Flashbench-results

flashbench-results@lists.linaro.org

15 participants
753 discussions

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 03534453553034478001d61d35009a00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001d8a7f800a404000 ==> /sys/block/mmcblk0/device/date <== 10/2009 ==> /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/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x01d61d35 Disk /dev/mmcblk0: 3965 MB, 3965190144 bytes 49 heads, 48 sectors/track, 3292 cylinders, total 7744512 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 7744511 3868160 b W95 FAT32 arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=30 align 402653184 pre 585Âµs on 836Âµs post 531Âµs diff 278Âµs align 268435456 pre 511Âµs on 556Âµs post 518Âµs diff 40.7Âµs align 201326592 pre 586Âµs on 883Âµs post 531Âµs diff 325Âµs align 134217728 pre 528Âµs on 595Âµs post 528Âµs diff 66.4Âµs align 100663296 pre 699Âµs on 929Âµs post 514Âµs diff 322Âµs align 67108864 pre 539Âµs on 604Âµs post 546Âµs diff 62.1Âµs align 50331648 pre 533Âµs on 642Âµs post 531Âµs diff 110Âµs align 33554432 pre 544Âµs on 601Âµs post 533Âµs diff 62.3Âµs align 25165824 pre 546Âµs on 645Âµs post 533Âµs diff 106Âµs align 16777216 pre 533Âµs on 606Âµs post 552Âµs diff 64Âµs align 12582912 pre 560Âµs on 654Âµs post 541Âµs diff 103Âµs align 8388608 pre 541Âµs on 624Âµs post 588Âµs diff 59.7Âµs align 6291456 pre 533Âµs on 627Âµs post 511Âµs diff 104Âµs align 4194304 pre 508Âµs on 593Âµs post 522Âµs diff 78.3Âµs align 3145728 pre 553Âµs on 641Âµs post 507Âµs diff 112Âµs align 2097152 pre 538Âµs on 604Âµs post 533Âµs diff 69.1Âµs align 1572864 pre 531Âµs on 586Âµs post 537Âµs diff 51.6Âµs align 1048576 pre 542Âµs on 603Âµs post 549Âµs diff 56.8Âµs align 786432 pre 520Âµs on 588Âµs post 535Âµs diff 59.9Âµs align 524288 pre 542Âµs on 598Âµs post 531Âµs diff 61.4Âµs align 393216 pre 520Âµs on 586Âµs post 535Âµs diff 59.1Âµs align 262144 pre 541Âµs on 604Âµs post 547Âµs diff 60Âµs align 196608 pre 526Âµs on 585Âµs post 533Âµs diff 55.1Âµs align 131072 pre 538Âµs on 596Âµs post 530Âµs diff 62.1Âµs align 98304 pre 526Âµs on 588Âµs post 536Âµs diff 57Âµs align 65536 pre 552Âµs on 602Âµs post 549Âµs diff 51.5Âµs align 49152 pre 519Âµs on 588Âµs post 538Âµs diff 59.7Âµs align 32768 pre 528Âµs on 586Âµs post 530Âµs diff 57.3Âµs align 24576 pre 522Âµs on 580Âµs post 526Âµs diff 55.6Âµs align 16384 pre 520Âµs on 584Âµs post 534Âµs diff 57.3Âµs arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=1 /dev/mmcblk0 3MiB 6.15M/s 1.5MiB 2.28M/s 768KiB 3.31M/s 384KiB 3M/s 192KiB 2.86M/s 96KiB 4.56M/s 48KiB 6.22M/s 24KiB 3.66M/s 12KiB 2.15M/s 6KiB 1.55M/s 3KiB 1.03M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=2 /dev/mmcblk0 3MiB 6.22M/s 1.5MiB 4.42M/s 768KiB 6.24M/s 384KiB 6.22M/s 192KiB 6.25M/s 96KiB 6.08M/s 48KiB 6.28M/s 24KiB 3.69M/s 12KiB 2.52M/s 6KiB 1.7M/s 3KiB 1.03M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=4 /dev/mmcblk0 3MiB 6.17M/s 1.5MiB 4.22M/s 768KiB 6.14M/s 384KiB 6.15M/s 192KiB 6.11M/s 96KiB 5.94M/s 48KiB 6.16M/s 24KiB 3.64M/s 12KiB 2.23M/s 6KiB 1.69M/s 3KiB 1.02M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=6 /dev/mmcblk0 3MiB 3.29M/s 1.5MiB 6.12M/s 768KiB 6.12M/s 384KiB 6.12M/s 192KiB 6.11M/s 96KiB 5.87M/s 48KiB 5.71M/s 24KiB 3.85M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=7 /dev/mmcblk0 3MiB 6.13M/s 1.5MiB 3.49M/s 768KiB 1.78M/s 384KiB 868K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=1 /dev/mmcblk0 --random 3MiB 3.26M/s 1.5MiB 2.11M/s 768KiB 2.21M/s 384KiB 1.7M/s 192KiB 1.66M/s 96KiB 1.63M/s 48KiB 1.62M/s 24KiB 1.05M/s 12KiB 571K/s 6KiB 339K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=3 /dev/mmcblk0 --random 3MiB 4.57M/s 1.5MiB 5.51M/s 768KiB 2.22M/s 384KiB 2.24M/s 192KiB 1.68M/s 96KiB 1.63M/s 48KiB 1.62M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=4 /dev/mmcblk0 --random 3MiB 3.53M/s 1.5MiB 6.03M/s 768KiB 2.23M/s 384KiB 2.24M/s 192KiB 1.69M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=6 /dev/mmcblk0 --random 3MiB 3.74M/s 1.5MiB 5.96M/s 768KiB 2.23M/s 384KiB 2.02M/s 192KiB 1.36M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --erasesize=$[8 * 512 *1024] /dev/mmcblk0 4MiB 2.45M/s 3.46M/s 3.49M/s 3.71M/s 6.05M/s 6.06M/s 2MiB 6.13M/s 6.03M/s 6.06M/s 6.14M/s 6.1M/s 6.06M/s 1MiB 6.16M/s 6.02M/s 6.05M/s 6.14M/s 6.06M/s 6.06M/s 512KiB 6.14M/s 6.02M/s 6.15M/s 6.13M/s 6.11M/s 6.06M/s 256KiB 6.1M/s 6.04M/s 6.12M/s 6.11M/s 6.08M/s 6.09M/s 128KiB 6.15M/s 5.94M/s 6.05M/s 6.07M/s 6.1M/s 6.08M/s 64KiB 6.17M/s 5.93M/s 6.14M/s 6.14M/s 6.07M/s 6.05M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[6 * 512 *1024] --blocksize=3072 --open-au-nr=7 /dev/mmcblk0 --random 3MiB 3.9M/s 1.5MiB 3.77M/s 768KiB 1.78M/s 384KiB 868K/s 192KiB 436K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --erasesize=$[6 * 512 *1024] --blocksize=3072 /dev/mmcblk0 --random 3MiB 3.3M/s 6.12M/s 3.05M/s 6.13M/s 6.13M/s 6.1M/s 1.5MiB 2.3M/s 2.7M/s 3.81M/s 2.71M/s 2.7M/s 2.7M/s 768KiB 1.68M/s 3M/s 2.98M/s 2.96M/s 2.98M/s 2.08M/s 384KiB 1.71M/s 1.71M/s 1.7M/s 1.7M/s 1.7M/s 1.69M/s 192KiB 1.71M/s 1.7M/s 1.36M/s 1.7M/s 1.69M/s 1.7M/s 96KiB 1.66M/s 1.67M/s 1.67M/s 1.67M/s 1.67M/s 1.66M/s 48KiB 1.67M/s 1.66M/s 1.68M/s 1.66M/s 1.67M/s 1.66M/s 24KiB 907K/s 1.08M/s 1.08M/s 1.07M/s 1.08M/s 1.04M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --erasesize=$[8 * 512 *1024] /dev/mmcblk0 4MiB 2.45M/s 3.46M/s 3.49M/s 3.71M/s 6.05M/s 6.06M/s 2MiB 6.13M/s 6.03M/s 6.06M/s 6.14M/s 6.1M/s 6.06M/s 1MiB 6.16M/s 6.02M/s 6.05M/s 6.14M/s 6.06M/s 6.06M/s 512KiB 6.14M/s 6.02M/s 6.15M/s 6.13M/s 6.11M/s 6.06M/s 256KiB 6.1M/s 6.04M/s 6.12M/s 6.11M/s 6.08M/s 6.09M/s 128KiB 6.15M/s 5.94M/s 6.05M/s 6.07M/s 6.1M/s 6.08M/s 64KiB 6.17M/s 5.93M/s 6.14M/s 6.14M/s 6.07M/s 6.05M/s 32KiB 5.38M/s 5.29M/s 5.39M/s 5.38M/s 5.36M/s 5.33M/s 16KiB 4.35M/s 4.32M/s 4.35M/s 4.34M/s 4.32M/s 4.18M/s

