- Flashbench-results - lists.linaro.org

by Santiago Castillo Oli

Hi flashbench-results. I'm trying to get the most from a Samsung 32Gb SDHC Class10 card. I've run a flashbench (compiled for x86) on a Asus Eee PC 901. I'm posting the results as an attached file to this message. I guess the page size is 16Kb, but not sure about erase block. What do you think? Strangely the 4 Mb boundary is faster than bigger boundaries. Regards -- ________________________________________________ Santiago Castillo Oli scastillo(a)aragon.es Técnico de sistemas 976 71 50 06 Biblioteca de Aragón

14 years, 1 month

2
5
0 0

GPS with Traffic Recorder

by Hillary Wu

To ensure delivery of these Emails to your inbox, please add sales1(a)gk-ing.com to your email address book. Dear valued customers, Have a nice day.Wish things go smoothly with you. Have you been bothered by traffic accident?It's indeed a bad thing to meet such situation.But don't worry,on March,we promote our GPS with special traffic recorder function to solve your problem. *5 inch /7 inch GPS+Traffic Recorder+Bluetooth+FM+AVIN+4GB flash,A+screen *Provide evidence for traffic accident. *Prevent fraudulent insurance acts. *Record the malicious behavior of scratching the car when parking the car. *Best price:$63.68/pcs for 5 inch; $70.08/pcs for 7 inch. Are you interested in above model?Any question just contact me freely for further discussion. Sincerely, Hillary wu G&K.Ing,We make miracle. Add:Rm 703.King Lihua Commercial Building,NO.1133 Yiyuan Road,Bao"an,Shenzhen,China Tel: 86(0)755 2220 8877 Fax:86(0)755 2214 1877 Mobile: 86-15220242320 MSN: gking.sales1(a)hotmail.com E-mail: sales1(a)gk-ing.com Website: www.gk-ing.com If you want to receive more types of Emails, please click subscribe. If you don't want to receive these Emails, please click unsubscribe. IYou could share this Email to your friends, please click forward.

14 years, 2 months

1
0
0 0

Re: [Flashbench] Original Sandisk TF Card

by Hillary Wu

To ensure delivery of these Emails to your inbox, please add sales1(a)gk-ing.com to your email address book. Dear valued customer, Wish you a nice new week.Hillary from G&K.Ing bring news for you. Original Sandisk TF card promotional price (500-1000pcs): 2GB:$2.88; 4GB:$3.20; 8GB:$4.48; 16GB:$10.72; 32GB:$24.72. Price valid for 2 days.Our TF cards have fast reading and writng speed,can pass H2Testw software. Attached is picture for your preview. There are far more items at our website,welcome to view at http://www.gk-ing.com/products.html. Any interest or question pls contact me freely for further discussion. Sincerely, Hillary wu G&K.Ing,We make miracle. Add:Rm 703.King Lihua Commercial Building,NO.1133 Yiyuan Road,Bao"an,Shenzhen,China Tel: 86(0)755 2220 8877 Fax:86(0)755 2214 1877 Mobile: 86-15220242320 MSN: gking.sales1(a)hotmail.com E-mail: sales1(a)gk-ing.com Website: www.gk-ing.com If you want to receive more types of Emails, please click subscribe. If you don't want to receive these Emails, please click unsubscribe. IYou could share this Email to your friends, please click forward.

14 years, 2 months

1
0
0 0

SanDisk Mobile Ultra 4GB Class 6 microSD part number: SDSDQY-004G-A11A

by Andrew Bradford

9 open erase blocks! Looks like a rather nice microSD card, compared to others I've seen. # BeagleBoard-xM is my only home computer with a built-in MMC device: root@192:~/flashbench# head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 035344535530344780a0a0dbc100bbc9 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d8a7f800a4040b9 ==> /sys/block/mmcblk0/device/date <== 11/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x8 ==> /sys/block/mmcblk0/device/manfid <== 0x000003 ==> /sys/block/mmcblk0/device/name <== SU04G ==> /sys/block/mmcblk0/device/oemid <== 0x5344 ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800300000000 ==> /sys/block/mmcblk0/device/serial <== 0xa0a0dbc1 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SU04G MODALIAS=mmc:block # All further tests done using Transcend USB2.0 reader on my desktop andrew@bigbox:~/flashbench$ sudo sfdisk -uS -l /dev/sdc Disk /dev/sdc: 1890 cylinders, 128 heads, 32 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sdc1 * 8192 7741439 7733248 c W95 FAT32 (LBA) /dev/sdc2 0 - 0 0 Empty /dev/sdc3 0 - 0 0 Empty /dev/sdc4 0 - 0 0 Empty andrew@bigbox:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 1073741824 pre 872µs on 921µs post 873µs diff 48.5µs align 536870912 pre 872µs on 973µs post 871µs diff 102µs align 268435456 pre 872µs on 935µs post 872µs diff 63.5µs align 134217728 pre 1ms on 1.04ms post 1ms diff 40.1µs align 67108864 pre 966µs on 1.07ms post 976µs diff 97.7µs align 33554432 pre 1ms on 1.07ms post 1.01ms diff 63.6µs align 16777216 pre 999µs on 1.09ms post 1.01ms diff 86.7µs align 8388608 pre 999µs on 1.03ms post 1ms diff 32.3µs align 4194304 pre 1.03ms on 1.12ms post 1.03ms diff 95.6µs align 2097152 pre 999µs on 1.1ms post 1.03ms diff 88.8µs align 1048576 pre 1.01ms on 1.04ms post 1.01ms diff 34.9µs align 524288 pre 1.01ms on 1.03ms post 1.02ms diff 18.4µs align 262144 pre 1.01ms on 1.02ms post 986µs diff 28.5µs align 131072 pre 1ms on 1.03ms post 1.01ms diff 26.9µs align 65536 pre 1ms on 1.03ms post 1.01ms diff 27.1µs align 32768 pre 985µs on 1.03ms post 1ms diff 32.2µs align 16384 pre 986µs on 982µs post 966µs diff 5.55µs align 8192 pre 1.01ms on 1ms post 1.01ms diff -9139ns align 4096 pre 981µs on 1.03ms post 1.04ms diff 25.9µs align 2048 pre 974µs on 977µs post 973µs diff 3.65µs ## 2MiB erase block ## 8KiB pages? hard to see andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 2MiB 13.2M/s 1MiB 13.1M/s 512KiB 12.9M/s 256KiB 12.9M/s 128KiB 12.8M/s 64KiB 12.2M/s 32KiB 12.9M/s 16KiB 13M/s 8KiB 9.61M/s 4KiB 6.5M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 2MiB 13M/s 1MiB 7.34M/s 512KiB 12M/s 256KiB 12.2M/s 128KiB 11.4M/s 64KiB 10.3M/s 32KiB 8.52M/s 16KiB 6.35M/s 8KiB 3.46M/s 4KiB 1.6M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=3 2MiB 13M/s 1MiB 8.41M/s 512KiB 12.5M/s 256KiB 12.1M/s 128KiB 11.6M/s 64KiB 10.3M/s 32KiB 8.6M/s 16KiB 6.39M/s 8KiB 3.46M/s 4KiB 1.62M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=9 2MiB 12.8M/s 1MiB 11M/s 512KiB 12.4M/s 256KiB 12.2M/s 128KiB 11.5M/s 64KiB 10.3M/s 32KiB 8.57M/s 16KiB 6.33M/s 8KiB 3.37M/s 4KiB 1.6M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=10 2MiB 13M/s 1MiB 6.88M/s 512KiB 2.41M/s 256KiB 1.1M/s 128KiB 531K/s 64KiB 263K/s 32KiB 130K/s 16KiB 64.8K/s 8KiB 302K/s 4KiB 346K/s # 9 open-au has same performance as 2 open-au. andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=1 2MiB 10.7M/s 1MiB 12.7M/s 512KiB 11.7M/s 256KiB 3.55M/s 128KiB 1.18M/s 64KiB 652K/s 32KiB 310K/s 16KiB 180K/s 8KiB 872K/s 4KiB 1.08M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=2 2MiB 12.4M/s 1MiB 12.6M/s 512KiB 12.2M/s 256KiB 3.56M/s 128KiB 1.18M/s 64KiB 649K/s 32KiB 310K/s 16KiB 179K/s 8KiB 844K/s 4KiB 982K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=3 2MiB 12.4M/s 1MiB 12.9M/s 512KiB 12.3M/s 256KiB 3.56M/s 128KiB 1.18M/s 64KiB 652K/s 32KiB 311K/s 16KiB 178K/s 8KiB 869K/s 4KiB 1M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=9 2MiB 10.4M/s 1MiB 12.6M/s 512KiB 12.1M/s 256KiB 3.54M/s 128KiB 1.18M/s 64KiB 647K/s 32KiB 310K/s 16KiB 180K/s 8KiB 820K/s 4KiB 928K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=10 2MiB 11.9M/s 1MiB 6.83M/s 512KiB 2.4M/s 256KiB 1.1M/s 128KiB 531K/s 64KiB 263K/s 32KiB 130K/s 16KiB 64.8K/s 8KiB 929K/s 4KiB 954K/s

14 years, 2 months

2
5
0 0

Kingston 4GB microSD part number: SDC4/4GB

by Andrew Bradford

Came with my BeagleBoard-xM purchased near the end of 2010. Card was previously used extensively. Repartitioned to be aligned to 4MiB before testing. # BeagleBoard-xM is my only home computer with a built-in MMC device: root@192:~/flashbench# head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 02544d5341303447061111058e00aaf1 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d6f7f800a4000a1 ==> /sys/block/mmcblk0/device/date <== 10/2010 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x6 ==> /sys/block/mmcblk0/device/hwrev <== 0x0 ==> /sys/block/mmcblk0/device/manfid <== 0x000002 ==> /sys/block/mmcblk0/device/name <== SA04G ==> /sys/block/mmcblk0/device/oemid <== 0x544d ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800001000000 ==> /sys/block/mmcblk0/device/serial <== 0x1111058e ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SA04G MODALIAS=mmc:block # All further tests done using Transcend USB2.0 reader andrew@bigbox:~/flashbench$ sudo sfdisk -uS -l /dev/sdc Disk /dev/sdc: 1884 cylinders, 128 heads, 32 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sdc1 * 8192 7716863 7708672 c W95 FAT32 (LBA) /dev/sdc2 0 - 0 0 Empty /dev/sdc3 0 - 0 0 Empty /dev/sdc4 0 - 0 0 Empty andrew@bigbox:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 1073741824 pre 2.06ms on 3.41ms post 2.24ms diff 1.26ms align 536870912 pre 2.09ms on 3.48ms post 2.31ms diff 1.28ms align 268435456 pre 2.09ms on 3.42ms post 2.27ms diff 1.24ms align 134217728 pre 2.09ms on 3.44ms post 2.26ms diff 1.27ms align 67108864 pre 1.94ms on 3.26ms post 2.25ms diff 1.17ms align 33554432 pre 2.07ms on 3.4ms post 2.24ms diff 1.25ms align 16777216 pre 2.04ms on 3.41ms post 2.24ms diff 1.27ms align 8388608 pre 1.9ms on 3.26ms post 2.24ms diff 1.19ms align 4194304 pre 1.93ms on 3.09ms post 2.07ms diff 1.09ms align 2097152 pre 2.06ms on 2.08ms post 2.05ms diff 25.4µs align 1048576 pre 2.08ms on 2.11ms post 2.08ms diff 32.4µs align 524288 pre 2.06ms on 2.09ms post 2.05ms diff 32.2µs align 262144 pre 2.06ms on 2.08ms post 2.07ms diff 21.5µs align 131072 pre 2.06ms on 2.09ms post 2.06ms diff 24.9µs align 65536 pre 2.07ms on 2.08ms post 2.06ms diff 14µs align 32768 pre 2.06ms on 2.09ms post 2.07ms diff 23.8µs align 16384 pre 2.06ms on 2.09ms post 2.06ms diff 32µs align 8192 pre 2.06ms on 2.08ms post 2.07ms diff 17.9µs align 4096 pre 2.05ms on 2.06ms post 2.07ms diff -7783ns align 2048 pre 2.07ms on 2.07ms post 2.07ms diff -4929ns # 4MiB erase block # 8KiB page andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[4*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 4MiB 3.57M/s 2MiB 4.76M/s 1MiB 4.75M/s 512KiB 4.87M/s 256KiB 4.75M/s 128KiB 4.63M/s 64KiB 4.71M/s 32KiB 4.67M/s 16KiB 4.75M/s 8KiB 4.38M/s 4KiB 3.78M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[4*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 4MiB 4.72M/s 2MiB 2.81M/s 1MiB 1.43M/s 512KiB 730K/s 256KiB 369K/s 128KiB 187K/s 64KiB 94.3K/s 32KiB 47.3K/s 16KiB 23.7K/s 8KiB 12K/s 4KiB 6.05K/s ## Only can have one open page at a time andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesi*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 --random 4MiB 3.45M/s 2MiB 3.22M/s 1MiB 2.87M/s 512KiB 1.15M/s 256KiB 453K/s 128KiB 280K/s 64KiB 142K/s 32KiB 77.7K/s 16KiB 38.4K/s 8KiB 19.5K/s 4KiB 9.79K/s ## Generally horrible at random andrew@bigbox:~/flashbench$ sudo ./flashbench --findfat --fat-nr=6 /dev/sdc --blocksize=$[8*1024] --random 4MiB 5.27M/s 2.77M/s 3.32M/s 4.81M/s 4.75M/s 4.7M/s 2MiB 4.48M/s 3.05M/s 1.53M/s 2.57M/s 2.63M/s 2.64M/s 1MiB 3.94M/s 3.39M/s 1.89M/s 1.79M/s 1.8M/s 1.78M/s 512KiB 2.59M/s 2.93M/s 943K/s 929K/s 930K/s 934K/s 256KiB 3.58M/s 3.4M/s 554K/s 556K/s 557K/s 556K/s 128KiB 1.64M/s 2.33M/s 249K/s 271K/s 271K/s 259K/s 64KiB 1.54M/s 1.56M/s 134K/s 134K/s 134K/s 134K/s 32KiB 751K/s 982K/s 74K/s 74.1K/s 74.2K/s 74.2K/s

