Flashbench-results

flashbench-results@lists.linaro.org

174 discussions

by Arnd Bergmann

# sudo fdisk /dev/sdc -lu Disk /dev/sdc: 2 GB, 2097446400 bytes 255 heads, 63 sectors/track, 255 cylinders, total 4096575 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 63 144584 72261 e FAT16 LBA /dev/sdc2 144585 4096574 1967962 83 Linux $ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 268435456 pre 611µs on 687µs post 608µs diff 77.3µs align 134217728 pre 598µs on 695µs post 597µs diff 97.8µs align 67108864 pre 601µs on 605µs post 601µs diff 4.26µs align 33554432 pre 598µs on 607µs post 602µs diff 7.52µs align 16777216 pre 600µs on 604µs post 603µs diff 3.1µs align 8388608 pre 603µs on 609µs post 606µs diff 4.29µs align 4194304 pre 589µs on 593µs post 591µs diff 3.13µs align 2097152 pre 593µs on 596µs post 591µs diff 3.28µs align 1048576 pre 606µs on 602µs post 592µs diff 3.37µs align 524288 pre 604µs on 610µs post 610µs diff 3.38µs align 262144 pre 588µs on 591µs post 591µs diff 1.42µs align 131072 pre 585µs on 606µs post 584µs diff 20.7µs align 65536 pre 592µs on 590µs post 590µs diff -344ns align 32768 pre 591µs on 587µs post 588µs diff -2848ns align 16384 pre 588µs on 588µs post 585µs diff 1.95µs align 8192 pre 591µs on 586µs post 590µs diff -4470ns align 4096 pre 586µs on 589µs post 584µs diff 3.41µs align 2048 pre 594µs on 593µs post 590µs diff 1.21µs $ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 8192] 8MiB 5.21M/s 4MiB 5.23M/s 2MiB 5.24M/s 1MiB 5.24M/s 512KiB 5.31M/s 256KiB 5.28M/s 128KiB 5.27M/s 64KiB 5.24M/s 32KiB 5.21M/s 16KiB 5.09M/s 8KiB 4.85M/s 4KiB 4.43M/s 2KiB 3.9M/s 1KiB 2.64M/s 512B 1.35M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 8192] --random 8MiB 5.25M/s 4MiB 5.24M/s 2MiB 5.23M/s 1MiB 5.24M/s 512KiB 5.26M/s 256KiB 5.34M/s 128KiB 5.26M/s 64KiB 3.2M/s 32KiB 1.8M/s 16KiB 970K/s 8KiB 509K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 128] --open-au-nr=2 128KiB 3.1M/s 64KiB 3.68M/s 32KiB 2.01M/s 16KiB 1.08M/s 8KiB 632K/s 4KiB 4.43M/s 2KiB 3.91M/s 1KiB 2.65M/s 512B 1.35M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 512] --open-au-nr=4 512KiB 5.28M/s 256KiB 5.13M/s 128KiB 5.4M/s 64KiB 4.01M/s 32KiB 3.36M/s 16KiB 4.92M/s 8KiB 5.02M/s 4KiB 4.32M/s 2KiB 3.98M/s 1KiB 2.68M/s 512B 1.36M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 512] --open-au-nr=5 512KiB 4.95M/s 256KiB 5.47M/s 128KiB 5.19M/s 64KiB 3.8M/s 32KiB 2.27M/s 16KiB 1.35M/s 8KiB 762K/s 4KiB 465K/s 2KiB 293K/s 1KiB 180K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 512] --open-au-nr=6 512KiB 5.2M/s 256KiB 5.44M/s 128KiB 5.23M/s 64KiB 3.67M/s 32KiB 2.14M/s 16KiB 1.22M/s 8KiB 676K/s 4KiB 377K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 1024] --open-au-nr=4 1MiB 5.02M/s 512KiB 5.4M/s 256KiB 5.28M/s 128KiB 5.24M/s 64KiB 5.26M/s 32KiB 5.19M/s 16KiB 5.25M/s 8KiB 4.85M/s 4KiB 4.53M/s 2KiB 3.89M/s 1KiB 2.66M/s 512B 1.35M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 128] --open-au-nr=4 --random 128KiB 4.62M/s 64KiB 4.05M/s 32KiB 3.63M/s 16KiB 2.2M/s 8KiB 1.44M/s 4KiB 1.02M/s 2KiB 3.24M/s 1KiB 2.6M/s 512B 1.34M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 128] --open-au-nr=4 --random 128KiB 5.29M/s 64KiB 5.28M/s 32KiB 5.24M/s 16KiB 5.12M/s 8KiB 4.79M/s 4KiB 4.44M/s 2KiB 3.91M/s 1KiB 2.64M/s 512B 1.35M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc2 --open-au --blocksize=512 --erasesize=$[1024 * 128] --open-au-nr=5 --random 128KiB 5.3M/s 64KiB 4.18M/s 32KiB 4.66M/s 16KiB 2.67M/s 8KiB 1.48M/s 4KiB 793K/s 2KiB 406K/s 1KiB 197K/s