15 years, 1 month

Sandisk 4 GB microSD class 2, Jun 2007

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 035344535530344780200765b8007600 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900001e5c7f800a404000 ==> /sys/block/mmcblk0/device/date <== 06/2007 ==> /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/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235000000000000 ==> /sys/block/mmcblk0/device/serial <== 0x200765b8 Disk /dev/mmcblk0: 4075 MB, 4075290624 bytes 7 heads, 6 sectors/track, 189513 cylinders, total 7959552 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 7959551 3975680 b W95 FAT32 arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=200 align 805306368 pre 585µs on 685µs post 581µs diff 102µs align 536870912 pre 581µs on 656µs post 568µs diff 81.9µs align 402653184 pre 600µs on 681µs post 580µs diff 90.6µs align 268435456 pre 586µs on 677µs post 574µs diff 96.9µs align 201326592 pre 576µs on 677µs post 575µs diff 102µs align 134217728 pre 586µs on 684µs post 577µs diff 102µs align 100663296 pre 586µs on 679µs post 577µs diff 97.6µs align 67108864 pre 582µs on 676µs post 578µs diff 96.4µs align 50331648 pre 618µs on 716µs post 593µs diff 110µs align 33554432 pre 567µs on 684µs post 562µs diff 120µs align 25165824 pre 567µs on 583µs post 566µs diff 16.5µs align 16777216 pre 571µs on 686µs post 562µs diff 120µs align 12582912 pre 548µs on 581µs post 565µs diff 24.9µs align 8388608 pre 586µs on 612µs post 581µs diff 28.7µs align 6291456 pre 579µs on 609µs post 576µs diff 31.8µs align 4194304 pre 578µs on 615µs post 577µs diff 37.9µs align 3145728 pre 579µs on 609µs post 582µs diff 28.1µs align 2097152 pre 578µs on 615µs post 579µs diff 36.4µs align 1572864 pre 579µs on 613µs post 587µs diff 29.8µs align 1048576 pre 574µs on 603µs post 575µs diff 28.6µs align 786432 pre 574µs on 574µs post 578µs diff -1948ns align 524288 pre 583µs on 609µs post 577µs diff 28.9µs align 393216 pre 574µs on 583µs post 581µs diff 5.8µs align 262144 pre 579µs on 579µs post 585µs diff -3129ns align 196608 pre 585µs on 581µs post 582µs diff -1892ns align 131072 pre 578µs on 584µs post 579µs diff 5.92µs align 98304 pre 573µs on 580µs post 576µs diff 4.95µs align 65536 pre 576µs on 582µs post 581µs diff 3.19µs align 49152 pre 579µs on 578µs post 580µs diff -1546ns align 32768 pre 577µs on 577µs post 582µs diff -2490ns align 24576 pre 574µs on 576µs post 580µs diff -1016ns align 16384 pre 576µs on 573µs post 577µs diff -3435ns align 12288 pre 584µs on 580µs post 583µs diff -2950ns align 8192 pre 581µs on 576µs post 578µs diff -3156ns align 6144 pre 581µs on 584µs post 576µs diff 5.48µs align 4096 pre 575µs on 584µs post 584µs diff 3.81µs align 3072 pre 575µs on 572µs post 573µs diff -1836ns align 2048 pre 579µs on 576µs post 576µs diff -1295ns # linear access goes up to 7*512KB arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=1 512KiB 4.89M/s 256KiB 4.78M/s 128KiB 2.24M/s 64KiB 2.23M/s 32KiB 4.64M/s 16KiB 4.15M/s 8KiB 3.14M/s 4KiB 2.43M/s 2KiB 1.28M/s 1KiB 562K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=5 512KiB 4.45M/s 256KiB 2.88M/s 128KiB 3.92M/s 64KiB 3.99M/s 32KiB 4.63M/s 16KiB 4.1M/s 8KiB 3.18M/s 4KiB 2.37M/s 2KiB 1.28M/s 1KiB 597K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=6 512KiB 2.41M/s 256KiB 3.47M/s 128KiB 4.1M/s 64KiB 4.12M/s 32KiB 4.58M/s 16KiB 4.1M/s 8KiB 3.18M/s 4KiB 2.44M/s 2KiB 1.21M/s 1KiB 605K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=7 512KiB 3.62M/s 256KiB 3.65M/s 128KiB 3.63M/s 64KiB 4.13M/s 32KiB 4.62M/s 16KiB 4.11M/s 8KiB 3.18M/s 4KiB 2.27M/s 2KiB 1.28M/s 1KiB 599K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=8 512KiB 4.23M/s 256KiB 1.98M/s 128KiB 965K/s 64KiB 464K/s 32KiB 226K/s 16KiB 112K/s 8KiB 55.4K/s 4KiB 28K/s #random goes up to 3*512KB: arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=1 --random 512KiB 2.23M/s 256KiB 2.22M/s 128KiB 2.27M/s 64KiB 2.29M/s 32KiB 2.22M/s 16KiB 2.1M/s 8KiB 1.81M/s 4KiB 1.5M/s 2KiB 600K/s 1KiB 262K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=1 --random 512KiB 2.26M/s 256KiB 2.3M/s 128KiB 2.29M/s 64KiB 2.28M/s 32KiB 2.12M/s 16KiB 2.11M/s 8KiB 1.82M/s 4KiB 1.55M/s 2KiB 602K/s 1KiB 247K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=3 --random 512KiB 2.73M/s 256KiB 2.3M/s 128KiB 2.3M/s 64KiB 2.28M/s 32KiB 2.14M/s 16KiB 2.08M/s 8KiB 1.81M/s 4KiB 1.54M/s 2KiB 594K/s 1KiB 260K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=4 --random 512KiB 2.63M/s 256KiB 2.65M/s 128KiB 3.1M/s 64KiB 1.5M/s 32KiB 1.09M/s 16KiB 605K/s 8KiB 308K/s 4KiB 163K/s 2KiB 78.4K/s # not 2*1MB: arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=1048576 --open-au-nr=2 --random 1MiB 2.51M/s 512KiB 3.02M/s 256KiB 1.93M/s 128KiB 2.19M/s 64KiB 1.75M/s 32KiB 1.22M/s 16KiB 785K/s 8KiB 395K/s 4KiB 241K/s #not 4 *256 KB: arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=262144 --open-au-nr=4 --random 256KiB 1.77M/s 128KiB 1.46M/s 64KiB 2.13M/s 32KiB 1.06M/s 16KiB 671K/s 8KiB 313K/s 4KiB 164K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --open-au-nr=3 --random --offset=262144 512KiB 1.94M/s 256KiB 2.19M/s 128KiB 1.08M/s 64KiB 1.09M/s 32KiB 668K/s 16KiB 459K/s # no special FAT area: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --blocksize=1024 --erasesize=524288 --findfat --fat-nr=8 512KiB 4.81M/s 4.96M/s 4.98M/s 4.94M/s 4.91M/s 4.96M/s 4.93M/s 5.01M/s 256KiB 2.22M/s 4.98M/s 5.02M/s 4.9M/s 5M/s 4.99M/s 4.95M/s 4.8M/s 128KiB 2.2M/s 4.93M/s 4.89M/s 4.96M/s 5M/s 5.03M/s 4.9M/s 4.96M/s 64KiB 2.27M/s 4.9M/s 4.98M/s 4.99M/s 4.97M/s 4.9M/s 4.96M/s 4.98M/s 32KiB 4.55M/s 4.58M/s 4.61M/s 4.65M/s 4.69M/s 4.62M/s 4.66M/s 4.61M/s 16KiB 4.16M/s 4.13M/s 4.15M/s 4.13M/s 4.12M/s 4.11M/s 4.16M/s 4.15M/s 8KiB 3.2M/s 3.19M/s 3.21M/s 3.2M/s 3.21M/s 3.04M/s 3.21M/s 3.18M/s 4KiB 2.48M/s 2.46M/s 2.48M/s 2.48M/s 2.49M/s 2.46M/s 2.48M/s 2.47M/s 2KiB 1.28M/s 1.31M/s 1.28M/s 1.31M/s 1.31M/s 1.27M/s 1.3M/s 1.3M/s 1KiB 621K/s 537K/s 614K/s 621K/s 622K/s 620K/s 624K/s 623K/s