14 years, 2 months

2
1
0 0

Samsung 4GB Class 4 microSD part number MB-MS4GA

by Andrew Bradford

Sorry if my previous few emails to the list came through with a www at the beginning of my domain. There were some DNS issues, they have been fixed. This was an interesting card. I'm not exactly sure what to make of the results. # BeagleBoard-xM is my only home computer with a built-in MMC device: root@192:~/flashbench# head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 1b534d30303030301010a306a500bb51 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d9b7f800a40003b ==> /sys/block/mmcblk0/device/date <== 11/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001b ==> /sys/block/mmcblk0/device/name <== 00000 ==> /sys/block/mmcblk0/device/oemid <== 0x534d ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x10a306a5 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=00000 MODALIAS=mmc:block # All further tests done using Transcend USB2.0 reader on my desktop andrew@bigbox:~/flashbench$ sudo sfdisk -uS -l /dev/sdc Disk /dev/sdc: 1895 cylinders, 128 heads, 32 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sdc1 * 8192 7761919 7753728 c W95 FAT32 (LBA) /dev/sdc2 0 - 0 0 Empty /dev/sdc3 0 - 0 0 Empty /dev/sdc4 0 - 0 0 Empty andrew@bigbox:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 1073741824 pre 1.3ms on 1.72ms post 1.41ms diff 366µs align 536870912 pre 1.31ms on 1.69ms post 1.41ms diff 336µs align 268435456 pre 1.29ms on 1.68ms post 1.42ms diff 325µs align 134217728 pre 1.19ms on 1.54ms post 1.33ms diff 274µs align 67108864 pre 1.19ms on 1.55ms post 1.32ms diff 292µs align 33554432 pre 1.18ms on 1.54ms post 1.32ms diff 286µs align 16777216 pre 1.19ms on 1.57ms post 1.32ms diff 312µs align 8388608 pre 1.21ms on 1.62ms post 1.37ms diff 331µs align 4194304 pre 1.16ms on 1.5ms post 1.31ms diff 268µs align 2097152 pre 1.18ms on 1.54ms post 1.35ms diff 277µs align 1048576 pre 1.16ms on 1.54ms post 1.32ms diff 301µs align 524288 pre 1.19ms on 1.36ms post 1.33ms diff 97µs align 262144 pre 1.19ms on 1.32ms post 1.33ms diff 58.9µs align 131072 pre 1.18ms on 1.39ms post 1.37ms diff 109µs align 65536 pre 1.2ms on 1.34ms post 1.33ms diff 78.7µs align 32768 pre 1.19ms on 1.35ms post 1.33ms diff 88.7µs align 16384 pre 1.17ms on 1.31ms post 1.3ms diff 76.4µs align 8192 pre 1.18ms on 1.3ms post 1.3ms diff 60.5µs align 4096 pre 1.24ms on 1.24ms post 1.22ms diff 6.35µs align 2048 pre 1.28ms on 1.28ms post 1.27ms diff 7.22µs # 1MiB erase block? # 8KiB page size andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[1*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 1MiB 3.08M/s 512KiB 1.88M/s 256KiB 1.91M/s 128KiB 1.98M/s 64KiB 1.88M/s 32KiB 1.95M/s 16KiB 1.93M/s 8KiB 1.94M/s 4KiB 1.72M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 2MiB 4.44M/s 1MiB 4.14M/s 512KiB 4.43M/s 256KiB 4.32M/s 128KiB 4.42M/s 64KiB 4.16M/s 32KiB 4.42M/s 16KiB 4.36M/s 8KiB 4.35M/s 4KiB 3.64M/s # Makes me think 2MiB erase block is accurate, bumping to --erasesize=$[4*1024*1024] has no effect. andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 2MiB 3.99M/s 1MiB 4.34M/s 512KiB 4.23M/s 256KiB 4.25M/s 128KiB 3.93M/s 64KiB 3.78M/s 32KiB 3.31M/s 16KiB 2.14M/s 8KiB 2.11M/s 4KiB 995K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=3 2MiB 3.55M/s 1MiB 2.26M/s 512KiB 2.04M/s 256KiB 1.29M/s 128KiB 247K/s 64KiB 1.04M/s 32KiB 955K/s 16KiB 2.04M/s 8KiB 1.69M/s 4KiB 602K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=4 2MiB 3.8M/s 1MiB 2.3M/s 512KiB 894K/s 256KiB 447K/s 128KiB 221K/s 64KiB 112K/s 32KiB 205K/s 16KiB 1.27M/s 8KiB 1.15M/s 4KiB 652K/s # 1 open-au is good, 2 open-au is OK, 3 open-au is falling off fast. # In 3 and 4 open-au, I'm not sure why the slowdown at 32KiB and then the speed-up at 16KiB. Caching in the controller? andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=1 2MiB 7.63M/s 1MiB 2.36M/s 512KiB 2.09M/s 256KiB 737K/s 128KiB 396K/s 64KiB 189K/s 32KiB 126K/s 16KiB 1.23M/s 8KiB 1.28M/s 4KiB 776K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=2 2MiB 3.82M/s 1MiB 2.36M/s 512KiB 2.13M/s 256KiB 666K/s 128KiB 399K/s 64KiB 188K/s 32KiB 132K/s 16KiB 2.45M/s 8KiB 2.12M/s 4KiB 869K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --random --open-au-nr=3 2MiB 4.11M/s 1MiB 2.19M/s 512KiB 1.59M/s 256KiB 605K/s 128KiB 288K/s 64KiB 158K/s 32KiB 121K/s 16KiB 1.99M/s 8KiB 1.12M/s 4KiB 708K/s

14 years, 2 months

2
1
0 0

Amazon Basics 4GB Class 10 microSD part number: B0058GH3II

by Andrew Bradford

# BeagleBoard-xM is my only home computer with a built-in MMC device: root@192:~# head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 2750485344303447300119bad200ba7d ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001da77f800a40002d ==> /sys/block/mmcblk0/device/date <== 10/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x3 ==> /sys/block/mmcblk0/device/manfid <== 0x000027 ==> /sys/block/mmcblk0/device/name <== SD04G ==> /sys/block/mmcblk0/device/oemid <== 0x5048 ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800001000000 ==> /sys/block/mmcblk0/device/serial <== 0x0119bad2 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SD04G MODALIAS=mmc:block # All further tests done using Transcend USB2.0 reader on my desktop andrew@bigbox:~/flashbench$ sudo sfdisk -uS -l /dev/sdc Disk /dev/sdc: 1898 cylinders, 128 heads, 32 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sdc1 * 8192 7774207 7766016 c W95 FAT32 (LBA) /dev/sdc2 0 - 0 0 Empty /dev/sdc3 0 - 0 0 Empty /dev/sdc4 0 - 0 0 Empty andrew@bigbox:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 1073741824 pre 2.1ms on 2.56ms post 2.07ms diff 475µs align 536870912 pre 1.96ms on 2.44ms post 1.97ms diff 479µs align 268435456 pre 2.01ms on 2.49ms post 2.01ms diff 482µs align 134217728 pre 2.09ms on 2.59ms post 2.03ms diff 529µs align 67108864 pre 2.05ms on 2.56ms post 1.99ms diff 536µs align 33554432 pre 2ms on 2.47ms post 2ms diff 465µs align 16777216 pre 2.02ms on 2.51ms post 2ms diff 502µs align 8388608 pre 2.03ms on 2.58ms post 2.02ms diff 552µs align 4194304 pre 1.93ms on 2.47ms post 1.99ms diff 508µs align 2097152 pre 1.94ms on 2.43ms post 1.96ms diff 484µs align 1048576 pre 1.96ms on 2.04ms post 1.94ms diff 89µs align 524288 pre 1.96ms on 2.01ms post 1.94ms diff 61.5µs align 262144 pre 1.94ms on 1.96ms post 1.93ms diff 24.4µs align 131072 pre 1.97ms on 2.03ms post 1.96ms diff 60.4µs align 65536 pre 1.95ms on 1.97ms post 1.93ms diff 28.7µs align 32768 pre 1.96ms on 2.03ms post 1.95ms diff 72.2µs align 16384 pre 1.94ms on 2.02ms post 1.94ms diff 79.1µs align 8192 pre 1.95ms on 2.04ms post 1.95ms diff 89.8µs align 4096 pre 1.94ms on 1.98ms post 1.95ms diff 37.2µs align 2048 pre 1.98ms on 2.01ms post 1.96ms diff 39µs # 2MiB erase block # 8KiB pages andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 2MiB 12.9M/s 1MiB 12.6M/s 512KiB 12.2M/s 256KiB 11.7M/s 128KiB 12.3M/s 64KiB 12.5M/s 32KiB 12.3M/s 16KiB 12.3M/s 8KiB 9.98M/s 4KiB 6.36M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 2MiB 12.7M/s 1MiB 4.84M/s 512KiB 1.79M/s 256KiB 815K/s 128KiB 393K/s 64KiB 194K/s 32KiB 96.3K/s 16KiB 48.4K/s 8KiB 24.1K/s 4KiB 12K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 --random 2MiB 6.24M/s 1MiB 5.79M/s 512KiB 4.82M/s 256KiB 1.41M/s 128KiB 713K/s 64KiB 312K/s 32KiB 147K/s 16KiB 79.4K/s 8KiB 39.1K/s 4KiB 182K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 --random 2MiB 5.44M/s 1MiB 4.26M/s 512KiB 1.72M/s 256KiB 798K/s 128KiB 386K/s 64KiB 191K/s time_write: Input/output error 32KiB 96.7K/s time_write: Input/output error 16KiB 47.9K/s 8KiB 24K/s 4KiB 182K/s

