Flashbench-results September 2016

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by HR

8 years, 2 months

Samsung EVO micro-SDHC 16GB MB-MP16DA/AM

by Andrew Bradford

andrew@piglet:~/git/flashbench$ head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 1b534d3030303030105d4e555800f900 ==> /sys/block/mmcblk0/device/csd <== 400e00325b590000775d7f800a400000 ==> /sys/block/mmcblk0/device/date <== 09/2015 ==> /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 <== 0235800300000000 ==> /sys/block/mmcblk0/device/serial <== 0x5d4e5558 ==> /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 root@piglet:~# cat /sys/kernel/debug/mmc0/* 2>/dev/null | grep -v ^$ 33000000 clock: 33000000 Hz actual clock: 33000000 Hz vdd: 21 (3.3 ~ 3.4 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 2 (4 bits) timing spec: 2 (sd high-speed) signal voltage: 0 (3.30 V) driver type: 0 (driver type B) andrew@piglet:~/git/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 14.9 GiB, 16021192704 bytes, 31291392 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 Disklabel type: dos Disk identifier: 0x00000000 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 8192 31291391 31283200 14.9G c W95 FAT32 (LBA) andrew@piglet:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=100 align 4294967296 pre 648µs on 694µs post 492µs diff 124µs align 2147483648 pre 656µs on 693µs post 496µs diff 117µs align 1073741824 pre 614µs on 663µs post 501µs diff 105µs align 536870912 pre 630µs on 665µs post 503µs diff 97.8µs align 268435456 pre 608µs on 660µs post 491µs diff 110µs align 134217728 pre 613µs on 664µs post 495µs diff 110µs align 67108864 pre 618µs on 665µs post 500µs diff 106µs align 33554432 pre 616µs on 659µs post 484µs diff 109µs align 16777216 pre 627µs on 669µs post 512µs diff 99.3µs align 8388608 pre 624µs on 657µs post 504µs diff 93.2µs align 4194304 pre 608µs on 646µs post 501µs diff 91.9µs align 2097152 pre 619µs on 668µs post 504µs diff 107µs align 1048576 pre 618µs on 665µs post 498µs diff 107µs align 524288 pre 616µs on 641µs post 503µs diff 81.7µs align 262144 pre 609µs on 657µs post 494µs diff 105µs align 131072 pre 607µs on 645µs post 487µs diff 97.7µs align 65536 pre 609µs on 654µs post 491µs diff 104µs align 32768 pre 608µs on 648µs post 488µs diff 101µs align 16384 pre 617µs on 653µs post 490µs diff 99.7µs align 8192 pre 499µs on 500µs post 483µs diff 8.51µs align 4096 pre 544µs on 547µs post 530µs diff 9.51µs align 2048 pre 568µs on 570µs post 553µs diff 9.31µs ## No clear indication of eraseblock size but pages are probably 16 kiB. andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --open-au-nr=1 4MiB 13.2M/s 2MiB 14M/s 1MiB 13.5M/s 512KiB 13.8M/s 256KiB 14M/s 128KiB 14.2M/s 64KiB 14.5M/s 32KiB 11.2M/s 16KiB 8.81M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --open-au-nr=10 4MiB 10.6M/s 2MiB 7.8M/s 1MiB 7.64M/s 512KiB 7.59M/s 256KiB 7.51M/s 128KiB 7.09M/s 64KiB 6.65M/s 32KiB 5.18M/s 16KiB 2.92M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --open-au-nr=5 4MiB 7.15M/s 2MiB 12.6M/s 1MiB 14.6M/s 512KiB 14.5M/s 256KiB 13.8M/s 128KiB 13.2M/s 64KiB 11.3M/s 32KiB 8.73M/s 16KiB 5.83M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --open-au-nr=8 4MiB 8.06M/s 2MiB 7.65M/s 1MiB 7.64M/s 512KiB 7.58M/s 256KiB 7.44M/s 128KiB 7.23M/s ^C andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --open-au-nr=7 4MiB 8.95M/s 2MiB 13.4M/s 1MiB 14.4M/s 512KiB 14.4M/s 256KiB 13.7M/s 128KiB 13M/s ^C ## 7 open-au non-random andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --random --open-au-nr=1 4MiB 14.7M/s 2MiB 15.4M/s 1MiB 14.4M/s 512KiB 15.4M/s 256KiB 14.5M/s 128KiB 14.9M/s 64KiB 14.5M/s 32KiB 11.6M/s 16KiB 8.15M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --random --open-au-nr=7 4MiB 14.8M/s 2MiB 14.7M/s 1MiB 14.6M/s 512KiB 14.4M/s 256KiB 14M/s 128KiB 13.1M/s 64KiB 11.8M/s 32KiB 8.44M/s 16KiB 5.29M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[4*1024*1024] --blocksize=$[16*1024] --random --open-au-nr=8 4MiB 9.44M/s 2MiB 7.47M/s 1MiB 7.63M/s 512KiB 7.61M/s 256KiB 7.44M/s ^C ## 7 open-au random, too. Not a bad little card. -Andrew