15 years, 5 months

PQI 512MB compactflash

by Arnd Bergmann

Disk /dev/sdc: 515 MB, 515579904 bytes 16 heads, 63 sectors/track, 999 cylinders, total 1006992 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 63 1005983 502960 6 FAT16 arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize=1024 --count=100 align 67108864 pre 827µs on 990µs post 786µs diff 184µs align 33554432 pre 811µs on 992µs post 812µs diff 181µs align 16777216 pre 798µs on 992µs post 814µs diff 186µs align 8388608 pre 809µs on 994µs post 805µs diff 187µs align 4194304 pre 812µs on 995µs post 827µs diff 175µs align 2097152 pre 803µs on 986µs post 813µs diff 178µs align 1048576 pre 805µs on 849µs post 798µs diff 47.2µs align 524288 pre 809µs on 857µs post 811µs diff 47.5µs align 262144 pre 808µs on 861µs post 814µs diff 50.2µs align 131072 pre 804µs on 852µs post 812µs diff 44.1µs align 65536 pre 805µs on 854µs post 814µs diff 45µs align 32768 pre 829µs on 825µs post 808µs diff 5.79µs align 16384 pre 802µs on 810µs post 818µs diff 45ns align 8192 pre 814µs on 807µs post 813µs diff -6146ns align 4096 pre 806µs on 830µs post 808µs diff 22.6µs align 2048 pre 803µs on 806µs post 807µs diff 344ns arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[2*1024*1024] /dev/sdc --blocksize=512 2MiB 4.12M/s 1MiB 4.09M/s 512KiB 4.09M/s 256KiB 4.05M/s 128KiB 4M/s 64KiB 4M/s 32KiB 3.33M/s 16KiB 2.69M/s 8KiB 2.2M/s 4KiB 1.57M/s 2KiB 946K/s 1KiB 308K/s 512B 132K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[2*1024*1024] /dev/sdc --blocksize=8192 --random 2MiB 4.12M/s 1MiB 4.12M/s 512KiB 4.1M/s 256KiB 4.07M/s 128KiB 3.96M/s 64KiB 3.93M/s 32KiB 2.35M/s 16KiB 1.31M/s 8KiB 777K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[2*1024*1024] /dev/sdc --blocksize=65536 --random --open-au-nr=4 2MiB 4.07M/s 1MiB 4.14M/s 512KiB 4.08M/s 256KiB 4.05M/s 128KiB 3.93M/s 64KiB 3.87M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[2*1024*1024] /dev/sdc --blocksize=65536 --random --open-au-nr=8 2MiB 4.08M/s 1MiB 4.12M/s 512KiB 4.05M/s 256KiB 4.01M/s 128KiB 3.85M/s 64KiB 3.72M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*512] /dev/sdc --blocksize=2048 --open-au-nr=8 512KiB 3.96M/s 256KiB 4.02M/s 128KiB 3.92M/s 64KiB 3.77M/s 32KiB 1.71M/s 16KiB 846K/s 8KiB 428K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*256] /dev/sdc --blocksize=2048 --open-au-nr=5 256KiB 4.09M/s 128KiB 3.82M/s 64KiB 3.72M/s 32KiB 3.65M/s 16KiB 2.9M/s 8KiB 2.1M/s 4KiB 1.46M/s 2KiB 869K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*256] /dev/sdc --blocksize=2048 --open-au-nr=6 256KiB 4.08M/s 128KiB 4.05M/s 64KiB 4.02M/s 32KiB 2.78M/s 16KiB 1.57M/s 8KiB 893K/s 4KiB 501K/s 2KiB 273K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*256] /dev/sdc --blocksize=2048 --open-au-nr=4 --random 256KiB 4.07M/s 128KiB 3.84M/s 64KiB 3.8M/s 32KiB 2.95M/s 16KiB 2.17M/s 8KiB 1.66M/s 4KiB 1.16M/s 2KiB 684K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[1024*256] /dev/sdc --blocksize=2048 --open-au-nr=5 --random 256KiB 3.99M/s 128KiB 3.82M/s 64KiB 3.7M/s 32KiB 2.85M/s 16KiB 1.66M/s 8KiB 745K/s 4KiB 369K/s 2KiB 200K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --erasesize=$[1024*256] /dev/sdc --blocksize=2048 --findfat --fat-nr=8 --random 256KiB 4.44M/s 4.01M/s 4.31M/s 4.04M/s 4.33M/s 4.02M/s 4.34M/s 3.52M/s 128KiB 3.94M/s 3.91M/s 4.11M/s 3.95M/s 4.27M/s 3.96M/s 4.26M/s 3.39M/s 64KiB 4.12M/s 3.99M/s 4.25M/s 3.93M/s 4.33M/s 4.03M/s 4.22M/s 3.38M/s 32KiB 3.48M/s 3.51M/s 3.54M/s 2.56M/s 3.29M/s 2.03M/s 2.75M/s 2.32M/s 16KiB 2.3M/s 2.19M/s 2.81M/s 1.9M/s 2.8M/s 1.57M/s 2.71M/s 1.31M/s 8KiB 1.86M/s 1.19M/s 1.76M/s 1.23M/s 1.73M/s 1.14M/s 1.75M/s 1.24M/s 4KiB 1.18M/s 879K/s 1.23M/s 1.06M/s 1.27M/s 1.07M/s 1.24M/s 1.05M/s 2KiB 744K/s 708K/s 771K/s 778K/s 813K/s 743K/s 838K/s 767K/s