15 years, 1 month

Dual sim dual standby mobile phone just for 19 USD

by Picasa Web Albums

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15 years, 1 month

Sandisk internal USB MFD

by Arnd Bergmann

lsusb Bus 001 Device 006: ID 0781:6500 SanDisk Corp. Disk /dev/sdc: 8220 MB, 8220835328 bytes 255 heads, 63 sectors/track, 999 cylinders, total 16056319 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/sdc1 * 54 16032869 8016408 c W95 FAT32 (LBA) arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/sdc --count=32 --blocksize=1024 align 1610612736 pre 921µs on 909µs post 919µs diff -11000n align 1073741824 pre 872µs on 872µs post 872µs diff -42ns align 805306368 pre 872µs on 872µs post 872µs diff 172ns align 536870912 pre 872µs on 872µs post 872µs diff 56ns align 402653184 pre 872µs on 872µs post 872µs diff 224ns align 268435456 pre 872µs on 872µs post 872µs diff 91ns align 201326592 pre 872µs on 872µs post 872µs diff 224ns align 134217728 pre 872µs on 872µs post 872µs diff 62ns align 100663296 pre 872µs on 872µs post 872µs diff -35ns align 67108864 pre 872µs on 872µs post 872µs diff 137ns align 50331648 pre 872µs on 872µs post 872µs diff 262ns align 33554432 pre 872µs on 872µs post 872µs diff -286ns align 25165824 pre 872µs on 872µs post 872µs diff -28ns align 16777216 pre 873µs on 872µs post 872µs diff -91ns align 12582912 pre 872µs on 872µs post 872µs diff -206ns align 8388608 pre 872µs on 872µs post 872µs diff -121ns align 6291456 pre 894µs on 910µs post 896µs diff 15µs align 4194304 pre 882µs on 884µs post 884µs diff 1.26µs align 3145728 pre 881µs on 882µs post 884µs diff -38ns align 2097152 pre 882µs on 884µs post 897µs diff -5545ns align 1572864 pre 869µs on 906µs post 880µs diff 31.1µs align 1048576 pre 832µs on 834µs post 821µs diff 7.32µs align 786432 pre 832µs on 834µs post 822µs diff 6.59µs align 524288 pre 830µs on 834µs post 822µs diff 8.2µs align 393216 pre 832µs on 834µs post 823µs diff 7.01µs align 262144 pre 832µs on 835µs post 822µs diff 7.42µs align 196608 pre 832µs on 833µs post 822µs diff 6.49µs align 131072 pre 832µs on 833µs post 822µs diff 5.98µs align 98304 pre 876µs on 886µs post 883µs diff 6.56µs align 65536 pre 834µs on 835µs post 822µs diff 6.83µs align 49152 pre 832µs on 833µs post 822µs diff 6.5µs align 32768 pre 832µs on 835µs post 822µs diff 7.48µs align 24576 pre 822µs on 835µs post 822µs diff 12.7µs align 16384 pre 832µs on 834µs post 822µs diff 7.27µs align 12288 pre 822µs on 835µs post 822µs diff 12.9µs align 8192 pre 822µs on 835µs post 823µs diff 12.3µs align 6144 pre 822µs on 822µs post 822µs diff 429ns align 4096 pre 860µs on 901µs post 907µs diff 17.4µs align 3072 pre 822µs on 822µs post 822µs diff 367ns align 2048 pre 822µs on 823µs post 822µs diff 506ns arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=2097152 --findfat --fat-nr=7 2MiB 26.8M/s 28.3M/s 28.2M/s 26.8M/s 28.2M/s 28.2M/s 28.6M/s 1MiB 27.2M/s 28.1M/s 28.2M/s 27.5M/s 28.1M/s 27.9M/s 28M/s 512KiB 27.1M/s 27.2M/s 27.7M/s 27.7M/s 27.5M/s 27.7M/s 27.3M/s 256KiB 26.4M/s 27.2M/s 27.2M/s 23.6M/s 24.3M/s 26.2M/s 26.7M/s 128KiB 25.3M/s 25.7M/s 25.2M/s 25.7M/s 25.7M/s 25.7M/s 25.7M/s 64KiB 23.1M/s 25.7M/s 25.7M/s 25.7M/s 25.7M/s 24.4M/s 25.2M/s 32KiB 14.9M/s 21.5M/s 21.5M/s 21.5M/s 21.2M/s 21.5M/s 21.5M/s 16KiB 15.3M/s 16.2M/s 16.1M/s 16.2M/s 16.2M/s 16.2M/s 16.2M/s 8KiB 10.4M/s 10.8M/s 10.8M/s 10.9M/s 10.8M/s 10.8M/s 10.9M/s 4KiB 6.05M/s 6.52M/s 6.48M/s 6.53M/s 6.52M/s 6.51M/s 6.53M/s 2KiB 2.56M/s 2.67M/s 2.63M/s 2.64M/s 2.67M/s 2.64M/s 2.61M/s 1KiB 1.24M/s 1.22M/s 1.24M/s 1.23M/s 1.22M/s 1.21M/s 1.23M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=2097152 --findfat --fat-nr=7 --random 2MiB 26.8M/s 28.3M/s 28.2M/s 28.3M/s 27.7M/s 28.2M/s 28.2M/s 1MiB 27.5M/s 28.1M/s 27.7M/s 28.1M/s 28M/s 28.1M/s 28.1M/s 512KiB 14.8M/s 21M/s 13.1M/s 13M/s 13.1M/s 12.6M/s 12.9M/s 256KiB 11.6M/s 12.8M/s 12.9M/s 12.9M/s 12.9M/s 12.9M/s 10.2M/s 