14 years, 2 months

1
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Kingston 4GB Class 10 microSD part number: SDC10/4GB

by Andrew Bradford

# BeagleBoard-xM is my only home computer with a built-in MMC device: root@192:~/flashbench# head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 4134325344344742300000011200ba39 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001da77f800a40002d ==> /sys/block/mmcblk0/device/date <== 10/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x3 ==> /sys/block/mmcblk0/device/manfid <== 0x000041 ==> /sys/block/mmcblk0/device/name <== SD4GB ==> /sys/block/mmcblk0/device/oemid <== 0x3432 ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800001000000 ==> /sys/block/mmcblk0/device/serial <== 0x00000112 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SD4GB MODALIAS=mmc:block # All further tests done using Transcend USB2.0 reader on my desktop # Partition table used for tests: andrew@bigbox:~/flashbench$ sudo sfdisk -uS -l /dev/sdc Disk /dev/sdc: 1898 cylinders, 128 heads, 32 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sdc1 * 8192 7774207 7766016 c W95 FAT32 (LBA) /dev/sdc2 0 - 0 0 Empty /dev/sdc3 0 - 0 0 Empty /dev/sdc4 0 - 0 0 Empty andrew@bigbox:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 1073741824 pre 2.06ms on 2.58ms post 2.09ms diff 505µs align 536870912 pre 1.97ms on 2.45ms post 1.97ms diff 481µs align 268435456 pre 2.03ms on 2.52ms post 2.03ms diff 486µs align 134217728 pre 2.06ms on 2.59ms post 2.03ms diff 542µs align 67108864 pre 2.07ms on 2.62ms post 2.04ms diff 561µs align 33554432 pre 2.06ms on 2.5ms post 2.07ms diff 436µs align 16777216 pre 2.08ms on 2.6ms post 2.05ms diff 538µs align 8388608 pre 2.1ms on 2.64ms post 2.03ms diff 576µs align 4194304 pre 2.05ms on 2.57ms post 2.08ms diff 504µs align 2097152 pre 1.97ms on 2.47ms post 1.99ms diff 493µs align 1048576 pre 1.97ms on 2.1ms post 1.99ms diff 117µs align 524288 pre 2ms on 2.06ms post 2ms diff 59.2µs align 262144 pre 2ms on 2.06ms post 1.99ms diff 60µs align 131072 pre 1.99ms on 2.06ms post 1.99ms diff 74.3µs align 65536 pre 2.02ms on 2.06ms post 1.98ms diff 57.1µs align 32768 pre 2ms on 2.06ms post 2ms diff 64.2µs align 16384 pre 1.98ms on 2.07ms post 1.98ms diff 88.2µs align 8192 pre 1.99ms on 2.06ms post 1.99ms diff 71µs align 4096 pre 2ms on 2.03ms post 1.99ms diff 32.1µs align 2048 pre 1.99ms on 2.03ms post 1.99ms diff 39.6µs ## 2MiB erase block ## Why the drop again at 1MiB? ## 8KiB page andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 2MiB 13M/s 1MiB 12.5M/s 512KiB 12.4M/s 256KiB 11.1M/s 128KiB 11.9M/s 64KiB 12.4M/s 32KiB 12.3M/s 16KiB 12.4M/s 8KiB 10.2M/s 4KiB 6.26M/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=2 2MiB 12.6M/s 1MiB 4.72M/s 512KiB 1.79M/s 256KiB 818K/s 128KiB 395K/s 64KiB 195K/s 32KiB 96.7K/s 16KiB 48.2K/s 8KiB 24.1K/s 4KiB 12K/s andrew@bigbox:~/flashbench$ sudo ./flashbench /dev/sdc --open-au --erasesize=$[2*1024*1024] --blocksize=$[4*1024] --open-au-nr=1 --random 2MiB 13.2M/s 1MiB 6.02M/s 512KiB 4.8M/s 256KiB 1.39M/s 128KiB 725K/s 64KiB 315K/s 32KiB 148K/s 16KiB 80K/s 8KiB 39.5K/s 4KiB 19.6K/s ## Generally horrible at random andrew@bigbox:~/flashbench$ sudo ./flashbench --findfat --fat-nr=6 /dev/sdc --blocksize=$[8*1024] --random 4MiB 2.58M/s 2.88M/s 6.1M/s 11.9M/s 11.3M/s 12.2M/s 2MiB 2.9M/s 2.73M/s 12.2M/s 11.6M/s 12.2M/s 12.4M/s 1MiB 2.58M/s 2.92M/s 4.72M/s 3.96M/s 3.9M/s 3.94M/s 512KiB 2.95M/s 2.62M/s 1.78M/s 1.33M/s 1.71M/s 1.72M/s 256KiB 1.74M/s 1.8M/s 934K/s 926K/s 925K/s 926K/s 128KiB 1.17M/s 1.19M/s 448K/s 447K/s 447K/s 448K/s 64KiB 743K/s 765K/s 213K/s 213K/s 213K/s 214K/s 32KiB 397K/s 410K/s 112K/s 113K/s 113K/s 113K/s

14 years, 2 months

1
0
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pny 8GB class 10 SDHC

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 1b534d3030303030102b38208800b700 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003b577f800a400000 ==> /sys/block/mmcblk0/device/date <== 07/2011 ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001b ==> /sys/block/mmcblk0/device/name <== 00000 ==> /sys/block/mmcblk0/device/oemid <== 0x534d ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x2b382088 ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=00000 MODALIAS=mmc:block 179 8 7778304 mmcblk0 179 9 7774208 mmcblk0p1 $ sudo ./flashbench -a /dev/mmcblk0 --blocksize 1024 align 805306368 pre 799µs on 1.13ms post 754µs diff 349µs align 536870912 pre 901µs on 1.19ms post 817µs diff 332µs align 402653184 pre 816µs on 1.13ms post 771µs diff 341µs align 268435456 pre 901µs on 1.2ms post 830µs diff 332µs align 201326592 pre 786µs on 1.13ms post 749µs diff 359µs align 134217728 pre 887µs on 1.17ms post 820µs diff 317µs align 100663296 pre 804µs on 1.12ms post 755µs diff 344µs align 67108864 pre 908µs on 1.2ms post 840µs diff 330µs align 50331648 pre 805µs on 1.12ms post 757µs diff 341µs align 33554432 pre 847µs on 1.13ms post 797µs diff 311µs align 25165824 pre 774µs on 1.1ms post 753µs diff 338µs align 16777216 pre 756µs on 962µs post 744µs diff 212µs align 12582912 pre 715µs on 1.03ms post 752µs diff 297µs align 8388608 pre 746µs on 979µs post 746µs diff 232µs align 6291456 pre 714µs on 1.09ms post 779µs diff 342µs align 4194304 pre 758µs on 995µs post 783µs diff 224µs align 3145728 pre 672µs on 766µs post 767µs diff 46.3µs align 2097152 pre 731µs on 991µs post 769µs diff 241µs align 1572864 pre 672µs on 764µs post 761µs diff 48.2µs align 1048576 pre 672µs on 769µs post 775µs diff 45.2µs align 786432 pre 674µs on 766µs post 767µs diff 45.8µs align 524288 pre 660µs on 755µs post 771µs diff 39.5µs align 393216 pre 670µs on 767µs post 762µs diff 51.8µs align 262144 pre 667µs on 771µs post 778µs diff 48.7µs align 196608 pre 671µs on 768µs post 768µs diff 48.5µs align 131072 pre 659µs on 763µs post 771µs diff 47.8µs align 98304 pre 666µs on 765µs post 767µs diff 49µs align 65536 pre 658µs on 764µs post 776µs diff 47µs align 49152 pre 662µs on 760µs post 769µs diff 44.8µs align 32768 pre 670µs on 773µs post 769µs diff 53.5µs align 24576 pre 679µs on 761µs post 783µs diff 30µs align 16384 pre 680µs on 778µs post 781µs diff 47.5µs align 12288 pre 740µs on 732µs post 732µs diff -4351ns arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --findfat --fat-nr=5 --erasesize=$[8 * 1024 * 1024] 8MiB 4.55M/s 7.82M/s 7.76M/s 7.8M/s 7.81M/s 4MiB 7.79M/s 7.72M/s 7.68M/s 6.62M/s 7.79M/s 2MiB 7.75M/s 7.72M/s 7.71M/s 6.49M/s 7.71M/s 1MiB 7.77M/s 7.76M/s 7.7M/s 6.41M/s 7.75M/s 512KiB 7.8M/s 7.78M/s 7.76M/s 6.55M/s 7.8M/s 256KiB 7.7M/s 7.79M/s 7.76M/s 6.48M/s 7.7M/s 128KiB 7.75M/s 7.72M/s 7.71M/s 6.49M/s 7.56M/s 64KiB 7.75M/s 7.73M/s 7.7M/s 6.48M/s 7.74M/s 32KiB 5.79M/s 5.82M/s 5.79M/s 5.07M/s 5.79M/s 16KiB 3.72M/s 2.09M/s 2.67M/s 2.51M/s 1.62M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --findfat --fat-nr=4 --erasesize=$[4 * 1024 * 1024] --blocksize=1024 4MiB 7.76M/s 7.66M/s 7.65M/s 7.78M/s 2MiB 3.05M/s 5.53M/s 7.65M/s 7.77M/s 1MiB 2.36M/s 5.54M/s 7.68M/s 7.79M/s 512KiB 2.37M/s 5.53M/s 7.42M/s 7.78M/s 256KiB 3.58M/s 5.55M/s 7.67M/s 7.78M/s 128KiB 3.62M/s 5.54M/s 7.63M/s 7.76M/s 64KiB 7.74M/s 5.56M/s 7.66M/s 7.78M/s 32KiB 5.83M/s 4.48M/s 5.76M/s 5.84M/s 16KiB 3.68M/s 3.16M/s 2.11M/s 2.11M/s 8KiB 1.93M/s 1.08M/s 1.89M/s 1.36M/s 4KiB 814K/s 761K/s 927K/s 794K/s 2KiB 362K/s 442K/s 427K/s 402K/s 1KiB 217K/s 215K/s 224K/s 216K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=4 --erasesize=$[8 * 1024 * 1024] --random 8MiB 5.55M/s 4MiB 4.48M/s 2MiB 3.02M/s 1MiB 1.64M/s 512KiB 829K/s 512KiB 463K/s 256KiB 203K/s 128KiB 179K/s 64KiB 212K/s 32KiB 167K/s 16KiB 3.77M/s $ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[8 1024] --blocksize 512 8MiB 5.6M/s 4MiB 2.12M/s 2MiB 3.99M/s 1MiB 2.52M/s 512KiB 2.5M/s 256KiB 3.96M/s 128KiB 3.99M/s 64KiB 5.62M/s 32KiB 4.54M/s 16KiB 3.74M/s 8KiB 1.68M/s 4KiB 757K/s 2KiB 407K/s $ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 6MiB 7.63M/s 3MiB 4.45M/s 1.5MiB 4.43M/s 768KiB 2.38M/s 384KiB 2.39M/s 192KiB 3.11M/s 96KiB 4.05M/s 48KiB 6.16M/s 24KiB 4.11M/s 12KiB 1.86M/s 6KiB 1.14M/s 3KiB 527K/s 1.5KiB 314K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 6MiB 7.79M/s 3MiB 2.37M/s 1.5MiB 2.36M/s 768KiB 2.38M/s 384KiB 2.39M/s 192KiB 3.1M/s 96KiB 4.03M/s 48KiB 6.15M/s 24KiB 4.12M/s 12KiB 1.86M/s 6KiB 1.12M/s 3KiB 526K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[6 * 1024 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] --random 6MiB 7.45M/s 3MiB 1.77M/s 1.5MiB 1.69M/s 768KiB 599K/s 384KiB 340K/s 192KiB 171K/s 96KiB 199K/s 48KiB 174K/s 24KiB 193K/s 12KiB 1.55M/s 6KiB 1.06M/s 3KiB 543K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=3 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] [sudo] password for arnd: 6MiB 7.39M/s 3MiB 4.44M/s 1.5MiB 2.96M/s 768KiB 2.31M/s 384KiB 1.61M/s 192KiB 1.53M/s 96KiB 1.13M/s 48KiB 1.14M/s 24KiB 1.11M/s 12KiB 1.25M/s 6KiB 921K/s ^rnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=6 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 6MiB 7.22M/s 3MiB 4.82M/s 1.5MiB 2.6M/s 768KiB 1.24M/s 384KiB 633K/s 192KiB 321K/s 96KiB 162K/s ^rnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=4 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 6MiB 5.07M/s 3MiB 5.05M/s 1.5MiB 2.73M/s 768KiB 1.25M/s 384KiB 640K/s ^rnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 6MiB 4.56M/s 3MiB 5.91M/s 1.5MiB 7.9M/s 768KiB 7.93M/s 384KiB 7.9M/s 192KiB 7.88M/s 96KiB 6.72M/s 48KiB 6.25M/s 24KiB 4.21M/s 12KiB 1.65M/s 6KiB 942K/s 3KiB 570K/s 1.5KiB 297K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[6 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] --random 6MiB 7.73M/s 3MiB 5.75M/s 1.5MiB 5.06M/s 768KiB 1.99M/s 384KiB 1.12M/s 192KiB 512K/s ^rnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[3 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 3MiB 4.53M/s 1.5MiB 3.56M/s 768KiB 4.5M/s 384KiB 4.49M/s 192KiB 4.49M/s 96KiB 4.09M/s 48KiB 3.9M/s 24KiB 2.97M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=3 --erasesize=$[3 * 1024 * 1024] --blocksize 1536 --offset=$[64 * 1024 * 576] 3MiB 5.02M/s 1.5MiB 2.92M/s 768KiB 2.11M/s 384KiB 1.45M/s 192KiB 1.33M/s 96KiB 1.06M/s 48KiB 1.04M/s 24KiB 1.05M/s 12KiB 1.38M/s 6KiB 910K/s After removing the card, it was broken and could no longer be read...

