Disk /dev/mmcblk0: 8017 MB, 8017412096 bytes 255 heads, 63 sectors/track, 974 cylinders, total 15659008 sectors Units = sectors of 1 * 512 = 512 bytes Disk identifier: 0x00000000

Device Boot Start End Blocks Id System /dev/mmcblk0p1 63 524350 262144 b W95 FAT32 Partition 1 has different physical/logical endings: phys=(1023, 254, 63) logical=(32, 163, 2) /dev/mmcblk0p2 524412 15658964 7567276+ 83 Linux

==> /sys/block/mmcblk0/device/block <== head: error reading `/sys/block/mmcblk0/device/block': Is a directory

==> /sys/block/mmcblk0/device/cid <== 1a505175534420201025503155009200

==> /sys/block/mmcblk0/device/csd <== 400e00325f5900003bbb7f800a400000

==> /sys/block/mmcblk0/device/date <== 02/2009

==> /sys/block/mmcblk0/device/driver <== head: error reading `/sys/block/mmcblk0/device/driver': Is a directory

==> /sys/block/mmcblk0/device/fwrev <== 0x0

==> /sys/block/mmcblk0/device/hwrev <== 0x1

==> /sys/block/mmcblk0/device/manfid <== 0x00001a

==> /sys/block/mmcblk0/device/name <== uSD

==> /sys/block/mmcblk0/device/oemid <== 0x5051

==> /sys/block/mmcblk0/device/power <== head: error reading `/sys/block/mmcblk0/device/power': Is a directory

==> /sys/block/mmcblk0/device/scr <== 0235000000000000

==> /sys/block/mmcblk0/device/serial <== 0x25503155

==> /sys/block/mmcblk0/device/subsystem <== head: error reading `/sys/block/mmcblk0/device/subsystem': Is a directory

==> /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 ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=32 align 805306368 pre 597µs on 677µs post 576µs diff 90.1µs align 536870912 pre 579µs on 691µs post 590µs diff 106µs align 402653184 pre 587µs on 648µs post 580µs diff 64.9µs align 268435456 pre 600µs on 688µs post 585µs diff 95.5µs align 201326592 pre 590µs on 677µs post 584µs diff 90µs align 134217728 pre 591µs on 683µs post 587µs diff 94.2µs align 100663296 pre 598µs on 687µs post 590µs diff 93µs align 67108864 pre 593µs on 679µs post 588µs diff 88.5µs align 50331648 pre 592µs on 693µs post 592µs diff 100µs align 33554432 pre 595µs on 685µs post 594µs diff 90µs align 25165824 pre 594µs on 688µs post 586µs diff 98.4µs align 16777216 pre 586µs on 676µs post 596µs diff 85µs align 12582912 pre 595µs on 683µs post 589µs diff 91.2µs align 8388608 pre 591µs on 689µs post 591µs diff 97.8µs align 6291456 pre 578µs on 682µs post 586µs diff 99.4µs align 4194304 pre 598µs on 696µs post 596µs diff 98.8µs align 3145728 pre 585µs on 657µs post 606µs diff 61.7µs align 2097152 pre 605µs on 678µs post 578µs diff 86.2µs align 1572864 pre 582µs on 656µs post 600µs diff 65.6µs align 1048576 pre 584µs on 657µs post 607µs diff 61.6µs align 786432 pre 590µs on 652µs post 604µs diff 54.9µs align 524288 pre 583µs on 650µs post 599µs diff 59µs align 393216 pre 588µs on 649µs post 599µs diff 55.6µs align 262144 pre 582µs on 646µs post 600µs diff 55µs ^C arnd@klappe2:~/git/flashbench$ ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=1 2MiB 4.48M/s 1MiB 4.15M/s 512KiB 4.16M/s 256KiB 4.45M/s 128KiB 4.76M/s 64KiB 8.51M/s 32KiB 7.23M/s 16KiB 6.18M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=1 2MiB 8.79M/s 1MiB 4.22M/s 512KiB 4.19M/s 256KiB 4.46M/s 128KiB 4.76M/s 64KiB 8.73M/s 32KiB 7.73M/s 16KiB 6.43M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=2 2MiB 8.71M/s 1MiB 6.25M/s 512KiB 8.8M/s 256KiB 8.84M/s 128KiB 8.82M/s 64KiB 8.79M/s 32KiB 7.79M/s 16KiB 6.4M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=4 2MiB 8.71M/s 1MiB 6.27M/s 512KiB 8.65M/s 256KiB 8.76M/s 128KiB 8.71M/s 64KiB 8.65M/s 32KiB 7.61M/s 16KiB 6.23M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=6 2MiB 8.82M/s 1MiB 4.86M/s 512KiB 2.06M/s 256KiB 1.15M/s 128KiB 617K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=5 2MiB 5.31M/s 1MiB 7.51M/s 512KiB 8.74M/s 256KiB 8.7M/s 128KiB 8.77M/s 64KiB 8.71M/s 32KiB 7.62M/s 16KiB 6.23M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=5 --blocksize=512 2MiB 8M/s 1MiB 8.74M/s 512KiB 8.82M/s 256KiB 8.86M/s 128KiB 8.8M/s 64KiB 8.73M/s 32KiB 7.6M/s 16KiB 5.67M/s 8KiB 3.57M/s 4KiB 1.77M/s 2KiB 847K/s 1KiB 428K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=5 --blocksize=512 --random 2MiB 7.04M/s 1MiB 4.17M/s 512KiB 4.09M/s 256KiB 4.21M/s 128KiB 4.2M/s 64KiB 4.17M/s 32KiB 3.5M/s 16KiB 2.78M/s 8KiB 1.83M/s 4KiB 984K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --open-au --open-au-nr=6 --blocksize=512 --random 2MiB 5.26M/s 1MiB 4.43M/s 512KiB 2.17M/s 256KiB 1.18M/s ^C

arnd@klappe2:~/git/flashbench$ sudo ./flashbench /dev/mmcblk0 --erasesize=2097152 --blocksize=512 --findfat --random --fat-nr=9 2MiB 4.98M/s 8.8M/s 4.92M/s 4.94M/s 4.93M/s 4.9M/s 8.85M/s 8.93M/s 8.87M/s 1MiB 4.28M/s 4.22M/s 4.28M/s 4.25M/s 4.23M/s 3.09M/s 3.22M/s 3.03M/s 3.08M/s 512KiB 3.08M/s 3M/s 3.5M/s 3.04M/s 3.07M/s 3.07M/s 3.07M/s 3.09M/s 3.06M/s 256KiB 3.06M/s 3.09M/s 3.07M/s 3.06M/s 3.07M/s 3.06M/s 3.08M/s 3.06M/s 3.07M/s 128KiB 3.06M/s 3.04M/s 3.05M/s 3.05M/s 3.05M/s 3.06M/s 3.05M/s 3.08M/s 3.06M/s 64KiB 3.03M/s 3.05M/s 3.06M/s 3.06M/s 3.09M/s 3.06M/s 3.06M/s 3.03M/s 3.06M/s 32KiB 2.69M/s 2.7M/s 2.68M/s 2.71M/s 2.69M/s 2.71M/s 2.71M/s 2.69M/s 2.69M/s