128KiB 12.4M/s 12.6M/s 12.5M/s 12.6M/s 12.6M/s 12.5M/s 12.6M/s 64KiB 12.3M/s 12.4M/s 12.4M/s 12.5M/s 12.5M/s 12.5M/s 9.9M/s 32KiB 9.29M/s 11.4M/s 11.2M/s 11.3M/s 11.2M/s 11.3M/s 11.2M/s 16KiB 9.68M/s 7.99M/s 9.55M/s 9.47M/s 9.42M/s 9.55M/s 7.94M/s 8KiB 3.19M/s 3.71M/s 3.72M/s 3.45M/s 3.71M/s 3.71M/s 3.58M/s 4KiB 1.72M/s 1.65M/s 1.72M/s 1.71M/s 1.66M/s 1.73M/s 1.72M/s 2KiB 726K/s 745K/s 737K/s 748K/s 735K/s 694K/s 739K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=1 --open-au --offset=$[16 * 1024 * 1024 - 16384] --random 1MiB 12.3M/s 512KiB 20.5M/s 256KiB 26.3M/s 128KiB 12.6M/s 64KiB 12.6M/s 32KiB 11.5M/s 16KiB 9.57M/s 8KiB 4.04M/s 4KiB 1.77M/s 2KiB 686K/s 1KiB 341K/s 512B 163K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024 * 1024] --open-au-nr=2 --open-au --offset=$[16 * 1024 * 1024 -16384] --random 1MiB 12.7M/s 512KiB 27.4M/s 256KiB 25.6M/s 128KiB 12.6M/s 64KiB 12.6M/s 32KiB 11.3M/s 16KiB 9.67M/s 8KiB 4M/s 4KiB 1.62M/s 2KiB 739K/s 1KiB 338K/s 512B 163K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024 * 1024] --open-au-nr=3 --open-au --offset=$[16 * 1024 * 1024 -16384] --random 1MiB 12.7M/s 512KiB 27.5M/s 256KiB 26.1M/s 128KiB 12.6M/s 64KiB 12.6M/s 32KiB 11.4M/s 16KiB 9.64M/s 8KiB 3.99M/s 4KiB 1.69M/s # four does not work arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024 * 1024] --open-au-nr=4 --open-au --offset=$[16 * 1024 * 1024 - 16384] --random 1MiB 14.9M/s 512KiB 21.6M/s 256KiB 17.3M/s 128KiB 9.07M/s 64KiB 5.77M/s 32KiB 3.14M/s 16KiB 1.71M/s 8KiB 835K/s 4KiB 399K/s # using plain 16 MB offset does not work arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024 * 1024] --open-au-nr=3 --open-au --offset=$[16 * 1024 * 1024 ] --random 1MiB 12.7M/s 512KiB 26.4M/s 256KiB 12.9M/s 128KiB 6.23M/s 64KiB 12.4M/s 32KiB 7.78M/s 16KiB 7.59M/s 8KiB 3.02M/s 4KiB 1.65M/s # linear: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=3 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 26.1M/s 512KiB 28.2M/s 256KiB 27.1M/s 128KiB 26M/s 64KiB 25.9M/s 32KiB 21.3M/s 16KiB 16.2M/s 8KiB 10.7M/s 4KiB 6.45M/s 2KiB 2.56M/s 1KiB 1.23M/s 512B 600K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=4 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 28M/s 512KiB 27.9M/s 256KiB 27.2M/s 128KiB 26M/s 64KiB 25.5M/s 32KiB 21.5M/s 16KiB 13.2M/s 8KiB 10.8M/s 4KiB 5.24M/s 2KiB 2.66M/s 1KiB 1.22M/s 512B 584K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=5 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 27.7M/s 512KiB 22.8M/s 256KiB 27.1M/s 128KiB 25.9M/s 64KiB 25.4M/s 32KiB 21.5M/s 16KiB 15.3M/s 8KiB 8.37M/s 4KiB 6.46M/s 2KiB 2.6M/s 1KiB 1.23M/s 512B 588K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=5 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 13M/s 512KiB 27.7M/s 256KiB 26.9M/s 128KiB 25.4M/s 64KiB 25.7M/s 32KiB 21.2M/s 16KiB 16.1M/s 8KiB 10.7M/s 4KiB 6.44M/s 2KiB 2.51M/s 1KiB 1.2M/s 512B 578K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=6 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 24M/s 512KiB 27.6M/s 256KiB 27M/s 128KiB 25.3M/s 64KiB 24.5M/s 32KiB 21.2M/s 16KiB 12.9M/s 8KiB 10.4M/s 4KiB 6.41M/s 2KiB 2.6M/s 1KiB 1.23M/s 512B 577K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=7 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 14.4M/s 512KiB 24.2M/s 256KiB 27.1M/s 128KiB 25.7M/s 64KiB 25.6M/s 32KiB 18.3M/s 16KiB 16M/s 8KiB 10.8M/s 4KiB 6.47M/s 2KiB 2.62M/s 1KiB 1.2M/s 512B 558K/s # 8 AUs is too much arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=8 --open-au --offset=$[16 * 1024 * 1024 -16384 ] 1MiB 27.5M/s 512KiB 14.3M/s 256KiB 6.83M/s 128KiB 3.28M/s 64KiB 1.62M/s 32KiB 779K/s ^C # wrong offset, linear: arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=7 --open-au --offset=$[16 * 1024 * 1024 ] 1MiB 17.2M/s 512KiB 9.98M/s 256KiB 9.56M/s 128KiB 9.17M/s 64KiB 9.12M/s 32KiB 6.75M/s 16KiB 9.87M/s 8KiB 7.17M/s 4KiB 5.17M/s 2KiB 2.42M/s 1KiB 1.09M/s 512B 568K/s

