[Flashbench] 16 GB extrememory HyPerformance (2009)

==> /sys/block/mmcblk0/device/cid <== 1d41445344202020102810091d009c00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900007b7d7f800a400000 ==> /sys/block/mmcblk0/device/date <== 12/2009 ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001d ==> /sys/block/mmcblk0/device/name <== SD ==> /sys/block/mmcblk0/device/oemid <== 0x4144 ==> /sys/block/mmcblk0/device/power <== head: error reading `/sys/block/mmcblk0/device/power': Is a directory ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235800000000000 ==> /sys/block/mmcblk0/device/serial <== 0x2810091d ==> /sys/block/mmcblk0/device/subsystem <== head: error reading `/sys/block/mmcblk0/device/subsystem': Is a directory ==> /sys/block/mmcblk0/device/type <== SD

Disk /dev/mmcblk0: 16.6 GB, 16574840832 bytes 4 heads, 16 sectors/track, 505824 cylinders, total 32372736 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: 0x00092313

Device Boot Start End Blocks Id System /dev/mmcblk0p1 8192 1023999 507904 82 Linux swap / Solaris Partition 1 does not end on cylinder boundary. /dev/mmcblk0p2 1024000 31342591 15159296 83 Linux Partition 2 does not end on cylinder boundary.

arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 align 3221225472 pre 1.09ms on 1.45ms post 1.07ms diff 373µs align 2147483648 pre 1.1ms on 1.48ms post 1.08ms diff 389µs align 1610612736 pre 1.03ms on 1.31ms post 1.08ms diff 255µs align 1073741824 pre 1.1ms on 1.51ms post 1.08ms diff 411µs align 805306368 pre 1.04ms on 1.31ms post 1.08ms diff 245µs align 536870912 pre 1.01ms on 1.3ms post 1.07ms diff 259µs align 402653184 pre 1.01ms on 1.36ms post 1.06ms diff 326µs align 268435456 pre 994µs on 1.36ms post 1.08ms diff 329µs align 201326592 pre 973µs on 1.35ms post 1.06ms diff 337µs align 134217728 pre 994µs on 1.36ms post 1.07ms diff 327µs align 100663296 pre 978µs on 1.36ms post 1.07ms diff 333µs align 67108864 pre 993µs on 1.35ms post 1.07ms diff 318µs align 50331648 pre 980µs on 1.36ms post 1.07ms diff 336µs align 33554432 pre 994µs on 1.36ms post 1.07ms diff 322µs align 25165824 pre 995µs on 1.36ms post 1.08ms diff 320µs align 16777216 pre 997µs on 1.32ms post 1.07ms diff 287µs align 12582912 pre 961µs on 1.37ms post 1.07ms diff 350µs align 8388608 pre 976µs on 1.35ms post 1.07ms diff 330µs align 6291456 pre 1.14ms on 1.24ms post 1.14ms diff 95µs align 4194304 pre 943µs on 1.31ms post 1.07ms diff 297µs align 3145728 pre 967µs on 1.17ms post 989µs diff 193µs align 2097152 pre 1.05ms on 1.09ms post 1.05ms diff 43.8µs align 1572864 pre 1.05ms on 1.07ms post 1.03ms diff 33.1µs align 1048576 pre 1.06ms on 1.11ms post 1.04ms diff 59.9µs align 786432 pre 1.04ms on 1.1ms post 1.03ms diff 63.5µs align 524288 pre 1.08ms on 1.09ms post 1.03ms diff 30.7µs align 393216 pre 1.06ms on 1.06ms post 1.05ms diff 4.74µs align 262144 pre 1.07ms on 1.1ms post 1.04ms diff 50.4µs align 196608 pre 1.05ms on 1.06ms post 1.06ms diff 4.11µs align 131072 pre 1.04ms on 1.09ms post 1.03ms diff 49.6µs align 98304 pre 1.07ms on 1.07ms post 954µs diff 63.3µs align 65536 pre 1.08ms on 1.1ms post 1.04ms diff 38.5µs align 49152 pre 1.04ms on 1.06ms post 998µs diff 39.8µs align 32768 pre 1.03ms on 1.04ms post 942µs diff 53.8µs align 24576 pre 969µs on 981µs post 966µs diff 13.6µs align 16384 pre 1.07ms on 1.09ms post 974µs diff 70µs align 12288 pre 999µs on 1ms post 996µs diff 4.72µs ^C arnd@klappe2:~/git/flashbench$ ./flashbench --erasesize=4194304 --blocksize=2048 /dev/mmcblk0 --open-au --open-au-nr=1 sched_setscheduler: Operation not permitted /dev/mmcblk0: Permission denied arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=2048 /dev/mmcblk0 --open-au --open-au-nr=1 4MiB 5.19M/s 2MiB 9.33M/s 1MiB 7.56M/s 512KiB 6.99M/s 256KiB 8.29M/s 128KiB 8.11M/s 64KiB 7.33M/s 32KiB 5.84M/s 16KiB 3.64M/s 8KiB 1.55M/s 4KiB 797K/s 2KiB 459K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=2048 /dev/mmcblk0 --open-au --open-au-nr=1 4MiB 8.65M/s 2MiB 7.49M/s 1MiB 7.89M/s 512KiB 8.51M/s 256KiB 8.32M/s 128KiB 7.41M/s 64KiB 7.88M/s 32KiB 5.61M/s 16KiB 3.5M/s 8KiB 1.8M/s 4KiB 819K/s 2KiB 455K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=2048 /dev/mmcblk0 --open-au --open-au-nr=1 --random 4MiB 4.68M/s 2MiB 7.64M/s 1MiB 8.07M/s 512KiB 8.85M/s 256KiB 8M/s 128KiB 7.52M/s 64KiB 8.3M/s 32KiB 5.84M/s 16KiB 3.79M/s 8KiB 1.51M/s 4KiB 729K/s 2KiB 357K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=2048 /dev/mmcblk0 --open-au --open-au-nr=2 --random 4MiB 4.91M/s 2MiB 8.44M/s 1MiB 7.47M/s 512KiB 7.65M/s 256KiB 8.4M/s 128KiB 8.58M/s 64KiB 7.14M/s 32KiB 5.4M/s 16KiB 3.46M/s 8KiB 1.42M/s 4KiB 699K/s 2KiB 343K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=4096 /dev/mmcblk0 --open-au --open-au-nr=4 --random 4MiB 6.68M/s 2MiB 6.92M/s 1MiB 7.46M/s 512KiB 7.72M/s 256KiB 8.57M/s 128KiB 8.31M/s 64KiB 7.12M/s 32KiB 5.48M/s 16KiB 3.25M/s 8KiB 1.41M/s 4KiB 700K/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=8192 /dev/mmcblk0 --open-au --open-au-nr=5 --random 4MiB 8.84M/s 2MiB 6.45M/s 1MiB 7.48M/s 512KiB 7.89M/s 256KiB 8.61M/s 128KiB 8.07M/s 64KiB 7.2M/s 32KiB 5.42M/s 16KiB 3.53M/s 8KiB 1.41M/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=8192 /dev/mmcblk0 --open-au --open-au-nr=6 --random 4MiB 8.45M/s 2MiB 3.78M/s 1MiB 2.12M/s 512KiB 1.18M/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=8192 /dev/mmcblk0 --open-au --open-au-nr=8 --random 4MiB 6.17M/s 2MiB 3.73M/s 1MiB 2.12M/s 512KiB 1.18M/s ^C