14 years, 3 months

1
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0 0

Merry Christmas G&K.Ing

by Cngking

To ensure delivery of these Emails to your inbox, please add sales(a)gk-ing.com to your email address book. Dear Friend: Thank for you support in the past 2011,Coming Christmas and New year day.G&K.ing wish you Merry Christmas! Happy New Year!! Quality,Service,Long Term Cooperation---Our Unremitting Pursuit!!! Sincerely/Gwen G&K.Ing,We make miracle. Add:Rm 703.King Lihua Commercial Building,NO.1133 Yiyuan Road,Bao"an,Shenzhen,China Tel: 86(0)755 2220 8877 Fax:86(0)755 2214 1877 Website : www.gk-ing.com If you don't want to receive these Emails, please click unsubscribe.

14 years, 4 months

1
0
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Merry Christmas&Happy New Year

by 1impress Fungchoi Group (Pte) Lt

14 years, 4 months

1
0
0 0

Kingston CF 2GB

by Philippe De Muyter

Hello Arnd, Here are the results for the Kingston CF 2GB (Assy in TAIWAN). The one marked with (Assy in Japan) have another size, and probabbly other characteristics. Could the size be related to the number of open-au's ? Philippe tmp179:~ # cat /proc/partitions major minor #blocks name 8 0 244198584 sda 8 1 2103296 sda1 8 2 20972544 sda2 8 16 1982232 sdb 8 17 1975963 sdb1 tmp179:~ # ./flashbench -a -b 1024 /dev/sdb sched_setscheduler: Operation not permitted align 67108864 pre 343µs on 370µs post 321µs diff 37.5µs align 33554432 pre 342µs on 367µs post 319µs diff 36.5µs align 16777216 pre 342µs on 368µs post 320µs diff 36.5µs align 8388608 pre 343µs on 368µs post 318µs diff 37.1µs align 4194304 pre 342µs on 368µs post 319µs diff 37.1µs align 2097152 pre 343µs on 368µs post 319µs diff 37µs align 1048576 pre 344µs on 370µs post 320µs diff 38.3µs align 524288 pre 322µs on 350µs post 344µs diff 17.1µs align 262144 pre 320µs on 349µs post 344µs diff 16.8µs align 131072 pre 321µs on 349µs post 344µs diff 16.9µs align 65536 pre 321µs on 350µs post 344µs diff 17.2µs align 32768 pre 323µs on 351µs post 344µs diff 18µs align 16384 pre 320µs on 326µs post 321µs diff 5.4µs align 8192 pre 321µs on 325µs post 320µs diff 5µs align 4096 pre 320µs on 326µs post 321µs diff 5.6µs align 2048 pre 320µs on 325µs post 321µs diff 4.85µs tmp179:~ # hdparm -i /dev/sdb /dev/sdb: Model=CF CARD 2GB, FwRev=20071116, SerialNo=CF 2GB 20051F71 Config={ HardSect NotMFM Fixed DTR>10Mbs } RawCHS=3933/16/63, TrkSize=0, SectSize=576, ECCbytes=4 BuffType=DualPort, BuffSize=1kB, MaxMultSect=1, MultSect=off CurCHS=3933/16/63, CurSects=3964464, LBA=yes, LBAsects=3964464 IORDY=no, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: *mdma0 mdma1 mdma2 AdvancedPM=no * signifies the current active mode tmp179:~ # for i in `seq 1 10`; do echo $i; ./flashbench --open-au --open-au-nr=$i --erasesize=$[1024 * 1024] --blocksize=16384 /dev/sdb; done 1 sched_setscheduler: Operation not permitted 1MiB 11M/s 512KiB 11.1M/s 256KiB 11M/s 128KiB 11M/s 64KiB 10.7M/s 32KiB 10M/s 16KiB 8.83M/s 2 sched_setscheduler: Operation not permitted 1MiB 11.1M/s 512KiB 11.1M/s 256KiB 11.1M/s 128KiB 11.1M/s 64KiB 10.7M/s 32KiB 10.1M/s 16KiB 8.87M/s 3 sched_setscheduler: Operation not permitted 1MiB 11.1M/s 512KiB 11.1M/s 256KiB 11.1M/s 128KiB 11.1M/s 64KiB 10.8M/s 32KiB 10.1M/s 16KiB 8.85M/s 4 sched_setscheduler: Operation not permitted 1MiB 11.1M/s 512KiB 8.32M/s 256KiB 4.56M/s 128KiB 2.39M/s ^C tmp179:~ # for i in `seq 1 10`; do echo $i; ./flashbench --open-au --open-au-nr=$i --erasesize=$[1024 * 1024] --blocksize=16384 /dev/sdb --random; done 1 sched_setscheduler: Operation not permitted 1MiB 11.1M/s 512KiB 11.1M/s 256KiB 7.38M/s 128KiB 6.18M/s 64KiB 6.12M/s 32KiB 6.47M/s 16KiB 7.04M/s 2 sched_setscheduler: Operation not permitted 1MiB 7.37M/s 512KiB 8.05M/s 256KiB 6.72M/s 128KiB 6.4M/s 64KiB 6.53M/s 32KiB 6.55M/s 16KiB 7.04M/s 3 sched_setscheduler: Operation not permitted 1MiB 8.66M/s 512KiB 9.11M/s 256KiB 6.79M/s 128KiB 5.55M/s 64KiB 4.24M/s 32KiB 4.05M/s 16KiB 3.92M/s 4 sched_setscheduler: Operation not permitted 1MiB 9.37M/s 512KiB 9.67M/s 256KiB 6.73M/s 128KiB 4.79M/s 64KiB 3.32M/s 32KiB 3.07M/s 16KiB 3.52M/s 5 sched_setscheduler: Operation not permitted 1MiB 9.8M/s 512KiB 7.8M/s 256KiB 4.75M/s 128KiB 4.21M/s 64KiB 2.99M/s 32KiB 2.46M/s 16KiB 2.75M/s 6 sched_setscheduler: Operation not permitted 1MiB 11.4M/s 512KiB 7.1M/s 256KiB 4.03M/s 128KiB 2.7M/s 64KiB 2.83M/s 32KiB 2.38M/s 16KiB 2.45M/s 7 sched_setscheduler: Operation not permitted 1MiB 11.4M/s 512KiB 6.71M/s 256KiB 3.73M/s 128KiB 2.43M/s 64KiB 2.49M/s 32KiB 2.07M/s 16KiB 2.11M/s 8 sched_setscheduler: Operation not permitted 1MiB 11.4M/s 512KiB 6.4M/s 256KiB 3.5M/s 128KiB 2.26M/s 64KiB 2.23M/s 32KiB 1.85M/s 16KiB 1.86M/s 9 sched_setscheduler: Operation not permitted 1MiB 11.4M/s 512KiB 6.18M/s 256KiB 3.33M/s 128KiB 2.1M/s 64KiB 2.04M/s 32KiB 1.65M/s 16KiB 1.66M/s 10 sched_setscheduler: Operation not permitted 1MiB 11.4M/s 512KiB 6M/s 256KiB 3.18M/s 128KiB 1.99M/s 64KiB 1.88M/s 32KiB 1.52M/s 16KiB 1.51M/s (reverse-i-search)`fat': ./flashbench --findfat --^Ct-nr=10 --erasesize=$[2 * 1024 * 1024] --blocksize=1024 /dev/sdb tmp179:~ # ./flashbench --findfat --fat-nr=10 --erasesize=$[1024 * 1024] --blocksize=1024 /dev/sdb sched_setscheduler: Operation not permitted 1MiB 4.32M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.2M/s 11.3M/s 11.4M/s 11.3M/s 11.4M/s 512KiB 11.3M/s 11.4M/s 11.1M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11M/s 11.4M/s 256KiB 11.4M/s 11.4M/s 11.2M/s 11.2M/s 11.2M/s 11.2M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 128KiB 11.3M/s 11.3M/s 11.2M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.2M/s 11.3M/s 11.4M/s 64KiB 11M/s 11M/s 11M/s 11M/s 10.8M/s 11M/s 11M/s 11M/s 11M/s 11M/s 32KiB 9.98M/s 10.3M/s 10.3M/s 10.3M/s 10.2M/s 10.1M/s 10.2M/s 10.2M/s 10.2M/s 10.3M/s 16KiB 8.99M/s 9.01M/s 9.01M/s 8.99M/s 8.94M/s 9.02M/s 9.03M/s 9.03M/s 9.01M/s 8.95M/s 8KiB 7.2M/s 7.23M/s 7.23M/s 7.22M/s 7.21M/s 7.23M/s 7.13M/s 7.23M/s 7.23M/s 7.22M/s 4KiB 4.98M/s 4.97M/s 4.83M/s 4.97M/s 4.97M/s 4.97M/s 4.92M/s 4.91M/s 4.93M/s 4.93M/s 2KiB 3.04M/s 3.06M/s 3.05M/s 3.06M/s 3.05M/s 3.06M/s 3.03M/s 3.06M/s 3.06M/s 3.06M/s 1KiB 1.26M/s 1.26M/s 1.26M/s 1.26M/s 1.25M/s 1.26M/s 1.26M/s 1.24M/s 1.26M/s 1.25M/s tmp179:~ # ./flashbench --findfat --fat-nr=10 --erasesize=$[1024 * 1024] --blocksize=1024 /dev/sdb sched_setscheduler: Operation not permitted 1MiB 11.2M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 512KiB 11.4M/s 11.2M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.2M/s 11.3M/s 256KiB 11M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.3M/s 11.1M/s 11.4M/s 11.4M/s 11M/s 128KiB 11.4M/s 11.2M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.3M/s 11.4M/s 11.3M/s 64KiB 11M/s 11M/s 11M/s 10.9M/s 11M/s 11M/s 11M/s 11M/s 11M/s 11M/s 32KiB 10.1M/s 10.2M/s 10M/s 10.4M/s 10.3M/s 10.3M/s 10.3M/s 10.3M/s 10.1M/s 10.3M/s 16KiB 9.03M/s 8.82M/s 9.02M/s 8.93M/s 8.94M/s 9.01M/s 9.03M/s 9M/s 9.02M/s 9.01M/s 8KiB 7.24M/s 7.22M/s 7.23M/s 7.21M/s 7.22M/s 7.17M/s 7.24M/s 7.23M/s 7.22M/s 7.23M/s 4KiB 4.97M/s 4.98M/s 4.92M/s 4.93M/s 4.84M/s 4.99M/s 4.97M/s 4.96M/s 4.97M/s 4.96M/s 2KiB 3.01M/s 3.06M/s 3.06M/s 2.97M/s 3.05M/s 3.03M/s 3.03M/s 3.05M/s 3.06M/s 3.05M/s 1KiB 1.26M/s 1.26M/s 1.26M/s 1.26M/s 1.26M/s 1.26M/s 1.26M/s 1.25M/s 1.24M/s 1.26M/s tmp179:~ # -- Philippe De Muyter +32 2 6101532 Macq SA rue de l'Aeronef 2 B-1140 Bruxelles