15 years, 1 month

STEC USB MFD 8 GB

by Arnd Bergmann

Bus 001 Device 007: ID 136b:0918 STEC $ sudo fdisk -lu /dev/sdc Disk /dev/sdc: 8399 MB, 8399978496 bytes 255 heads, 63 sectors/track, 1021 cylinders, total 16406208 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: 0xe0230500 Device Boot Start End Blocks Id System /dev/sdc1 * 63 16064 8001 41 PPC PReP Boot /dev/sdc2 16065 224909 104422+ 83 Linux /dev/sdc3 224910 16402364 8088727+ 8e Linux LVM arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/sdc --count=32 --blocksize=1024 align 1610612736 pre 1.37ms on 1.37ms post 1.37ms diff -777ns align 1073741824 pre 1.36ms on 1.37ms post 1.36ms diff 9.34µs align 805306368 pre 1.36ms on 1.36ms post 1.33ms diff 12.1µs align 536870912 pre 1.37ms on 1.34ms post 1.32ms diff -1903ns align 402653184 pre 1.31ms on 1.31ms post 1.29ms diff 7.38µs align 268435456 pre 1.37ms on 1.37ms post 1.37ms diff 1.56µs align 201326592 pre 1.37ms on 1.37ms post 1.37ms diff -1533ns align 134217728 pre 1.37ms on 1.37ms post 1.37ms diff 853ns align 100663296 pre 1.36ms on 1.37ms post 1.36ms diff 14.7µs align 67108864 pre 1.37ms on 1.38ms post 1.34ms diff 16.9µs align 50331648 pre 1.29ms on 1.32ms post 1.29ms diff 29.9µs align 33554432 pre 1.29ms on 1.32ms post 1.29ms diff 29.3µs align 25165824 pre 1.29ms on 1.3ms post 1.28ms diff 16.4µs align 16777216 pre 1.29ms on 1.31ms post 1.28ms diff 21.4µs align 12582912 pre 1.3ms on 1.31ms post 1.28ms diff 19.7µs align 8388608 pre 1.3ms on 1.31ms post 1.3ms diff 3.85µs align 6291456 pre 1.31ms on 1.31ms post 1.3ms diff 5.76µs align 4194304 pre 1.3ms on 1.31ms post 1.3ms diff 11.6µs align 3145728 pre 1.29ms on 1.31ms post 1.3ms diff 19.6µs align 2097152 pre 1.28ms on 1.31ms post 1.28ms diff 24.1µs align 1572864 pre 1.3ms on 1.31ms post 1.31ms diff 7.45µs align 1048576 pre 1.31ms on 1.31ms post 1.3ms diff 7.2µs align 786432 pre 1.29ms on 1.31ms post 1.3ms diff 14.5µs align 524288 pre 1.3ms on 1.31ms post 1.28ms diff 15.2µs align 393216 pre 1.28ms on 1.31ms post 1.29ms diff 22.7µs align 262144 pre 1.41ms on 1.42ms post 1.3ms diff 70.9µs align 196608 pre 1.41ms on 1.42ms post 1.29ms diff 71.3µs align 131072 pre 1.41ms on 1.42ms post 1.29ms diff 69.7µs align 98304 pre 1.4ms on 1.42ms post 1.31ms diff 70.1µs align 65536 pre 1.42ms on 1.42ms post 1.29ms diff 64.2µs align 49152 pre 1.37ms on 1.43ms post 1.31ms diff 95µs align 32768 pre 1.36ms on 1.38ms post 1.27ms diff 67.5µs align 24576 pre 1.28ms on 1.3ms post 1.3ms diff 13.2µs align 16384 pre 1.42ms on 1.4ms post 1.29ms diff 44.1µs align 12288 pre 1.3ms on 1.31ms post 1.28ms diff 18.9µs align 8192 pre 1.29ms on 1.31ms post 1.3ms diff 12.2µs align 6144 pre 1.29ms on 1.31ms post 1.3ms diff 13.5µs align 4096 pre 1.3ms on 1.31ms post 1.3ms diff 9.87µs align 3072 pre 1.28ms on 1.31ms post 1.3ms diff 17.2µs align 2048 pre 1.3ms on 1.31ms post 1.31ms diff 4.48µs arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=$[1 * 1024 * 1024] --open-au --open-au-nr=1 --offset=$[4 * 1024 * 1024] 1MiB 5.14M/s 512KiB 4.52M/s 256KiB 4.5M/s 128KiB 4.47M/s 64KiB 5.27M/s 32KiB 4.35M/s 16KiB 4.09M/s 8KiB 4.02M/s 4KiB 3.4M/s 2KiB 2.22M/s 1KiB 1.67M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=$[1 * 1024 * 1024] --open-au --open-au-nr=4 --offset=$[4 * 1024 * 1024] 1MiB 5.27M/s 512KiB 4.25M/s 256KiB 2.78M/s 128KiB 2.29M/s 64KiB 1.28M/s 32KiB 684K/s 16KiB 425K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=$[1 * 1024 * 1024] --open-au --open-au-nr=2 --offset=$[4 * 1024 * 1024] 1MiB 5.24M/s 512KiB 3.78M/s 256KiB 3.04M/s 128KiB 2.1M/s 64KiB 1.16M/s 32KiB 746K/s 16KiB 583K/s 8KiB 254K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=1024 --erasesize=$[1 * 1024 * 1024] --open-au --open-au-nr=1 --offset=$[4 * 1024 * 1024] --random 1MiB 5.14M/s 512KiB 3.9M/s 256KiB 3.26M/s 128KiB 2.62M/s 64KiB 1.16M/s 32KiB 627K/s 16KiB 394K/s 8KiB 224K/s 4KiB 103K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=1 --open-au --offset=$[304 * 1024 + 0 * 1024] 128KiB 6.28M/s 64KiB 6.44M/s 32KiB 6.22M/s 16KiB 5.74M/s 8KiB 4.93M/s 4KiB 3.88M/s 2KiB 2.63M/s 1KiB 1.77M/s 512B 959K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=1 --open-au --offset=$[304 * 1024 + 128 * 1024] 128KiB 6.09M/s 64KiB 6.48M/s 32KiB 6.18M/s 16KiB 5.71M/s 8KiB 5.05M/s 4KiB 3.87M/s 2KiB 2.63M/s 1KiB 1.78M/s 512B 944K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=1 --open-au --offset=$[302 * 1024 + 128 * 1024] 128KiB 1.43M/s 64KiB 3.66M/s 32KiB 1.41M/s 16KiB 1.38M/s 8KiB 3.15M/s 4KiB 1.24M/s 2KiB 1.07M/s 1KiB 1.46M/s 512B 633K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=1 --open-au --offset=$[306 * 1024 + 128 * 1024] 128KiB 6.13M/s 64KiB 1.42M/s 32KiB 3.57M/s 16KiB 1.38M/s 8KiB 1.33M/s 4KiB 2.66M/s 2KiB 1.07M/s 1KiB 893K/s 512B 863K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=1 --open-au --offset=$[304 * 1024 + 128 * 1024] --random 128KiB 6.35M/s 64KiB 4.79M/s 32KiB 2.89M/s 16KiB 1.34M/s 8KiB 691K/s 4KiB 401K/s 2KiB 178K/s 1KiB 90.8K/s 512B 45K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[128 * 1024] --open-au-nr=2 --open-au --offset=$[304 * 1024] 128KiB 6.42M/s 64KiB 2.04M/s 32KiB 1.19M/s 16KiB 466K/s 8KiB 248K/s 4KiB 117K/s 2KiB 59.5K/s 1KiB 29K/s 512B 14.6K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[64 * 1024] --open-au-nr=1 --open-au --offset=$[304 * 1024] 64KiB 5.93M/s 32KiB 2.4M/s 16KiB 2.33M/s 8KiB 2.2M/s 4KiB 1.95M/s 2KiB 1.58M/s 1KiB 1.19M/s 512B 777K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[128 * 1024] --open-au-nr=6 --findfat --fat-nr=9 128KiB 859K/s 1.03M/s 1.78M/s 6.47M/s 6.48M/s 6.47M/s 6.48M/s 6.47M/s 6.48M/s 64KiB 705K/s 815K/s 2.12M/s 6.47M/s 6.43M/s 6.47M/s 6.47M/s 6.43M/s 6.47M/s 32KiB 771K/s 812K/s 1.79M/s 6.24M/s 6.21M/s 6.21M/s 6.14M/s 6.24M/s 6.16M/s 16KiB 775K/s 812K/s 1.58M/s 4.77M/s 5.19M/s 4.61M/s 5.05M/s 5.71M/s 5.7M/s 8KiB 745K/s 785K/s 1.66M/s 5.02M/s 5.04M/s 5.02M/s 4.66M/s 5.02M/s 5.02M/s 4KiB 774K/s 758K/s 1.53M/s 3.87M/s 3.86M/s 3.87M/s 3.87M/s 3.82M/s 3.89M/s