15 years, 5 months

Transcend 8 GB 133x CF (different one)

by Arnd Bergmann

Disk /dev/sdd: 8 GB, 8019099648 bytes 16 heads, 63 sectors/track, 15538 cylinders, total 15662304 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdd1 * 63 15661295 7830616 b FAT32 sudo dosfsck /dev/sdd1 dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN /dev/sdd1: 1 files, 1/244646 clusters $ sudo ./flashbench -a /dev/sdd --blocksize=1024 --count=100 align 1073741824 pre 599µs on 621µs post 599µs diff 22.6µs align 536870912 pre 581µs on 601µs post 579µs diff 21.4µs align 268435456 pre 586µs on 607µs post 583µs diff 22.1µs align 134217728 pre 590µs on 610µs post 591µs diff 19.5µs align 67108864 pre 593µs on 615µs post 597µs diff 20.4µs align 33554432 pre 584µs on 606µs post 587µs diff 20.2µs align 16777216 pre 587µs on 607µs post 588µs diff 19.4µs align 8388608 pre 583µs on 608µs post 587µs diff 23µs align 4194304 pre 583µs on 604µs post 580µs diff 23.1µs align 2097152 pre 575µs on 601µs post 587µs diff 20.2µs align 1048576 pre 587µs on 588µs post 583µs diff 3.37µs align 524288 pre 583µs on 585µs post 582µs diff 2.6µs align 262144 pre 587µs on 592µs post 592µs diff 2.17µs align 131072 pre 586µs on 585µs post 584µs diff 489ns align 65536 pre 585µs on 587µs post 586µs diff 1.63µs align 32768 pre 592µs on 594µs post 585µs diff 5.5µs align 16384 pre 587µs on 590µs post 586µs diff 3.52µs align 8192 pre 588µs on 605µs post 587µs diff 17.2µs align 4096 pre 585µs on 588µs post 587µs diff 2.27µs align 2048 pre 585µs on 583µs post 581µs diff -189ns $ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=4 --random 2MiB 16.6M/s 1MiB 8.21M/s 512KiB 4.06M/s 256KiB 2.45M/s 128KiB 1.23M/s 64KiB 631K/s 32KiB 315K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=1 --random 2MiB 7.23M/s 1MiB 7.22M/s 512KiB 6.36M/s 256KiB 7.84M/s 128KiB 4.76M/s 64KiB 4.64M/s 32KiB 4.49M/s 16KiB 4.25M/s 8KiB 3.43M/s 4KiB 2.44M/s 2KiB 1.19M/s 1KiB 589K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=1 --random 2MiB 6.61M/s 1MiB 6.22M/s 512KiB 6.12M/s 256KiB 6.29M/s 128KiB 6.18M/s 64KiB 6.23M/s 32KiB 4.88M/s 16KiB 4.74M/s 8KiB 4.14M/s 4KiB 2.41M/s 2KiB 1.19M/s 1KiB 592K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=2 --random 2MiB 7.64M/s 1MiB 12.2M/s 512KiB 8.75M/s 256KiB 4.91M/s 128KiB 4.73M/s 64KiB 4.65M/s 32KiB 3.34M/s 16KiB 4.28M/s 8KiB 3.39M/s 4KiB 2.41M/s 2KiB 1.2M/s 1KiB 587K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=2 --random 2MiB 6.41M/s 1MiB 6.55M/s 512KiB 6.3M/s 256KiB 6.18M/s 128KiB 5.77M/s 64KiB 5.76M/s 32KiB 5.46M/s 16KiB 4.79M/s 8KiB 4.26M/s 4KiB 2.46M/s 2KiB 1.19M/s 1KiB 578K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=3 --random 2MiB 9.38M/s 1MiB 3.28M/s 512KiB 6.47M/s 256KiB 1.69M/s 128KiB 1.76M/s 64KiB 971K/s 32KiB 479K/s 16KiB 264K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=1024 --erasesize=2097152 --open-au-nr=3 --random 2MiB 7.25M/s 1MiB 10.1M/s 512KiB 7.32M/s 256KiB 3.56M/s 128KiB 1.67M/s 64KiB 847K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=2097152 --open-au-nr=3 2MiB 24.2M/s 1MiB 24.2M/s 512KiB 24.1M/s 256KiB 23.1M/s 128KiB 8.03M/s 64KiB 22.6M/s 32KiB 20.1M/s 16KiB 16.4M/s 8KiB 10.9M/s 4KiB 6.48M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=2097152 --open-au-nr=4 2MiB 24.3M/s 1MiB 12.3M/s 512KiB 3.11M/s 256KiB 1.43M/s 128KiB 690K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=1048576 --open-au-nr=3 1MiB 6.41M/s 512KiB 7.56M/s 256KiB 5.67M/s 128KiB 6.82M/s 64KiB 11.2M/s 32KiB 5.43M/s 16KiB 6.74M/s 8KiB 6.59M/s 4KiB 2.98M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=1048576 --open-au-nr=4 1MiB 9.22M/s 512KiB 7.75M/s 256KiB 5.87M/s 128KiB 5.91M/s 64KiB 5.97M/s 32KiB 5.81M/s 16KiB 5.46M/s 8KiB 4.45M/s 4KiB 3.28M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=1048576 --open-au-nr=5 1MiB 6.64M/s 512KiB 6.48M/s 256KiB 6.25M/s 128KiB 5.38M/s 64KiB 4.59M/s 32KiB 5.27M/s 16KiB 4.98M/s 8KiB 4.16M/s 4KiB 3.03M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au /dev/sdd --blocksize=4096 --erasesize=1048576 --open-au-nr=6 1MiB 7.76M/s 512KiB 3.37M/s 256KiB 1.64M/s 128KiB 761K/s ^C