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=8192 /dev/mmcblk0 --open-au --open-au-nr=5 4MiB 7.98M/s 2MiB 8.07M/s 1MiB 8.21M/s 512KiB 9.03M/s 256KiB 9.35M/s 128KiB 7.77M/s 64KiB 8.03M/s 32KiB 5.71M/s 16KiB 3.85M/s 8KiB 1.57M/s

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=4194304 --blocksize=8192 /dev/mmcblk0 --open-au --open-au-nr=6 4MiB 8.58M/s 2MiB 4.29M/s 1MiB 2.12M/s 512KiB 1.18M/s ^C

arnd@klappe2:~/git/flashbench$ sudo ./flashbench --erasesize=$[4194304] --blocksize=8192 /dev/mmcblk0 --random --findfat --fat-nr=6 4MiB 9.05M/s 8.88M/s 8.47M/s 8.53M/s 7.29M/s 9.03M/s 2MiB 8.78M/s 8.79M/s 9.03M/s 8.91M/s 7.66M/s 9.04M/s 1MiB 7.44M/s 7.39M/s 7.23M/s 7.33M/s 8.55M/s 7.26M/s 512KiB 7.39M/s 7.47M/s 7.56M/s 7.46M/s 8.53M/s 7.48M/s 256KiB 8.82M/s 8.41M/s 8.64M/s 8.75M/s 7.34M/s 8.7M/s 128KiB 8.74M/s 8.73M/s 8.63M/s 8.76M/s 7.66M/s 8.74M/s 64KiB 7.17M/s 7.36M/s 7.36M/s 7.34M/s 8.51M/s 7.35M/s 32KiB 5.79M/s 5.82M/s 5.78M/s 5.85M/s 5.66M/s 5.83M/s 16KiB 3.73M/s 3.72M/s 3.77M/s 3.67M/s 3.64M/s 3.65M/s 8KiB 1.46M/s 1.48M/s 1.46M/s 1.47M/s 1.47M/s 1.47M/s