15 years, 1 month

8 GB USB MFD prototype (smart modular tech) CUG40041 (eUSB 8GB SMI325AC)

by Arnd Bergmann

$ lsusb Bus 001 Device 004: ID 0e39:2b00 Smart Modular Technologies, Inc. $ fdisk -lu Disk /dev/sdd: 8 GB, 8052549120 bytes 255 heads, 63 sectors/track, 979 cylinders, total 15727635 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdd1 * 63 15728638 7871818 b FAT32 Warning: Partition 1 does not end on cylinder boundary. arnd@wuerfel:~/flashbench$ sudo sdparm --all /dev/sdd /dev/sdd: SMART eUSB 870C Read write error recovery mode page: AWRE 0 [cha: n, def: 0] ARRE 0 [cha: n, def: 0] TB 0 [cha: n, def: 0] RC 0 [cha: n, def: 0] EER 0 [cha: n, def: 0] PER 0 [cha: n, def: 0] DTE 0 [cha: n, def: 0] DCR 0 [cha: n, def: 0] RRC 3 [cha: n, def: 3] COR_S 0 [cha: n, def: 0] HOC 0 [cha: n, def: 0] DSOC 0 [cha: n, def: 0] WRC 128 [cha: n, def:128] RTL 0 [cha: n, def: 0] Informational exceptions control mode page: PERF 0 [cha: n, def: 0] EBF 0 [cha: n, def: 0] EWASC 0 [cha: n, def: 0] DEXCPT 0 [cha: n, def: 0] TEST 0 [cha: n, def: 0] EBACKERR 0 [cha: n, def: 0] LOGERR 0 [cha: n, def: 0] MRIE 5 [cha: n, def: 5] INTT 28 [cha: n, def: 28] Background control (SBC) mode page: S_L_FULL 0 [cha: n, def: 0] LOWIR 0 [cha: n, def: 0] EN_BMS 0 [cha: n, def: 0] EN_PS 0 [cha: n, def: 0] BMS_I 28 [cha: n, def: 28] arnd@wuerfel:~/flashbench$ sudo fsck.msdos /dev/sdd1 dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN /dev/sdd1: 1 files, 1/1962235 clusters arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdd --blocksize=1024 align 1073741824 pre 472µs on 507µs post 492µs diff 24.7µs align 536870912 pre 471µs on 505µs post 488µs diff 26µs align 268435456 pre 477µs on 504µs post 490µs diff 20µs align 134217728 pre 467µs on 500µs post 484µs diff 24.5µs align 67108864 pre 484µs on 501µs post 484µs diff 17.2µs align 33554432 pre 492µs on 510µs post 493µs diff 18.2µs align 16777216 pre 487µs on 508µs post 477µs diff 26.2µs align 8388608 pre 481µs on 508µs post 484µs diff 24.7µs align 4194304 pre 486µs on 503µs post 490µs diff 15.8µs align 2097152 pre 483µs on 506µs post 473µs diff 27.7µs align 1048576 pre 484µs on 487µs post 487µs diff 2.27µs align 524288 pre 483µs on 483µs post 473µs diff 5.32µs align 262144 pre 485µs on 490µs post 488µs diff 3.68µs align 131072 pre 486µs on 489µs post 488µs diff 1.87µs align 65536 pre 483µs on 492µs post 490µs diff 6.09µs align 32768 pre 489µs on 491µs post 489µs diff 2.37µs align 16384 pre 490µs on 495µs post 490µs diff 4.68µs align 8192 pre 488µs on 491µs post 493µs diff 160ns align 4096 pre 490µs on 491µs post 491µs diff 863ns align 2048 pre 488µs on 487µs post 490µs diff -1492ns arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=512 --erasesize=2097152 --open-au-nr=1 2MiB 15.2M/s 1MiB 13.3M/s 512KiB 21M/s 256KiB 19.9M/s 128KiB 18.9M/s 64KiB 17.3M/s 32KiB 11.8M/s 16KiB 8.96M/s 8KiB 5.06M/s 4KiB 2.74M/s 2KiB 1.45M/s 1KiB 744K/s 512B 384K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=2 2MiB 22M/s 1MiB 11.4M/s 512KiB 21.7M/s 256KiB 9.28M/s 128KiB 19.3M/s 64KiB 17.6M/s 32KiB 11.8M/s 16KiB 9.1M/s 8KiB 5.03M/s 4KiB 2.8M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=4 2MiB 18.5M/s 1MiB 14.6M/s 512KiB 14.3M/s 256KiB 13.8M/s 128KiB 13.3M/s 64KiB 12.4M/s 32KiB 9.21M/s 16KiB 7.39M/s 8KiB 4.54M/s 4KiB 2.62M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=5 2MiB 13M/s 1MiB 8M/s 512KiB 4.56M/s 256KiB 2.67M/s 128KiB 1.46M/s 64KiB 762K/s 32KiB 388K/s 16KiB 514K/s 8KiB 4.28M/s 4KiB 2.61M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=6 2MiB 15M/s 1MiB 7.9M/s 512KiB 4.6M/s 256KiB 2.67M/s 128KiB 1.46M/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=4 --random 2MiB 15.6M/s 1MiB 8.53M/s 512KiB 7.68M/s 256KiB 6.71M/s 128KiB 7.11M/s 64KiB 5.7M/s 32KiB 5.23M/s 16KiB 2.79M/s 8KiB 1.66M/s 4KiB 886K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=5 --random 2MiB 12.6M/s 1MiB 6.85M/s 512KiB 6.7M/s 256KiB 5.79M/s 128KiB 6.27M/s 64KiB 4.94M/s 32KiB 4.63M/s 16KiB 2.69M/s 8KiB 1.61M/s 4KiB 879K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=5 2MiB 12.1M/s 1MiB 14.9M/s 512KiB 14.4M/s 256KiB 14M/s 128KiB 13.4M/s 64KiB 12.5M/s 32KiB 9.36M/s 16KiB 7.53M/s 8KiB 4.57M/s 4KiB 2.63M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --open-au --blocksize=4096 --erasesize=2097152 --open-au-nr=6 --random 2MiB 12.8M/s 1MiB 7.19M/s 512KiB 4.84M/s 256KiB 2.72M/s 128KiB 1.47M/s 64KiB 768K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --blocksize=4096 --erasesize=$[2*1024*1024] --findfat --fat-nr=10 2MiB 7.71M/s 11.2M/s 11.1M/s 12.4M/s 12.2M/s 12.1M/s 12.3M/s 22.9M/s 23M/s 23M/s 1MiB 12M/s 12M/s 12.1M/s 12.2M/s 11.4M/s 11.4M/s 11.4M/s 22.8M/s 22.8M/s 22.8M/s 512KiB 6.77M/s 11.1M/s 11.1M/s 12M/s 11.9M/s 11.9M/s 11.9M/s 22M/s 22M/s 22M/s 256KiB 7.44M/s 11.5M/s 11.4M/s 11.6M/s 10.7M/s 10.7M/s 10.7M/s 20.9M/s 20.8M/s 20.7M/s 128KiB 10.1M/s 10.3M/s 10.3M/s 11.2M/s 10.1M/s 10.2M/s 10.1M/s 19.7M/s 19.4M/s 19.5M/s 64KiB 6.67M/s 9.68M/s 9.65M/s 10.5M/s 10.5M/s 10.4M/s 10.5M/s 17.9M/s 17.7M/s 17.7M/s 32KiB 6.17M/s 5.71M/s 5.61M/s 5.7M/s 5.73M/s 5.74M/s 5.72M/s 12M/s 12M/s 12M/s 16KiB 3.73M/s 4.9M/s 4.87M/s 4.88M/s 4.65M/s 4.72M/s 4.71M/s 8.98M/s 9.18M/s 9.21M/s 8KiB 3M/s 3M/s 3M/s 3.08M/s 3.06M/s 3.07M/s 3.06M/s 5.14M/s 5.12M/s 5.11M/s 4KiB 1.64M/s 1.8M/s 1.8M/s 1.8M/s 1.79M/s 1.79M/s 1.8M/s 2.8M/s 2.81M/s 2.81M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdd1 --blocksize=4096 --erasesize=$[2*1024*1024] --findfat --fat-nr=10 --random 2MiB 11.7M/s 11.7M/s 11.9M/s 12.3M/s 12.2M/s 12.2M/s 12.2M/s 23M/s 23M/s 23M/s 1MiB 6.88M/s 12M/s 11.9M/s 12.2M/s 11.4M/s 11.4M/s 11.4M/s 11.1M/s 11M/s 11M/s 512KiB 9.65M/s 9.72M/s 11.8M/s 9.7M/s 11.1M/s 11.1M/s 11M/s 10.8M/s 10.8M/s 10.8M/s 256KiB 6.61M/s 9.51M/s 11.5M/s 9.47M/s 10.6M/s 10.7M/s 10.7M/s 10.5M/s 10.5M/s 10.4M/s 128KiB 6.77M/s 9.14M/s 11M/s 9.11M/s 9.93M/s 9.98M/s 9.98M/s 9.77M/s 9.75M/s 9.8M/s 64KiB 5.97M/s 8.29M/s 10.4M/s 8.31M/s 9.39M/s 9.37M/s 9.41M/s 9.07M/s 8.91M/s 9.03M/s 32KiB 5.14M/s 5.68M/s 8.08M/s 8.12M/s 8.07M/s 8.07M/s 8.1M/s 6.44M/s 6.43M/s 6.62M/s 16KiB 5.2M/s 5.22M/s 4.35M/s 4.11M/s 4.24M/s 4.23M/s 4.24M/s 4.38M/s 4.36M/s 4.38M/s 8KiB 2.4M/s 2.72M/s 2.8M/s 2.72M/s 2.72M/s 2.74M/s 2.73M/s 2.49M/s 2.49M/s 2.48M/s 4KiB 1.57M/s 1.57M/s 1.59M/s 1.57M/s 1.57M/s 1.57M/s 1.57M/s 1.5M/s 1.5M/s 1.49M/s