14 years, 4 months

2
9
0 0

SanDisk SDSDQY-008G-A11A Mobile Ultra 8GB microSD card

by Andrew Bradford

Just received a new SanDisk Mobile Ultra 8GB microSD card. Tests done on my HP Elitebook 8560w with Debian 6 and 2.6.38 kernel. Card is direct out of the packaging and into tests. It looks like 4MB erase blocks and either 8kB or 32kB pages, but I'm not really sure. Tests done with 8kB blocksize. 6 connections work well, 7 and 8 fall off quickly in performance. If there's any other info needed, please let me know. -Andrew andrew@bradford:~/flashbench$ sudo head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 035344535530384780716a01f200bb00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003b377f800a404000 ==> /sys/block/mmcblk0/device/date <== 11/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x8 ==> /sys/block/mmcblk0/device/manfid <== 0x000003 ==> /sys/block/mmcblk0/device/name <== SU08G ==> /sys/block/mmcblk0/device/oemid <== 0x5344 ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800300000000 ==> /sys/block/mmcblk0/device/serial <== 0x716a01f2 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SU08G MODALIAS=mmc:block andrew@bradford:~/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 7948 MB, 7948206080 bytes 81 heads, 10 sectors/track, 19165 cylinders Units = cylinders of 810 * 512 = 414720 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/mmcblk0p1 11 19166 7757824 b W95 FAT32 andrew@bradford:~/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 align 2147483648 pre 508µs on 575µs post 467µs diff 87.3µs align 1073741824 pre 518µs on 601µs post 469µs diff 107µs align 536870912 pre 526µs on 600µs post 469µs diff 103µs align 268435456 pre 509µs on 598µs post 468µs diff 110µs align 134217728 pre 526µs on 599µs post 469µs diff 102µs align 67108864 pre 519µs on 597µs post 467µs diff 104µs align 33554432 pre 515µs on 598µs post 468µs diff 106µs align 16777216 pre 510µs on 594µs post 466µs diff 106µs align 8388608 pre 508µs on 584µs post 465µs diff 97.4µs align 4194304 pre 492µs on 593µs post 480µs diff 107µs align 2097152 pre 480µs on 478µs post 468µs diff 4.16µs align 1048576 pre 482µs on 481µs post 470µs diff 5.2µs align 524288 pre 482µs on 482µs post 467µs diff 7.22µs align 262144 pre 480µs on 479µs post 469µs diff 4.83µs align 131072 pre 480µs on 480µs post 467µs diff 7.06µs align 65536 pre 480µs on 480µs post 470µs diff 4.72µs align 32768 pre 479µs on 480µs post 464µs diff 8.17µs align 16384 pre 481µs on 478µs post 470µs diff 3.09µs align 8192 pre 468µs on 471µs post 470µs diff 1.54µs align 4096 pre 481µs on 464µs post 467µs diff -9689ns align 2048 pre 451µs on 456µs post 456µs diff 2.33µs andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=1 4MiB 10.7M/s 2MiB 10.7M/s 1MiB 10.7M/s 512KiB 10.7M/s 256KiB 10.6M/s 128KiB 10.6M/s 64KiB 10.6M/s 32KiB 9.53M/s 16KiB 8.09M/s 8KiB 5.99M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=6 4MiB 10.6M/s 2MiB 10.7M/s 1MiB 10.6M/s 512KiB 10.6M/s 256KiB 10.6M/s 128KiB 10.4M/s 64KiB 10.3M/s 32KiB 9.04M/s 16KiB 7.36M/s 8KiB 5.19M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=7 4MiB 6.55M/s 2MiB 7.04M/s 1MiB 5.81M/s 512KiB 5.77M/s 256KiB 5.65M/s 128KiB 5.57M/s 64KiB 6.52M/s 32KiB 7.24M/s 16KiB 6.29M/s 8KiB 4.69M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=8 4MiB 7.08M/s 2MiB 5.53M/s 1MiB 3.9M/s 512KiB 4.7M/s 256KiB 4.05M/s 128KiB 4.54M/s 64KiB 5.84M/s 32KiB 6.28M/s 16KiB 5.66M/s 8KiB 614K/s ndrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=2 --random 4MiB 10.4M/s 2MiB 10.6M/s 1MiB 10.6M/s 512KiB 10.5M/s 256KiB 8.4M/s 128KiB 4.36M/s 64KiB 2.39M/s 32KiB 1.23M/s 16KiB 604K/s 8KiB 2.23M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=6 --random 4MiB 8.06M/s 2MiB 6.91M/s 1MiB 10.6M/s 512KiB 10.6M/s 256KiB 8.44M/s 128KiB 4.37M/s 64KiB 2.4M/s 32KiB 1.23M/s 16KiB 606K/s 8KiB 1.9M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=7 --random 4MiB 6.65M/s 2MiB 6.52M/s 1MiB 5.75M/s 512KiB 4.01M/s 256KiB 2.93M/s 128KiB 1.73M/s 64KiB 952K/s 32KiB 533K/s 16KiB 365K/s 8KiB 1.35M/s

14 years, 5 months

1
0
0 0

PNY 4GB microSD Class 4 C04G Taiwan manfid 0x000002 oemid 0x544d

by Andrew Bradford

If I'm reading my results correctly, this card is 2MB erase blocks and 8KB pages and it can only have 1 open segment at a time? It's not that fast of a card, I have another one with ext3 running on a PandaBoard with Emdebian Squeeze. As this is my first usage of flashbench, if there's any other info that would be useful, please let me know. This card was brand new before testing. Thanks, Andrew andrew@bradford:~/flashbench$ sudo head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 02544d534430344760b099f09300b400 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d877f800a400000 ==> /sys/block/mmcblk0/device/date <== 04/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x6 ==> /sys/block/mmcblk0/device/manfid <== 0x000002 ==> /sys/block/mmcblk0/device/name <== SD04G ==> /sys/block/mmcblk0/device/oemid <== 0x544d ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 02b5800026025202 ==> /sys/block/mmcblk0/device/serial <== 0xb099f093 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SD04G MODALIAS=mmc:block andrew@bradford:~/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 3963 MB, 3963617280 bytes 128 heads, 63 sectors/track, 960 cylinders Units = cylinders of 8064 * 512 = 4128768 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/mmcblk0p1 2 960 3866624 b W95 FAT32 andrew@bradford:~/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 align 1073741824 pre 896µs on 1.05ms post 753µs diff 225µs align 536870912 pre 959µs on 1.09ms post 731µs diff 241µs align 268435456 pre 744µs on 867µs post 731µs diff 129µs align 134217728 pre 744µs on 862µs post 731µs diff 125µs align 67108864 pre 741µs on 878µs post 745µs diff 135µs align 33554432 pre 742µs on 878µs post 746µs diff 134µs align 16777216 pre 742µs on 874µs post 747µs diff 130µs align 8388608 pre 739µs on 889µs post 754µs diff 143µs align 4194304 pre 754µs on 894µs post 749µs diff 142µs align 2097152 pre 764µs on 899µs post 752µs diff 141µs align 1048576 pre 761µs on 791µs post 762µs diff 29.1µs ## align 524288 pre 751µs on 793µs post 760µs diff 37.7µs align 262144 pre 758µs on 788µs post 763µs diff 27.9µs align 131072 pre 761µs on 799µs post 772µs diff 32.5µs align 65536 pre 761µs on 792µs post 770µs diff 26.6µs align 32768 pre 761µs on 789µs post 762µs diff 27.7µs align 16384 pre 762µs on 789µs post 762µs diff 26.8µs align 8192 pre 762µs on 787µs post 760µs diff 26µs align 4096 pre 760µs on 761µs post 761µs diff 318ns ## align 2048 pre 757µs on 757µs post 757µs diff 104ns andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[2 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=1 2MiB 8.46M/s 1MiB 8.28M/s 512KiB 8.42M/s 256KiB 8.11M/s 128KiB 8.42M/s 64KiB 8.15M/s 32KiB 7.71M/s 16KiB 5.47M/s 8KiB 3.32M/s andrew@bradford:~/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[2 * 1024 * 1024] --blocksize=$[8 * 1024] --open-au-nr=2 2MiB 5.82M/s 1MiB 4.82M/s 512KiB 2.23M/s 256KiB 1.09M/s 128KiB 545K/s 64KiB 273K/s 32KiB 136K/s 16KiB 68.2K/s 8KiB 622K/s

14 years, 5 months

1
0
0 0

IMPRESS your customer with our INNOVATED USB NOW!

by 1impress Fungchoi Group

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14 years, 5 months

1
0
0 0

(fake) Sandisk

by Arnd Bergmann

arnd@klappe2:~/git/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 2002 MB, 2002780160 bytes # 1,955,840 KB ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 1b534d3030303030102a24f3f600b200 ==> /sys/block/mmcblk0/device/csd <== 007fff325b5a83baf6dbdfff0e800000 ==> /sys/block/mmcblk0/device/date <== 02/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001b ==> /sys/block/mmcblk0/device/name <== 00000 ==> /sys/block/mmcblk0/device/oemid <== 0x534d # "SM" ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0225800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x2a24f3f6 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=00000 MODALIAS=mmc:block # 1MB erase block!: align 6291456 pre 1.52ms on 3.95ms post 3.21ms diff 1.59ms align 4194304 pre 1.57ms on 4.01ms post 3.21ms diff 1.62ms align 3145728 pre 1.54ms on 3.82ms post 3.05ms diff 1.53ms align 2097152 pre 1.56ms on 3.83ms post 3.03ms diff 1.53ms align 1572864 pre 2.3ms on 2.69ms post 2.59ms diff 247µs align 1048576 pre 1.64ms on 4.12ms post 3.25ms diff 1.67ms align 786432 pre 2.05ms on 2.48ms post 2.34ms diff 283µs align 524288 pre 2.34ms on 2.77ms post 2.61ms diff 298µs align 393216 pre 2.54ms on 2.97ms post 2.79ms diff 306µs align 262144 pre 2.66ms on 3.09ms post 2.96ms diff 274µs arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[4096 * 1024] --blocksize=4096 4MiB 4.78M/s 2MiB 6.4M/s 1MiB 6.45M/s 512KiB 6.32M/s 256KiB 6.47M/s 128KiB 6.43M/s 64KiB 6.31M/s 32KiB 5.34M/s 16KiB 3.96M/s 8KiB 1.09M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[4096 * 1024] --offset=$[2048*1024] --blocksize=4096 4MiB 4.88M/s 2MiB 6.43M/s 1MiB 6.35M/s 512KiB 6.33M/s 256KiB 6.44M/s 128KiB 6.4M/s 64KiB 5.25M/s 32KiB 5.33M/s 16KiB 3.91M/s 8KiB 2.32M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[4096 * 1024] --offset=$[33*512*1024] --blocksize=4096 4MiB 3.89M/s 2MiB 3.66M/s 1MiB 2.35M/s 512KiB 5M/s 256KiB 4M/s 128KiB 4.64M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[1024 * 1024] --blocksize=4096 1MiB 5.39M/s 512KiB 1.6M/s 256KiB 1.52M/s 128KiB 2.28M/s 64KiB 6.41M/s 32KiB 5.27M/s 16KiB 3.99M/s 8KiB 2.88M/s 4KiB 527K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --erasesize=$[4*1024 * 1024] --offset=$[34*512*1024] --blocksize=4096 4MiB 4.58M/s 2MiB 6.38M/s 1MiB 6.47M/s 512KiB 4.6M/s 256KiB 6.47M/s 128KiB 6.49M/s 64KiB 5.16M/s 32KiB 5.35M/s 16KiB 4.01M/s 8KiB 2.59M/s ^C # no random write: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --erasesize=$[4*1024 * 1024] --offset=$[32*512*1024] --blocksize=4096 --random 4MiB 3M/s 2MiB 2.51M/s 1MiB 2.55M/s 512KiB 1.09M/s 256KiB 727K/s 128KiB 357K/s 64KiB 309K/s ^C

14 years, 6 months

1
0
0 0

Kingston 2GB microSD

by Arnd Bergmann

==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 02544d53413032470520cddb0600a900 ==> /sys/block/mmcblk0/device/csd <== 002e00325b5aa3acffffff800a800000 ==> /sys/block/mmcblk0/device/date <== 09/2010 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x5 ==> /sys/block/mmcblk0/device/hwrev <== 0x0 ==> /sys/block/mmcblk0/device/manfid <== 0x000002 ==> /sys/block/mmcblk0/device/name <== SA02G ==> /sys/block/mmcblk0/device/oemid <== 0x544d # "TM" -> Toshiba ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0225800001000000 ==> /sys/block/mmcblk0/device/serial <== 0x20cddb06 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SA02G MODALIAS=mmc:block arnd@klappe2:~/git/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 1973 MB, 1973420032 bytes # 1,927,168KB # 2 MB erase block size: align 6291456 pre 1.81ms on 2.39ms post 1.31ms diff 834µs align 4194304 pre 2.07ms on 2.39ms post 1.31ms diff 702µs align 3145728 pre 1.33ms on 1.49ms post 1.32ms diff 162µs align 2097152 pre 2.03ms on 2.4ms post 1.3ms diff 729µs align 1572864 pre 1.34ms on 1.5ms post 1.33ms diff 162µs align 1048576 pre 1.41ms on 1.57ms post 1.33ms diff 195µs align 786432 pre 1.36ms on 1.52ms post 1.35ms diff 165µs #linear access, one erase block arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --blocksize=512 4MiB 5.49M/s 2MiB 4.07M/s 1MiB 4.1M/s 512KiB 4.12M/s 256KiB 4.13M/s 128KiB 5.77M/s 64KiB 9.5M/s 32KiB 8.54M/s 16KiB 6.48M/s 8KiB 3.94M/s 4KiB 1.28M/s 2KiB 543K/s 1KiB 2K/s # random access, one erase block: cannot do random access arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --random --blocksize=2048 4MiB 7.61M/s 2MiB 2.27M/s 1MiB 2.86M/s 512KiB 1.19M/s 256KiB 553K/s 128KiB 309K/s 64KiB 255K/s 32KiB 135K/s # linear access, two erase blocks: cannot be handled either: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=2 --blocksize=2048 4MiB 7.21M/s 2MiB 9.44M/s 1MiB 4.45M/s 512KiB 1.95M/s 256KiB 944K/s 128KiB 464K/s

