[Flashbench] Sandisk Extreme III (2007)

[Arnd Bergmann]

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

==> /sys/block/mmcblk0/device/cid <==
03534453443034478030cd99b2007600

==> /sys/block/mmcblk0/device/csd <==
400e00325b5900001e5c7f800a404000

==> /sys/block/mmcblk0/device/date <==
06/2007

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

==> /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 <==
SD04G

==> /sys/block/mmcblk0/device/oemid <==
0x5344

==> /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 <==
0235000000000000

==> /sys/block/mmcblk0/device/serial <==
0x30cd99b2

==> /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=SD04G
MODALIAS=mmc:block

$ sudo ./flashbench -a /dev/mmcblk0 --blocksize 1024 align 805306368 pre 781µs       on 816µs        post 639µs      diff 106µs
align 536870912 pre 783µs       on 836µs        post 662µs      diff 113µs
align 402653184 pre 823µs       on 857µs        post 665µs      diff 113µs
align 268435456 pre 831µs       on 867µs        post 659µs      diff 122µs
align 201326592 pre 768µs       on 806µs        post 609µs      diff 117µs
align 134217728 pre 833µs       on 868µs        post 663µs      diff 120µs
align 100663296 pre 777µs       on 806µs        post 611µs      diff 111µs
align 67108864  pre 722µs       on 785µs        post 592µs      diff 128µs
align 50331648  pre 706µs       on 782µs        post 671µs      diff 93.7µs
align 33554432  pre 744µs       on 797µs        post 576µs      diff 136µs
align 25165824  pre 554µs       on 649µs        post 572µs      diff 85.3µs
align 16777216  pre 637µs       on 681µs        post 567µs      diff 79.4µs
align 12582912  pre 648µs       on 677µs        post 581µs      diff 62.2µs
align 8388608   pre 650µs       on 678µs        post 582µs      diff 61.8µs
align 6291456   pre 714µs       on 747µs        post 586µs      diff 96.7µs
align 4194304   pre 729µs       on 772µs        post 662µs      diff 76.5µs
align 3145728   pre 650µs       on 684µs        post 586µs      diff 65.4µs
align 2097152   pre 720µs       on 747µs        post 582µs      diff 95.8µs
align 1572864   pre 731µs       on 745µs        post 669µs      diff 45.3µs
align 1048576   pre 781µs       on 837µs        post 658µs      diff 117µs
align 786432    pre 690µs       on 692µs        post 671µs      diff 11.1µs
align 524288    pre 732µs       on 745µs        post 666µs      diff 45.7µs
align 393216    pre 704µs       on 686µs        post 673µs      diff -1998ns
align 262144    pre 694µs       on 689µs        post 671µs      diff 6.82µs
align 196608    pre 701µs       on 687µs        post 674µs      diff -594ns
align 131072    pre 690µs       on 685µs        post 670µs      diff 5.34µs
align 98304     pre 702µs       on 690µs        post 670µs      diff 4.34µs
align 65536     pre 704µs       on 685µs        post 670µs      diff -2468ns
align 49152     pre 685µs       on 697µs        post 658µs      diff 25.7µs
align 32768     pre 701µs       on 688µs        post 671µs      diff 2.15µs
align 24576     pre 604µs       on 679µs        post 675µs      diff 39.4µs
align 16384     pre 694µs       on 691µs        post 656µs      diff 15.7µs
align 12288     pre 651µs       on 656µs        post 642µs      diff 9.39µs
align 8192      pre 625µs       on 669µs        post 671µs      diff 21µs
align 6144      pre 641µs       on 626µs        post 632µs      diff -10210n



sudo ./flashbench --open-au --erasesize=$[2*512*1024] --blocksize=8192 /dev/mmcblk0 --open-au-nr=3 --random
1MiB    8.38M/s 
512KiB  8.38M/s 
256KiB  7.01M/s 
128KiB  7.06M/s 
64KiB   6.93M/s 
32KiB   5.54M/s 
16KiB   5.42M/s 
8KiB    2.26M/s 

 --blocksize=8192 /dev/mmcblk0 --open-au-nr=3 --random
1MiB    6.85M/s 
512KiB  8.35M/s 
256KiB  8.37M/s 
128KiB  7.01M/s 
64KiB   7.01M/s 
32KiB   6.67M/s 
16KiB   5.43M/s 
8KiB    2.26M/s 
arnd at klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] --blocksize=8192 /dev/mmcblk0 --open-au-nr=4 --random
1MiB    7.89M/s 
512KiB  9.3M/s  
256KiB  7.98M/s 
128KiB  4.76M/s 
64KiB   3.55M/s 
^C
arnd at klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] --blocksize=8192 /dev/mmcblk0 --open-au-nr=4 --random
1MiB    7.98M/s 
512KiB  8.01M/s 
256KiB  7.04M/s 
128KiB  5.2M/s  
64KiB   3.38M/s 
32KiB   1.95M/s 
16KiB   1.01M/s 
8KiB    498K/s  

arnd at klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] --blocksize=8192 /dev/mmcblk0 --open-au-nr=7
1MiB    12M/s   
512KiB  10.7M/s 
256KiB  10.6M/s 
128KiB  10.6M/s 
64KiB   10.6M/s 
32KiB   12M/s   
16KiB   8.91M/s 
8KiB    6.15M/s 
arnd at klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] --blocksize=8192 /dev/mmcblk0 --open-au-nr=10
1MiB    12.3M/s 
512KiB  6.71M/s 
256KiB  3.46M/s 
128KiB  1.68M/s 

arnd at klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*1024] --blocksize=512 /dev/mmcblk0 --open-au-nr=7 
1MiB    8.21M/s 
512KiB  10.5M/s 
256KiB  10.4M/s 
128KiB  10.4M/s 
64KiB   10.5M/s 
32KiB   11.7M/s 
16KiB   8.93M/s 
8KiB    6.1M/s  
4KiB    3.32M/s 
2KiB    1.62M/s