15 years, 1 month

Transcend Class 10 SDHC 32 GB

by Arnd Bergmann

==> /sys/block/mmcblk0/device/cid <== 744a455344432020000000037200b200 ==> /sys/block/mmcblk0/device/csd <== 400e00325b590000f1dd7f800a400000 ==> /sys/block/mmcblk0/device/date <== 02/2011 ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x0 ==> /sys/block/mmcblk0/device/manfid <== 0x000074 ==> /sys/block/mmcblk0/device/name <== SDC ==> /sys/block/mmcblk0/device/oemid <== 0x4a45 ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x00000372 Disk /dev/mmcblk0: 32.5 GB, 32462864384 bytes 255 heads, 63 sectors/track, 3946 cylinders, total 63404032 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: 0x00099590 Device Boot Start End Blocks Id System /dev/mmcblk0p1 8192 63404031 31697920 83 Linux arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 align 6442450944 pre 611µs on 1.11ms post 903µs diff 354µs align 4294967296 pre 678µs on 1.12ms post 897µs diff 330µs align 3221225472 pre 631µs on 1.12ms post 895µs diff 353µs align 2147483648 pre 649µs on 1.1ms post 897µs diff 323µs align 1610612736 pre 565µs on 990µs post 895µs diff 259µs align 1073741824 pre 637µs on 1.09ms post 896µs diff 328µs align 805306368 pre 566µs on 992µs post 897µs diff 261µs align 536870912 pre 565µs on 992µs post 898µs diff 261µs align 402653184 pre 554µs on 990µs post 900µs diff 263µs align 268435456 pre 669µs on 1.1ms post 1.01ms diff 263µs align 201326592 pre 542µs on 937µs post 810µs diff 260µs align 134217728 pre 544µs on 1.01ms post 888µs diff 298µs align 100663296 pre 535µs on 933µs post 809µs diff 261µs align 67108864 pre 537µs on 937µs post 810µs diff 263µs align 50331648 pre 539µs on 933µs post 789µs diff 269µs align 33554432 pre 602µs on 1.08ms post 885µs diff 334µs align 25165824 pre 600µs on 1.08ms post 883µs diff 334µs align 16777216 pre 609µs on 1.08ms post 886µs diff 331µs align 12582912 pre 600µs on 1.08ms post 888µs diff 334µs align 8388608 pre 609µs on 1.08ms post 889µs diff 333µs align 6291456 pre 720µs on 962µs post 958µs diff 123µs align 4194304 pre 603µs on 1.07ms post 885µs diff 323µs align 3145728 pre 661µs on 988µs post 913µs diff 201µs align 2097152 pre 685µs on 954µs post 928µs diff 147µs align 1572864 pre 694µs on 956µs post 927µs diff 145µs align 1048576 pre 690µs on 960µs post 933µs diff 149µs align 786432 pre 692µs on 955µs post 929µs diff 145µs align 524288 pre 700µs on 957µs post 930µs diff 143µs align 393216 pre 675µs on 957µs post 928µs diff 155µs align 262144 pre 674µs on 951µs post 923µs diff 153µs align 196608 pre 699µs on 948µs post 922µs diff 138µs align 131072 pre 685µs on 954µs post 916µs diff 154µs align 98304 pre 669µs on 941µs post 857µs diff 178µs align 65536 pre 701µs on 942µs post 940µs diff 122µs align 49152 pre 669µs on 899µs post 900µs diff 115µs align 32768 pre 634µs on 906µs post 857µs diff 161µs align 24576 pre 605µs on 931µs post 886µs diff 186µs align 16384 pre 627µs on 921µs post 867µs diff 174µs align 12288 pre 787µs on 782µs post 757µs diff 10.1µs align 8192 pre 595µs on 943µs post 896µs diff 198µs align 6144 pre 669µs on 668µs post 631µs diff 18µs align 4096 pre 743µs on 742µs post 707µs diff 17.1µs align 3072 pre 782µs on 784µs post 743µs diff 21.1µs align 2048 pre 819µs on 819µs post 783µs diff 18.2µs arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=512 --erasesize=4194304 --open-au-nr=1 4MiB 5.52M/s 2MiB 10.9M/s 1MiB 10.9M/s 512KiB 10.2M/s 256KiB 10.6M/s 128KiB 10.7M/s 64KiB 10.7M/s 32KiB 6.85M/s 16KiB 4.48M/s 8KiB 2.51M/s 4KiB 1.62M/s 2KiB 970K/s 1KiB 534K/s 512B 309K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=2 4MiB 6.7M/s 2MiB 10.8M/s 1MiB 11.2M/s 512KiB 11.2M/s 256KiB 11.1M/s 128KiB 11.1M/s 64KiB 11.1M/s 32KiB 7.28M/s 16KiB 4.81M/s 8KiB 2.49M/s 4KiB 1.38M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=3 4MiB 11.4M/s 2MiB 8.11M/s 1MiB 6.49M/s 512KiB 11.7M/s 256KiB 11.6M/s 128KiB 11.5M/s 64KiB 11.7M/s 32KiB 7.62M/s 16KiB 5.18M/s 8KiB 2.64M/s 4KiB 1.46M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=4 4MiB 11.8M/s 2MiB 9.11M/s 1MiB 11.8M/s 512KiB 11.8M/s 256KiB 11.7M/s 128KiB 11.6M/s 64KiB 11.6M/s 32KiB 7.76M/s 16KiB 5.22M/s 8KiB 2.69M/s 4KiB 1.46M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=5 --random 4MiB 10.7M/s 2MiB 10.7M/s 1MiB 10.6M/s 512KiB 10.6M/s 256KiB 10.6M/s 128KiB 10.4M/s 64KiB 10.2M/s 32KiB 6.57M/s 16KiB 4.23M/s 8KiB 1.64M/s 4KiB 814K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=5 4MiB 11.6M/s 2MiB 9.32M/s 1MiB 11.6M/s 512KiB 11.6M/s 256KiB 11.5M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=6 4MiB 9.38M/s 2MiB 4.49M/s 1MiB 2.04M/s 512KiB 1.11M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=6 --random 4MiB 5.63M/s 2MiB 3.69M/s 1MiB 1.97M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --blocksize=4096 --erasesize=4194304 --open-au-nr=6 --random --findfat --fat-nr=5 4MiB 10.7M/s 10.7M/s 10.8M/s 10.9M/s 10.9M/s 2MiB 10.6M/s 10.9M/s 11M/s 10.7M/s 10.8M/s 1MiB 10.7M/s 10.7M/s 10.6M/s 10.9M/s 10.9M/s 512KiB 10.8M/s 10.7M/s 10.9M/s 10.7M/s 10.8M/s 256KiB 10.5M/s 10.9M/s 10.9M/s 10.9M/s 10.7M/s 128KiB 10.7M/s 10.8M/s 10.7M/s 10.6M/s 10.7M/s 64KiB 10.7M/s 10.7M/s 10.5M/s 10.7M/s 10.7M/s 32KiB 6.91M/s 7.06M/s 7.03M/s 7.07M/s 6.92M/s 16KiB 4.52M/s 4.49M/s 4.52M/s 4.49M/s 4.49M/s 8KiB 1.72M/s 1.73M/s 1.71M/s 1.71M/s 1.71M/s 4KiB 863K/s 850K/s 842K/s 782K/s 854K/s