14 years, 6 months

1
0
0 0

Transcend Class 10 micro 8GB

by Arnd Bergmann

arnd@klappe2:~/git/flashbench$ sudo head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 744a4555534420201005402e0500b700 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003bbd7f800a400000 ==> /sys/block/mmcblk0/device/date <== 07/2011 ==> /sys/block/mmcblk0/device/driver <== ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x000074 ==> /sys/block/mmcblk0/device/name <== USD ==> /sys/block/mmcblk0/device/oemid <== 0x4a45 # ==> "JE" ==> /sys/block/mmcblk0/device/power <== ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x05402e05 ==> /sys/block/mmcblk0/device/subsystem <== ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=USD MODALIAS=mmc:block arnd@klappe2:~/git/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 8018 MB, 8018460672 bytes # > 7,830,528 KB arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 align 12582912 pre 391µs on 729µs post 624µs diff 222µs align 8388608 pre 391µs on 741µs post 641µs diff 225µs align 6291456 pre 413µs on 697µs post 671µs diff 154µs align 4194304 pre 359µs on 741µs post 649µs diff 236µs align 3145728 pre 408µs on 701µs post 654µs diff 170µs align 2097152 pre 405µs on 700µs post 655µs diff 170µs align 1572864 pre 402µs on 701µs post 660µs diff 170µs # --> 4 MB erase block align 32768 pre 389µs on 678µs post 640µs diff 164µs align 24576 pre 386µs on 670µs post 641µs diff 157µs align 16384 pre 391µs on 680µs post 641µs diff 164µs align 12288 pre 535µs on 538µs post 496µs diff 22.9µs align 8192 pre 386µs on 676µs post 646µs diff 160µs align 6144 pre 460µs on 459µs post 422µs diff 17.8µs align 4096 pre 533µs on 532µs post 495µs diff 17.9µs # --> 8 KB page size # linear access in one 4MB erase block: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 4MiB 12M/s 2MiB 10.5M/s 1MiB 10.4M/s 512KiB 10.5M/s 256KiB 9.93M/s 128KiB 10.2M/s 64KiB 10.1M/s 32KiB 6.79M/s 16KiB 4.44M/s # random access, almost as fast: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=1 --random 4MiB 8.28M/s 2MiB 8.15M/s 1MiB 8.24M/s 512KiB 8.12M/s 256KiB 8.15M/s 128KiB 8.31M/s 64KiB 8.3M/s 32KiB 6.71M/s 16KiB 4.35M/s # across 4 erase blocks, still fast: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=4 --random 4MiB 10.9M/s 2MiB 7.1M/s 1MiB 9.77M/s 512KiB 9.71M/s 256KiB 9.65M/s 128KiB 9.45M/s 64KiB 9.37M/s 32KiB 6.5M/s 16KiB 4.2M/s # 8 erase blocks, very slow: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=8 --random 4MiB 9.39M/s 2MiB 3.57M/s 1MiB 2M/s ... # 6 erase blocks, very slow: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=6 --random 4MiB 9.38M/s 2MiB 4.47M/s 1MiB 2M/s ^C # 5 erase blocks, fast: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=5 --random 4MiB 8.7M/s 2MiB 10.5M/s 1MiB 10.4M/s 512KiB 10.4M/s 256KiB 10.3M/s 128KiB 10.2M/s 64KiB 9.99M/s 32KiB 6.44M/s 16KiB 4.2M/s # page size! 8KiB 1.62M/s 4KiB 803K/s 2KiB 396K/s 1KiB 189K/s 512B 97B/s # 5 erase blocks linear, same thing but slightly faster: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=5 --blocksize=512 4MiB 5.98M/s 2MiB 9.52M/s 1MiB 9.41M/s 512KiB 9.45M/s 256KiB 9.35M/s 128KiB 9.2M/s 64KiB 9.1M/s 32KiB 6.47M/s 16KiB 4.1M/s 8KiB 2.15M/s 4KiB 1.23M/s 2KiB 663K/s 1KiB 340K/s # 6 erase blocks linear, also slow: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --open-au-nr=6 --blocksize=512 4MiB 8.79M/s 2MiB 3.62M/s 1MiB 1.94M/s ^C

14 years, 6 months

1
0
0 0

Re: [Flashbench] Promotional Usb price

by Cngking

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14 years, 6 months

1
0
0 0

Re: [Flashbench] Sandisk Class 4

by Arnd Bergmann

On Friday 05 August 2011, Arnd Bergmann wrote: > This patch adds board support for the DEVIXP, the MICCPT, and the > MIC256, which are three IXP425 based boards produced by OMICRON > electronics, GmbH. > > Signed-off-by: Richard Cochran <richard.cochran(a)omicron.at> Pulled, finally. Thanks for your patience, Arnd

14 years, 7 months

1
0
0 0

Re: [Flashbench] Transcend SDHC CL6 16GB SD Flash

by Arnd Bergmann

On Wednesday 21 September 2011, David Yip wrote: > Ok, here is the result: Cc'd the mailing list. Thanks for the update, I'm adding this to the wiki now. Arnd > vpcf1 ~ # head /sys/block/mmcblk0/device/{cid,csd,scr,*rev,*id,name,serial} > > ==> /sys/block/mmcblk0/device/cid <== > 744a45534443202000000004c000b700 > > ==> /sys/block/mmcblk0/device/csd <== > 400e00325b59000077957f800a400000 > > ==> /sys/block/mmcblk0/device/scr <== > 0235800000000000 > > ==> /sys/block/mmcblk0/device/fwrev <== > 0x0 > > ==> /sys/block/mmcblk0/device/hwrev <== > 0x0 > > ==> /sys/block/mmcblk0/device/cid <== > 744a45534443202000000004c000b700 > > ==> /sys/block/mmcblk0/device/manfid <== > 0x000074 > > ==> /sys/block/mmcblk0/device/oemid <== > 0x4a45 > > ==> /sys/block/mmcblk0/device/name <== > SDC > > ==> /sys/block/mmcblk0/device/serial <== > 0x000004c0 > > vpcf1 ~ # fdisk -lu /dev/mmcblk0 > > Disk /dev/mmcblk0: 16.1 GB, 16050552832 bytes > 255 heads, 63 sectors/track, 1951 cylinders, total 31348736 sectors > Units = sectors of 1 * 512 = 512 bytes > Sector size (logical/physical): 512 bytes / 512 bytes > I/O size (minimum/optimal): 512 bytes / 512 bytes > Disk identifier: 0x000d6d26 > > Device Boot Start End Blocks Id System > /dev/mmcblk0p1 8192 31342591 15667200 83 Linux > > > vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5 > --random --blocksize=512 --erasesize=$[4 * > 1024 * 1024] /dev/mmcblk0 > 4MiB 7.45M/s > 2MiB 6.61M/s > 1MiB 7.59M/s > 512KiB 7.63M/s > 256KiB 7.52M/s > 128KiB 7.43M/s > 64KiB 7.35M/s > 32KiB 5.56M/s > 16KiB 3.68M/s > 8KiB 1.49M/s > 4KiB 750K/s > 2KiB 366K/s > 1KiB 185K/s > 512B 93.3K/s > vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5 > --random --blocksize=1024 --erasesize=$[4 * > 1024 * 1024] /dev/mmcblk0 > 4MiB 8.36M/s > 2MiB 8.34M/s > 1MiB 8.3M/s > 512KiB 8.27M/s > 256KiB 8.22M/s > 128KiB 8.07M/s > 64KiB 7.89M/s > 32KiB 5.47M/s > 16KiB 3.56M/s > 8KiB 1.46M/s > 4KiB 739K/s > 2KiB 361K/s > 1KiB 176K/s > vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5 > --random --blocksize=2048 --erasesize=$[4 * > 1024 * 1024] /dev/mmcblk0 > 4MiB 7.07M/s > 2MiB 7.02M/s > 1MiB 6.99M/s > 512KiB 6.95M/s > 256KiB 6.94M/s > 128KiB 6.83M/s > 64KiB 6.67M/s > 32KiB 5.52M/s > 16KiB 3.66M/s > 8KiB 1.48M/s > 4KiB 734K/s > 2KiB 367K/s > vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5 > --random --blocksize=4096 --erasesize=$[4 * > 1024 * 1024] /dev/mmcblk0 > 4MiB 7.36M/s > 2MiB 6.96M/s > 1MiB 6.99M/s > 512KiB 6.95M/s > 256KiB 6.92M/s > 128KiB 6.82M/s > 64KiB 6.67M/s > 32KiB 5.49M/s > 16KiB 3.66M/s > 8KiB 1.48M/s > 4KiB 733K/s > vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5 > --random --blocksize=8192 --erasesize=$[4 * > 1024 * 1024] /dev/mmcblk0 > 4MiB 4.05M/s > 2MiB 7.05M/s > 1MiB 6.98M/s > 512KiB 6.96M/s > 256KiB 6.91M/s > 128KiB 6.76M/s > 64KiB 6.59M/s > 32KiB 5.42M/s > 16KiB 2.63M/s > 8KiB 1.46M/s > > > Hope they are what you need : ) It's enough, yes. The blocksize argument actually doesn't really affect anything, except how many tests are run -- with blocksize=8192 it just stops earlier than with blocksize=1024. What I normally need is the result of one run with --nr-open-au just after the threshold, i.e 6 in this case. Since you already had those before, it's fine. > > On Wed, Sep 21, 2011 at 2:45 AM, Arnd Bergmann <arnd.bergmann(a)linaro.org>wrote: > > > On Tuesday 20 September 2011, David Yip wrote: > > > Hi Arnd, > > > > > > I did few tests of Transcend SDHC CL6 16GB SD Flash. > > > > > http://www.picstop.co.uk/media/catalog/product/cache/1/image/5e06319eda06f0… > > > > > > The erase size block is 4MB, I *believe*. > > > > Hi David, > > > > Yes, this card is pretty much standard, 4MB erase blocks, 5 open > > simultaneously. > > I've added it to the wiki, but it would be nice if you could provide the > > remaining data, similar to the commands I posted in > > http://lists.linaro.org/pipermail/flashbench-results/2011-March/000039.html > > > > For a simple card like this, doing a "flashbench -a --blocksize=1024" > > test should show the erase block size very clearly, so you don't need > > to do all the tests. I would also strongly recommend not scripting > > around flashbench but doing it one run at a time, which is much > > faster (you can kill it as soon as you see that it's clearly within > > the pathological path of the --open-au test) and does not wear out > > the card that much. For the number of open erase blocks, the only > > thing that matters really is the highest number that is fast, followed > > by one after that which is slow. > > > > What I want to add to the wiki along with this is > > > > - complete identification (from /sys/block/mmcblk0/device/* on SD/mmc > > or hdparm -I on CF/ATA) > > - exact size (from /proc/partitions or fdisk -lu) > > - page size (do one fast test run with --blocksize=512 to try all > > block size) > > > > I'd definitely like to see more results, especially if you have other > > SSDs or USB drives. It would also be nice to post the results inline > > in the mail instead of an attachment and to take > > flashbench-results(a)lists.linaro.org on Cc: so they end up in the > > online archive. > > > > Thanks, > > > > Arnd > > >