8 years, 3 months

Samsung PRO micro-SDHC 16GB MB-MG16E

by Andrew Bradford

andrew@piglet:~/git/flashbench$ head /sys/block/mmcblk0/device/* 2>/dev/null | grep -v ^$ ==> /sys/block/mmcblk0/device/block <== ==> /sys/block/mmcblk0/device/cid <== 1b534d303030303010f88257e100fa00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b590000773b7f800a404000 ==> /sys/block/mmcblk0/device/date <== 10/2015 ==> /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 <== 02b5800200000000 ==> /sys/block/mmcblk0/device/serial <== 0xf88257e1 ==> /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 root@piglet:~# cat /sys/kernel/debug/mmc0/* 2>/dev/null | grep -v ^$ 33000000 clock: 33000000 Hz actual clock: 33000000 Hz vdd: 21 (3.3 ~ 3.4 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 2 (4 bits) timing spec: 2 (sd high-speed) signal voltage: 0 (3.30 V) driver type: 0 (driver type B) andrew@piglet:~/git/flashbench$ sudo fdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 14.9 GiB, 16003366912 bytes, 31256576 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 Disklabel type: dos Disk identifier: 0x00000000 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 8192 31256575 31248384 14.9G c W95 FAT32 (LBA) andrew@piglet:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=100 align 4294967296 pre 398µs on 610µs post 398µs diff 212µs align 2147483648 pre 397µs on 617µs post 397µs diff 220µs align 1073741824 pre 397µs on 617µs post 398µs diff 220µs align 536870912 pre 397µs on 618µs post 397µs diff 221µs align 268435456 pre 396µs on 616µs post 397µs diff 220µs align 134217728 pre 372µs on 591µs post 398µs diff 206µs align 67108864 pre 388µs on 563µs post 350µs diff 194µs align 33554432 pre 390µs on 563µs post 351µs diff 193µs align 16777216 pre 349µs on 539µs post 351µs diff 189µs align 8388608 pre 346µs on 575µs post 400µs diff 203µs align 4194304 pre 343µs on 521µs post 343µs diff 178µs align 2097152 pre 342µs on 521µs post 344µs diff 178µs align 1048576 pre 343µs on 521µs post 344µs diff 177µs align 524288 pre 343µs on 521µs post 344µs diff 178µs align 262144 pre 343µs on 521µs post 343µs diff 178µs align 131072 pre 343µs on 520µs post 341µs diff 178µs align 65536 pre 343µs on 521µs post 343µs diff 178µs align 32768 pre 342µs on 519µs post 342µs diff 177µs align 16384 pre 343µs on 509µs post 342µs diff 166µs align 8192 pre 342µs on 342µs post 341µs diff -30ns align 4096 pre 344µs on 344µs post 343µs diff 709ns align 2048 pre 342µs on 342µs post 342µs diff 175ns ## 8 MiB eraseblocks, probably andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=1 8MiB 16.1M/s 4MiB 16.4M/s 2MiB 16.3M/s 1MiB 16.1M/s 512KiB 16.2M/s 256KiB 16M/s 128KiB 16M/s 64KiB 15.5M/s 32KiB 12.5M/s 16KiB 7.14M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=10 8MiB 16.4M/s 4MiB 16.5M/s 2MiB 16.3M/s 1MiB 16.3M/s 512KiB 16.2M/s 256KiB 16M/s 128KiB 15.9M/s 64KiB 15.6M/s 32KiB 11.8M/s 16KiB 6.73M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=20 8MiB 16.4M/s 4MiB 16.2M/s 2MiB 9.37M/s 1MiB 7.06M/s ^C andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=15 8MiB 16.3M/s 4MiB 15.8M/s 2MiB 9.87M/s 1MiB 7.01M/s 512KiB 4.77M/s 256KiB 2.94M/s ^C andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=12 8MiB 16.4M/s 4MiB 16.3M/s 2MiB 16.4M/s 1MiB 16.3M/s 512KiB 16.4M/s ^C andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --open-au-nr=14 8MiB 16.4M/s 4MiB 16.4M/s 2MiB 16.4M/s 1MiB 16.4M/s 512KiB 16.3M/s 256KiB 16.3M/s 128KiB 16.1M/s ^C ## 14 open-au andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --random --open-au-nr=1 8MiB 16.6M/s 4MiB 16.1M/s 2MiB 16.4M/s 1MiB 16.4M/s 512KiB 16.4M/s 256KiB 16.1M/s 128KiB 16.1M/s 64KiB 15.7M/s 32KiB 12.1M/s 16KiB 6.32M/s andrew@piglet:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --open-au --erasesize=$[8*1024*1024] --blocksize=$[16*1024] --random --open-au-nr=14 8MiB 16.4M/s 4MiB 16.4M/s 2MiB 16.3M/s 1MiB 16.4M/s 512KiB 16.3M/s 256KiB 16.2M/s 128KiB 16.1M/s 64KiB 15.8M/s 32KiB 12.4M/s 16KiB 6.56M/s ## 14 open-au random, too Not quite as good as the older top of the line Samsung controllers, but still quite good and clearly better than the "evo" version. -Andrew

8 years, 3 months

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Flashbench-results September 2016