15 years, 1 month

8 GB Transcend CF 133x

by Arnd Bergmann

Disk /dev/sdc: 8 GB, 8011422720 bytes 255 heads, 63 sectors/track, 974 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 1 973 7815591 b FAT32 arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 align 1073741824 pre 614µs on 711µs post 616µs diff 96.2µs align 536870912 pre 599µs on 702µs post 597µs diff 104µs align 268435456 pre 591µs on 717µs post 592µs diff 126µs align 134217728 pre 598µs on 686µs post 590µs diff 92.2µs align 67108864 pre 595µs on 688µs post 596µs diff 92.2µs align 33554432 pre 600µs on 722µs post 595µs diff 124µs align 16777216 pre 595µs on 705µs post 591µs diff 112µs align 8388608 pre 594µs on 672µs post 601µs diff 74.1µs align 4194304 pre 611µs on 706µs post 616µs diff 92.6µs align 2097152 pre 611µs on 722µs post 611µs diff 110µs align 1048576 pre 603µs on 619µs post 619µs diff 7.93µs align 524288 pre 613µs on 616µs post 615µs diff 1.22µs align 262144 pre 610µs on 614µs post 617µs diff 923ns align 131072 pre 611µs on 617µs post 614µs diff 4.7µs align 65536 pre 614µs on 619µs post 620µs diff 1.61µs align 32768 pre 609µs on 618µs post 615µs diff 5.75µs align 16384 pre 612µs on 617µs post 617µs diff 2.55µs align 8192 pre 609µs on 611µs post 609µs diff 1.91µs align 4096 pre 605µs on 604µs post 606µs diff -1900ns align 2048 pre 609µs on 617µs post 616µs diff 4.75µs arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --open-au-nr=1 --blocksize=512 2MiB 15.9M/s 1MiB 15.8M/s 512KiB 15.5M/s 256KiB 15.5M/s 128KiB 13.8M/s 64KiB 17.2M/s 32KiB 16.5M/s 16KiB 14.8M/s 8KiB 5.39M/s 4KiB 2.78M/s 2KiB 1.41M/s 1KiB 827K/s 512B 440K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --open-au-nr=3 --blocksize=512 2MiB 15.7M/s 1MiB 10.2M/s 512KiB 15.6M/s 256KiB 15.7M/s 128KiB 13.9M/s 64KiB 17.5M/s 32KiB 16.8M/s 16KiB 14.6M/s 8KiB 5.4M/s 4KiB 2.7M/s 2KiB 1.41M/s 1KiB 814K/s 512B 442K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --random --open-au-nr=3 2MiB 15.8M/s 1MiB 11M/s 512KiB 5.81M/s 256KiB 4.11M/s 128KiB 5.5M/s 64KiB 5.85M/s 32KiB 2.97M/s 16KiB 2.69M/s 8KiB 1.68M/s (again:) arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --random --open-au-nr=3 2MiB 5.2M/s 1MiB 5.2M/s 512KiB 5.13M/s 256KiB 5.19M/s 128KiB 4.89M/s 64KiB 4.07M/s 32KiB 3.83M/s 16KiB 2.89M/s 8KiB 1.61M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --open-au-nr=3 2MiB 5.94M/s 1MiB 4.58M/s 512KiB 5.97M/s 256KiB 5.09M/s 128KiB 5.9M/s 64KiB 5.66M/s 32KiB 9.88M/s 16KiB 14.8M/s 8KiB 5.42M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --open-au-nr=3 2MiB 15.8M/s 1MiB 16M/s 512KiB 16M/s 256KiB 15.7M/s 128KiB 13.8M/s 64KiB 17.7M/s 32KiB 16.8M/s 16KiB 14.8M/s 8KiB 5.2M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --open-au-nr=4 2MiB 11.4M/s 1MiB 11.2M/s 512KiB 4.9M/s 256KiB 2.2M/s 128KiB 941K/s 64KiB 433K/s 32KiB 214K/s 16KiB 107K/s 8KiB 53.2K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --open-au-nr=4 --random 2MiB 6.25M/s 1MiB 6.79M/s 512KiB 4.98M/s 256KiB 4.19M/s 128KiB 4.62M/s 64KiB 5.88M/s 32KiB 3.39M/s 16KiB 3.2M/s 8KiB 1.42M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --open-au --blocksize=8192 --open-au-nr=5 --random 2MiB 6.84M/s 1MiB 6.59M/s 512KiB 4.48M/s 256KiB 3.33M/s 128KiB 2.57M/s 64KiB 1.45M/s 32KiB 780K/s 16KiB 398K/s 8KiB 199K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=2097152 /dev/sdc --blocksize=8192 -f --fat-nr=8 2MiB 16M/s 16.1M/s 15.9M/s 16M/s 15.8M/s 16M/s 15.8M/s 16M/s 1MiB 16.1M/s 16M/s 16.3M/s 16.1M/s 15.7M/s 16M/s 16.3M/s 16.2M/s 512KiB 15.9M/s 16.1M/s 16.2M/s 16M/s 16M/s 16.1M/s 16.1M/s 15.9M/s 256KiB 16M/s 15.4M/s 15.7M/s 15.8M/s 15.7M/s 15.5M/s 15.9M/s 16.1M/s 128KiB 14.1M/s 14M/s 14M/s 14.1M/s 14.3M/s 14M/s 14M/s 14M/s 64KiB 17.5M/s 17.7M/s 17.9M/s 17.9M/s 17.9M/s 17.8M/s 17.9M/s 17.9M/s 32KiB 16.8M/s 16.8M/s 17M/s 16.8M/s 16.9M/s 16.7M/s 16.6M/s 16.7M/s 16KiB 14.7M/s 14.8M/s 14.8M/s 14.9M/s 14.9M/s 14.9M/s 10.8M/s 14.8M/s 8KiB 5.55M/s 5.51M/s 5.43M/s 5.49M/s 5.55M/s 5.51M/s 5.49M/s 5.49M/s

15 years, 1 month

WIFI + TV mobile phone with the best price

by Picasa Web Albums

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15 years, 1 month

USB Stick: 8GB SanDisk Cruzer Micro (2008)

by Sitsofe Wheeler

I'm not really sure how to generate useful results so here's what I've got so far: # lsusb Bus 001 Device 004: ID 0781:5151 SanDisk Corp. Cruzer Micro Flash Drive # ./flashbench -a /dev/sdb --blocksize=1024 align 2147483648 pre 687µs on 599µs post 495µs diff 7.44µs align 1073741824 pre 635µs on 657µs post 499µs diff 90.3µs align 536870912 pre 601µs on 634µs post 495µs diff 86.1µs align 268435456 pre 602µs on 635µs post 490µs diff 89.5µs align 134217728 pre 621µs on 638µs post 496µs diff 79.5µs align 67108864 pre 602µs on 636µs post 509µs diff 80.4µs align 33554432 pre 606µs on 622µs post 494µs diff 71.8µs align 16777216 pre 614µs on 625µs post 498µs diff 69.3µs align 8388608 pre 602µs on 620µs post 490µs diff 73.2µs align 4194304 pre 601µs on 637µs post 508µs diff 83µs align 2097152 pre 601µs on 653µs post 495µs diff 106µs align 1048576 pre 494µs on 584µs post 511µs diff 81.5µs align 524288 pre 491µs on 510µs post 495µs diff 17µs align 262144 pre 491µs on 511µs post 494µs diff 18.2µs align 131072 pre 493µs on 510µs post 494µs diff 16.3µs align 65536 pre 495µs on 513µs post 494µs diff 18.8µs align 32768 pre 490µs on 511µs post 489µs diff 21.6µs align 16384 pre 493µs on 511µs post 494µs diff 17.9µs align 8192 pre 511µs on 514µs post 495µs diff 11µs align 4096 pre 538µs on 530µs post 496µs diff 12.9µs align 2048 pre 506µs on 515µs post 513µs diff 5.52µs # ./flashbench -f /dev/sdb 4MiB 7.41M/s 7.35M/s 7.37M/s 7.33M/s 7.47M/s 7.39M/s 2MiB 7.37M/s 7.38M/s 7.42M/s 7.3M/s 7.1M/s 4.45M/s 1MiB 7.21M/s 7.06M/s 7.05M/s 7.07M/s 7.14M/s 7.22M/s 512KiB 6.97M/s 6.93M/s 6.92M/s 6.79M/s 6.95M/s 6.95M/s 256KiB 7M/s 6.82M/s 6.95M/s 6.89M/s 7.02M/s 6.71M/s 128KiB 7.51M/s 7.8M/s 7.64M/s 7.43M/s 7.6M/s 7.6M/s 64KiB 10.4M/s 10.2M/s 10.1M/s 10.1M/s 10.1M/s 10.2M/s 32KiB 4.53M/s 4.55M/s 4.48M/s 4.53M/s 4.47M/s 4.45M/s 16KiB 3.77M/s 3.73M/s 3.75M/s 3.75M/s 3.74M/s 3.75M/s A further question is how do I use these results so as to get good performance? Should I be setting the first partition in any particular way and/or passing any special options to mkfs.vfat? -- Sitsofe

15 years, 1 month

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