14 years, 7 months

1
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0 0

Supertalent USB3.0 Express DUO 8GB

by arnd＠arndb.de

arnd@wuerfel:~/flashbench$ grep sdd /proc/partitions 8 48 7684096 sdd arnd@wuerfel:~/flashbench$ factor 7684096 7684096: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 7 67 arnd@wuerfel:~/flashbench$ sudo dosfsck /dev/sdd dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN /dev/sdd: 0 files, 1/1917275 clusters arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdd --blocksize=1024 align 1073741824 pre 680µs on 995µs post 746µs diff 282µs align 536870912 pre 724µs on 992µs post 794µs diff 233µs align 268435456 pre 743µs on 993µs post 792µs diff 225µs align 134217728 pre 737µs on 996µs post 791µs diff 232µs align 67108864 pre 736µs on 991µs post 802µs diff 222µs align 33554432 pre 733µs on 993µs post 762µs diff 245µs align 16777216 pre 736µs on 991µs post 795µs diff 225µs align 8388608 pre 731µs on 994µs post 777µs diff 240µs align 4194304 pre 735µs on 780µs post 789µs diff 18µs align 2097152 pre 739µs on 763µs post 763µs diff 12.6µs align 1048576 pre 744µs on 747µs post 763µs diff -6809ns align 524288 pre 740µs on 762µs post 781µs diff 1.25µs align 262144 pre 737µs on 780µs post 762µs diff 30.6µs align 131072 pre 735µs on 776µs post 789µs diff 14.4µs align 65536 pre 740µs on 780µs post 808µs diff 6.1µs align 32768 pre 736µs on 804µs post 805µs diff 33.1µs align 16384 pre 740µs on 825µs post 823µs diff 43.5µs align 8192 pre 735µs on 950µs post 792µs diff 187µs align 4096 pre 793µs on 864µs post 742µs diff 96.2µs align 2048 pre 792µs on 761µs post 761µs diff -15180n arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdd --blocksize=3072 align 805306368 pre 667µs on 1.01ms post 773µs diff 294µs align 402653184 pre 773µs on 1.02ms post 774µs diff 249µs align 201326592 pre 773µs on 1.02ms post 772µs diff 249µs align 100663296 pre 774µs on 1.02ms post 773µs diff 247µs align 50331648 pre 775µs on 1.03ms post 776µs diff 251µs align 25165824 pre 776µs on 1.02ms post 772µs diff 250µs align 12582912 pre 771µs on 774µs post 773µs diff 2.36µs align 6291456 pre 773µs on 768µs post 775µs diff -5971ns align 3145728 pre 775µs on 772µs post 771µs diff -1302ns align 1572864 pre 769µs on 772µs post 772µs diff 1.65µs align 786432 pre 771µs on 777µs post 770µs diff 6.66µs align 393216 pre 772µs on 776µs post 775µs diff 2.65µs align 196608 pre 768µs on 774µs post 773µs diff 3.11µs align 98304 pre 767µs on 768µs post 773µs diff -1781ns align 49152 pre 774µs on 775µs post 764µs diff 6.2µs align 24576 pre 776µs on 916µs post 775µs diff 141µs align 12288 pre 774µs on 793µs post 767µs diff 22.6µs align 6144 pre 794µs on 773µs post 911µs diff -78786n arnd@wuerfel:~/flashbench$ ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=512 --open-au-nr=1 8MiB 21.9M/s 4MiB 21.1M/s 2MiB 21.3M/s 1MiB 21.4M/s 512KiB 21.3M/s 256KiB 21.2M/s 128KiB 21.1M/s 64KiB 21.3M/s 32KiB 21.4M/s 16KiB 20.9M/s 8KiB 15.8M/s 4KiB 10.3M/s 2KiB 5.46M/s 1KiB 2.72M/s 512B 1.36M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=512 --open-au-nr=1 --random 8MiB 21.9M/s 4MiB 21.3M/s 2MiB 12.2M/s 1MiB 7.39M/s 512KiB 5.99M/s 256KiB 5.26M/s 128KiB 4.99M/s 64KiB 4.75M/s 32KiB 4.44M/s 16KiB 3.42M/s 8KiB 1.5M/s 4KiB 1.04M/s 2KiB 438K/s 1KiB 225K/s 512B 115K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=4096 --open-au-nr=4 8MiB 21.5M/s 4MiB 21.4M/s 2MiB 21.3M/s 1MiB 21.2M/s 512KiB 21M/s 256KiB 20.5M/s 128KiB 19.5M/s 64KiB 17.8M/s 32KiB 15.3M/s 16KiB 9.7M/s 8KiB 1.09M/s 4KiB 493K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=16384 --open-au-nr=5 8MiB 21.6M/s 4MiB 16.5M/s 2MiB 14.7M/s 1MiB 13.9M/s 512KiB 13.1M/s 256KiB 12.2M/s 128KiB 11.5M/s 64KiB 10.8M/s 32KiB 9.74M/s 16KiB 6.62M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=16384 --open-au-nr=6 8MiB 21.5M/s 4MiB 14.3M/s 2MiB 12.2M/s 1MiB 11.3M/s 512KiB 10.7M/s 256KiB 9.93M/s 128KiB 9.42M/s 64KiB 8.91M/s 32KiB 8M/s 16KiB 4.94M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=16384 --open-au-nr=8 8MiB 21.5M/s 4MiB 12.3M/s 2MiB 10.1M/s 1MiB 9.16M/s 512KiB 8.57M/s 256KiB 6.23M/s 128KiB 7.62M/s 64KiB 7.24M/s 32KiB 5.34M/s 16KiB 2.79M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=16384 --open-au-nr=16 8MiB 21.3M/s 4MiB 10.1M/s 2MiB 5.4M/s 1MiB 3.7M/s 512KiB 3.05M/s 256KiB 3.15M/s 128KiB 3.04M/s 64KiB 1.95M/s 32KiB 1.64M/s 16KiB 972K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[8*1024*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=20 [sudo] password for arnd: 8MiB 21.6M/s 4MiB 10.6M/s 2MiB 4.22M/s 1MiB 3.38M/s 512KiB 3.15M/s 256KiB 2.6M/s 128KiB 2.93M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[8*1024*1024] /dev/sdd --offset[24 * 1024* 1024] --open-au-nr=32 8MiB 21.4M/s 4MiB 6.49M/s 2MiB 3.33M/s 1MiB 2.78M/s 512KiB 2.25M/s 256KiB 2.09M/s 128KiB 2.23M/s 64KiB 1.2M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[512*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=32 [sudo] password for arnd: 512KiB 469K/s 256KiB 318K/s 128KiB 124K/s 64KiB 69.2K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[512*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=17 512KiB 444K/s 256KiB 410K/s 128KiB 403K/s 64KiB 400K/s 32KiB 397K/s 16KiB 389K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=8388608 /dev/sdd -- blocksize=16384 --open-au-nr=16 --random 8MiB 21.6M/s 4MiB 10.2M/s 2MiB 3.68M/s 1MiB 2.82M/s 512KiB 1.55M/s 256KiB 1.81M/s 128KiB 2.43M/s 64KiB 1.12M/s 32KiB 685K/s 16KiB 334K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[8*1024*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=17 [sudo] password for arnd: 8MiB 21.7M/s 4MiB 9.06M/s 2MiB 3.6M/s 1MiB 2.57M/s 512KiB 1.28M/s 256KiB 1.77M/s 128KiB 2.05M/s 64KiB 1.11M/s 32KiB 693K/s 16KiB 364K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[8*1024*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=18 [sudo] password for arnd: 8MiB 18.6M/s 4MiB 8.99M/s 2MiB 3.4M/s 1MiB 2.13M/s 512KiB 1.93M/s 256KiB 2.33M/s 128KiB 1.24M/s 64KiB 1.07M/s 32KiB 681K/s 16KiB 335K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[512*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=18 [sudo] password for arnd: 512KiB 442K/s 256KiB 407K/s 128KiB 127K/s 64KiB 82.5K/s 32KiB 43.3K/s 16KiB 22.6K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[512*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=17 [sudo] password for arnd: 512KiB 418K/s 256KiB 407K/s 128KiB 400K/s 64KiB 397K/s 32KiB 394K/s 16KiB 386K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=17 1MiB 915K/s 512KiB 877K/s 256KiB 853K/s 128KiB 837K/s 64KiB 828K/s 32KiB 816K/s 16KiB 313K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] /dev/sdd --offset=$[24 * 1024* 1024] --open-au-nr=18 1MiB 865K/s 512KiB 872K/s 256KiB 370K/s 128KiB 704K/s 64KiB 96.5K/s 32KiB 724K/s 16KiB 23K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] /dev/sdd --offset=$[25 * 1024* 1024] --open-au-nr=18 [sudo] password for arnd: 1MiB 21.2M/s 512KiB 622K/s 256KiB 386K/s 128KiB 182K/s 64KiB 88.5K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] /dev/sdd --offset=$[25 * 1024* 1024] --open-au-nr=16 [sudo] password for arnd: 1MiB 21.3M/s 512KiB 20.2M/s 256KiB 18.9M/s 128KiB 18M/s 64KiB 16.4M/s 32KiB 480K/s 16KiB 351K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] /dev/sdd --offset=$[25 * 1024* 1024] --open-au-nr=17 1MiB 21.1M/s 512KiB 825K/s 256KiB 338K/s 128KiB 198K/s 64KiB 97.2K/s 32KiB 45.3K/s

14 years, 7 months

1
0
0 0

Kingston SD6 4GB SDHC (2010), "PH" controller

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 2750485344344742207c107ae600a900 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d7f7f800a400000 ==> /sys/block/mmcblk0/device/date <== 09/2010 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x2 ==> /sys/block/mmcblk0/device/manfid <== 0x000027 ==> /sys/block/mmcblk0/device/name <== SD4GB ==> /sys/block/mmcblk0/device/oemid <== 0x5048 ("PH") ==> /sys/block/mmcblk0/device/scr <== 0235000001000000 ==> /sys/block/mmcblk0/device/serial <== 0x7c107ae6 ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SD4GB MODALIAS=mmc:block 179 0 3866624 mmcblk0 179 1 3866593 mmcblk0p1 arnd@klappe2:~$ factor 3866624 3866624: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 59 arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024] --open-au-nr=2 4MiB 4.9M/s 2MiB 4.13M/s 1MiB 1.76M/s 512KiB 841K/s 256KiB 414K/s 128KiB 206K/s 64KiB 103K/s 32KiB 51.5K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024] --open-au-nr=1 4MiB 3.59M/s 2MiB 3.56M/s 1MiB 2.32M/s 512KiB 2.31M/s 256KiB 2.31M/s 128KiB 3.51M/s 64KiB 7.82M/s 32KiB 6.99M/s 16KiB 6.02M/s 8KiB 3.64M/s 4KiB 1.34M/s 2KiB 548K/s 1KiB 8.4K/s (!!!) arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat /dev/mmcblk0 --blocksize=$[1024] --open-au-nr=1 --fat-nr=8 4MiB 2.11M/s 2.51M/s 7.66M/s 7.66M/s 7.75M/s 7.65M/s 7.84M/s 7.65M/s 2MiB 2.86M/s 2.53M/s 7.65M/s 7.65M/s 7.83M/s 7.64M/s 7.71M/s 7.7M/s 1MiB 2.59M/s 2.83M/s 7.66M/s 7.69M/s 7.65M/s 7.85M/s 7.9M/s 7.64M/s 512KiB 2.56M/s 2.55M/s 7.67M/s 7.68M/s 7.62M/s 7.75M/s 7.84M/s 7.68M/s 256KiB 2.83M/s 2.58M/s 7.67M/s 7.69M/s 7.87M/s 7.85M/s 7.66M/s 7.71M/s 128KiB 2.56M/s 2.88M/s 7.63M/s 7.65M/s 7.66M/s 7.67M/s 7.81M/s 7.66M/s 64KiB 2.58M/s 2.82M/s 7.67M/s 7.66M/s 7.69M/s 7.82M/s 7.67M/s 7.69M/s 32KiB 2.37M/s 2.31M/s 6.82M/s 6.83M/s 6.97M/s 6.9M/s 6.95M/s 6.86M/s 16KiB 2.03M/s 2.09M/s 5.99M/s 6.02M/s 5.97M/s 6.05M/s 6.01M/s 6.15M/s 8KiB 1.44M/s 1.53M/s 3.68M/s 3.64M/s 3.6M/s 3.62M/s 3.63M/s 3.63M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat /dev/mmcblk0 --blocksize=$[1024] --open-au-nr=1 --fat-nr=3 --random 4MiB 2.57M/s 2.82M/s 4.24M/s 2MiB 2.57M/s 2.8M/s 1.96M/s 1MiB 2.57M/s 2.85M/s 1.76M/s 512KiB 2.55M/s 2.56M/s 444K/s 256KiB 2.57M/s 2.82M/s 244K/s 128KiB 2.34M/s 2.81M/s 164K/s 64KiB 2.34M/s 2.53M/s 157K/s 32KiB 2.18M/s 2.51M/s 85.2K/s 16KiB 1.76M/s 1.93M/s 42K/s 8KiB 1.42M/s 1.54M/s 4KiB 858K/s 841K/s 2KiB 440K/s 446K/s 1KiB 231K/s 229K/s

14 years, 7 months

1
0
0 0

Samsung Class 10 Full HD 8GB

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 1b534d303030303010047a97ac00b600 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003c1d7f800a400000 ==> /sys/block/mmcblk0/device/date <== 06/2011 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001b ==> /sys/block/mmcblk0/device/name <== 00000 ==> /sys/block/mmcblk0/device/oemid <== 0x534d ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x047a97ac ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=00000 MODALIAS=mmc:block arnd@klappe2:~$ sudo fdisk -lu /dev/mmcblk0 Disk /dev/mmcblk0: 8068 MB, 8068792320 bytes 249 heads, 36 sectors/track, 1758 cylinders, total 15759360 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/mmcblk0p1 8192 15759359 7875584 b W95 FAT32 arnd@klappe2:~$ factor $[8068792320 / 1024] 7879680: 2 2 2 2 2 2 2 2 2 2 3 3 3 3 5 19 arnd@klappe2:~$ factor $[8068792320 / 1024 / 1024 / 3] 2565: 3 3 3 5 19 align 12582912 pre 818µs on 1.12ms post 1.05ms diff 181µs align 8388608 pre 842µs on 1.12ms post 1.08ms diff 163µs align 6291456 pre 808µs on 1.08ms post 1.06ms diff 147µs align 4194304 pre 809µs on 1.13ms post 1.05ms diff 199µs align 3145728 pre 775µs on 1.07ms post 980µs diff 194µs align 2097152 pre 763µs on 1.06ms post 1.04ms diff 164µs align 1572864 pre 777µs on 1.05ms post 1ms diff 159µs align 1048576 pre 734µs on 1.03ms post 1.04ms diff 142µs align 786432 pre 731µs on 1.05ms post 1.04ms diff 162µs arnd@klappe2:~/git/flashbench$ sudo hexdump -C /dev/mmcblk0 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 000001b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 82 |................| 000001c0 03 00 0b f8 e4 d4 00 20 00 00 00 58 f0 00 00 00 |....... ...X....| 000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00000200 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00400000 eb 00 90 20 20 20 20 20 20 20 20 00 02 40 fc 10 |... ..@..| 00400010 02 00 00 00 00 f8 00 00 3f 00 ff 00 00 20 00 00 |........?.... ..| 00400020 00 58 f0 00 82 07 00 00 00 00 00 00 02 00 00 00 |.X..............| 00400030 01 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00400040 80 00 29 a9 3d 30 fc 4e 4f 20 4e 41 4d 45 20 20 |..).=0.NO NAME | 00400050 20 20 46 41 54 33 32 20 20 20 00 00 00 00 00 00 | FAT32 ......| 00400060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 004001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00400200 52 52 61 41 00 00 00 00 00 00 00 00 00 00 00 00 |RRaA............| 00400210 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 004003e0 00 00 00 00 72 72 41 61 ff ff ff ff 02 00 00 00 |....rrAa........| 004003f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00400400 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 004005f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00400600 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00400c00 eb 00 90 20 20 20 20 20 20 20 20 00 02 40 fc 10 |... ..@..| 00400c10 02 00 00 00 00 f8 00 00 3f 00 ff 00 00 20 00 00 |........?.... ..| 00400c20 00 58 f0 00 82 07 00 00 00 00 00 00 02 00 00 00 |.X..............| 00400c30 01 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00400c40 80 00 29 a9 3d 30 fc 4e 4f 20 4e 41 4d 45 20 20 |..).=0.NO NAME | 00400c50 20 20 46 41 54 33 32 20 20 20 00 00 00 00 00 00 | FAT32 ......| 00400c60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00400df0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00400e00 52 52 61 41 00 00 00 00 00 00 00 00 00 00 00 00 |RRaA............| 00400e10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00400fe0 00 00 00 00 72 72 41 61 ff ff ff ff 02 00 00 00 |....rrAa........| 00400ff0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00401000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 004011f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00401200 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 0061f800 f8 ff ff 0f ff ff ff 0f ff ff ff 0f 00 00 00 00 |................| 0061f810 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 0070fc00 f8 ff ff 0f ff ff ff 0f ff ff ff 0f 00 00 00 00 |................| 0070fc10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4 * 1024 * 1024] --blocksize=512 --open-au-nr=7 4MiB 10.7M/s 2MiB 10.7M/s 1MiB 10.7M/s 512KiB 10.6M/s 256KiB 10.6M/s 128KiB 10.4M/s 64KiB 10.2M/s 32KiB 6.69M/s 16KiB 4.3M/s 8KiB 1.75M/s 4KiB 874K/s 2KiB 432K/s 1KiB 215K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024 * 16] --open-au-nr=8 4MiB 9.45M/s 2MiB 4.85M/s 1MiB 2.12M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024 * 16] --open-au-nr=6 4MiB 8.99M/s 2MiB 7.82M/s 1MiB 10.6M/s 512KiB 10.5M/s 256KiB 10.5M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024 * 16] --open-au-nr=1 --random 4MiB 9.59M/s 2MiB 4.88M/s 1MiB 9.51M/s 512KiB 4.88M/s 256KiB 9.63M/s 128KiB 4.88M/s 64KiB 9.45M/s 32KiB 3.82M/s 16KiB 4.33M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=$[1024 * 16] --open-au-nr=7 --random 4MiB 8.89M/s 2MiB 4.64M/s 1MiB 8.77M/s 512KiB 4.64M/s 256KiB 8.64M/s 128KiB 4.59M/s 64KiB 8.37M/s 32KiB 3.72M/s 16KiB 4.03M/s

14 years, 7 months

1
0
0 0

CnMemory 4GB

by Arnd Bergmann

arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdd --blocksize=1024 align 536870912 pre 1.12ms on 1.51ms post 1.46ms diff 219µs align 268435456 pre 1.1ms on 1.52ms post 1.44ms diff 241µs align 134217728 pre 1.19ms on 1.54ms post 1.44ms diff 226µs align 67108864 pre 1.19ms on 1.53ms post 1.44ms diff 216µs align 33554432 pre 1.17ms on 1.52ms post 1.44ms diff 208µs align 16777216 pre 1.17ms on 1.55ms post 1.44ms diff 245µs align 8388608 pre 1.21ms on 1.57ms post 1.48ms diff 228µs align 4194304 pre 1.21ms on 1.53ms post 1.42ms diff 209µs align 2097152 pre 1.22ms on 1.58ms post 1.44ms diff 252µs align 1048576 pre 1.19ms on 1.56ms post 1.44ms diff 248µs align 524288 pre 1.23ms on 1.54ms post 1.44ms diff 208µs align 262144 pre 1.19ms on 1.52ms post 1.46ms diff 189µs align 131072 pre 1.21ms on 1.55ms post 1.45ms diff 221µs align 65536 pre 1.19ms on 1.48ms post 1.44ms diff 164µs align 32768 pre 1.19ms on 1.51ms post 1.44ms diff 192µs align 16384 pre 1.19ms on 1.52ms post 1.46ms diff 199µs align 8192 pre 1.21ms on 1.54ms post 1.46ms diff 205µs align 4096 pre 1.35ms on 1.32ms post 1.3ms diff -6829ns align 2048 pre 1.42ms on 1.42ms post 1.37ms diff 27.7µs arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdd --blocksize=3072 align 402653184 pre 1.24ms on 1.71ms post 1.52ms diff 336µs align 201326592 pre 1.32ms on 1.69ms post 1.51ms diff 279µs align 100663296 pre 1.32ms on 1.69ms post 1.52ms diff 278µs align 50331648 pre 1.31ms on 1.69ms post 1.51ms diff 280µs align 25165824 pre 1.32ms on 1.69ms post 1.52ms diff 277µs align 12582912 pre 1.31ms on 1.69ms post 1.51ms diff 283µs align 6291456 pre 1.32ms on 1.73ms post 1.51ms diff 315µs align 3145728 pre 1.34ms on 1.73ms post 1.53ms diff 294µs align 1572864 pre 1.35ms on 1.6ms post 1.51ms diff 172µs align 786432 pre 1.35ms on 1.6ms post 1.51ms diff 169µs align 393216 pre 1.35ms on 1.6ms post 1.51ms diff 171µs align 196608 pre 1.35ms on 1.59ms post 1.51ms diff 155µs align 98304 pre 1.35ms on 1.55ms post 1.52ms diff 120µs align 49152 pre 1.34ms on 1.58ms post 1.52ms diff 159µs align 24576 pre 1.33ms on 1.59ms post 1.53ms diff 155µs align 12288 pre 1.46ms on 1.46ms post 1.34ms diff 62.3µs align 6144 pre 1.39ms on 1.35ms post 1.55ms diff -115362 arnd@wuerfel:~/flashbench$ cat /proc/partitions major minor #blocks name 8 48 3879936 sdd 8 49 3875840 sdd1 arnd@wuerfel:~/flashbench$ factor 3879936 3879936: 2 2 2 2 2 2 2 2 2 2 3 3 421 arnd@wuerfel:~/flashbench$ echo $[3879936 / 421 / 3] 3072 arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=3072 --open-au-nr=1 /dev/sdd 3MiB 7.07M/s 1.5MiB 7.06M/s 768KiB 7.04M/s 384KiB 6.82M/s 192KiB 6.92M/s 96KiB 7.07M/s 48KiB 6.39M/s 24KiB 5.13M/s 12KiB 3.61M/s 6KiB 2.49M/s 3KiB 1.61M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=3072 --open-au-nr=1 /dev/sdd --random 3MiB 7.13M/s 1.5MiB 6.81M/s 768KiB 6.7M/s 384KiB 6.52M/s 192KiB 6.17M/s 96KiB 6.59M/s 48KiB 5.64M/s 24KiB 3.75M/s 12KiB 2.16M/s 6KiB 981K/s 3KiB 522K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=3072 --open-au-nr=1 /dev/sdd 3MiB 7.07M/s 1.5MiB 7.06M/s 768KiB 7.04M/s 384KiB 6.82M/s 192KiB 6.92M/s 96KiB 7.07M/s 48KiB 6.39M/s 24KiB 5.13M/s 12KiB 3.61M/s 6KiB 2.49M/s 3KiB 1.61M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=3072 --open-au-nr=1 /dev/sdd --random 3MiB 7.13M/s 1.5MiB 6.81M/s 768KiB 6.7M/s 384KiB 6.52M/s 192KiB 6.17M/s 96KiB 6.59M/s 48KiB 5.64M/s 24KiB 3.75M/s 12KiB 2.16M/s 6KiB 981K/s 3KiB 522K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=$[4*3072] --open-au-nr=4 /dev/sdd --random 3MiB 6.96M/s 1.5MiB 4.16M/s 768KiB 6.59M/s 384KiB 6.4M/s 192KiB 6.34M/s 96KiB 6.62M/s 48KiB 5.72M/s 24KiB 3.72M/s 12KiB 2.14M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=$[4*3072] --open-au-nr=8 /dev/sdd --random 3MiB 4.98M/s 1.5MiB 1.92M/s 768KiB 1.05M/s ^Carnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] - locksize=$[4*3072] --open-au-nr=5 /dev/sdd --random 3MiB 5.38M/s 1.5MiB 4.28M/s 768KiB 6.45M/s 384KiB 6.39M/s 192KiB 6.26M/s 96KiB 6.52M/s 48KiB 5.62M/s 24KiB 3.72M/s 12KiB 2.15M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=$[4*3072] --open-au-nr=6 /dev/sdd --random 3MiB 5.4M/s 1.5MiB 1.96M/s 768KiB 1.05M/s 384KiB 567K/s 192KiB 406K/s 96KiB 465K/s 48KiB 344K/s 24KiB 322K/s 12KiB 168K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=$[4*3072] --open-au-nr=5 /dev/sdd 3MiB 4.9M/s 1.5MiB 6.76M/s 768KiB 6.61M/s 384KiB 6.34M/s 192KiB 6.47M/s 96KiB 6.6M/s 48KiB 5.93M/s 24KiB 4M/s 12KiB 2.78M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[3072 * 1024] -- blocksize=$[4*3072] --open-au-nr=6 /dev/sdd 3MiB 5.46M/s 1.5MiB 1.81M/s 768KiB 1.05M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024 * 1024] - locksize=$[1024] --open-au-nr=5 /dev/sdd 1MiB 6.75M/s 512KiB 6.54M/s 256KiB 6.44M/s 128KiB 6.03M/s 64KiB 6.21M/s 32KiB 5.27M/s 16KiB 4.02M/s 8KiB 2.39M/s 4KiB 1.24M/s 2KiB 667K/s 1KiB 389K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024 * 1024] -- blocksize=$[16*1024] --open-au-nr=6 /dev/sdd 1MiB 1.5M/s 512KiB 723K/s 256KiB 426K/s arnd@wuerfel:~/flashbench$ sudo dd if=/dev/zero of=/dev/sdd bs=3M seek=20 count=50 oflag=direct 50+0 records in 50+0 records out 157286400 bytes (157 MB) copied, 22.6699 s, 6.9 MB/s arnd@wuerfel:~/flashbench$ sudo dd of=/dev/zero if=/dev/sdd bs=3M seek=20 count=50 iflag=direct 50+0 records in 50+0 records out 157286400 bytes (157 MB) copied, 10.7294 s, 14.7 MB/s

14 years, 8 months

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