15 years, 5 months

Numonyx SMC02GBFK6E CF card

by Arnd Bergmann

Disk /dev/sdc: 2 GB, 2048094720 bytes 255 heads, 63 sectors/track, 249 cylinders, total 4000185 sectors Units = sectors of 1 * 512 = 512 bytes arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --erasesize=$[512*1024] --open-au-nr=1 --findfat --fat-nr=6 512KiB 3.02M/s 15.2M/s 14.8M/s 16.3M/s 16.2M/s 14.7M/s 256KiB 3.19M/s 16.7M/s 14M/s 15.5M/s 14.6M/s 14.5M/s 128KiB 2.98M/s 14.8M/s 14.1M/s 14.3M/s 14.4M/s 15.6M/s 64KiB 3.17M/s 14.5M/s 14.4M/s 14.5M/s 14.2M/s 14.9M/s 32KiB 2.93M/s 14.4M/s 14M/s 14.8M/s 14.9M/s 14.1M/s 16KiB 3.07M/s 12.9M/s 12M/s 12.3M/s 12.7M/s 12.6M/s 8KiB 2.76M/s 10.9M/s 10.6M/s 10.6M/s 10.6M/s 10.7M/s 4KiB 2.53M/s 7.68M/s 7.66M/s 7.73M/s 7.51M/s 7.72M/s 2KiB 1.98M/s 4.09M/s 4.06M/s 4.05M/s 4.07M/s 4.07M/s 1KiB 1.63M/s 2.7M/s 2.71M/s 2.71M/s 2.71M/s 2.71M/s 512B 919K/s 1.37M/s 1.36M/s 1.36M/s 1.36M/s 1.36M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --erasesize=$[512*1024] --open-au-nr=1 --findfat --fat-nr=6 --random 512KiB 3.07M/s 15.3M/s 14.5M/s 15.4M/s 14.8M/s 15M/s 256KiB 3.3M/s 11.3M/s 6.01M/s 8.24M/s 7.66M/s 7.15M/s 128KiB 3.34M/s 5.3M/s 5.65M/s 4.6M/s 5.22M/s 5.23M/s 64KiB 3.22M/s 2.55M/s 2.47M/s 2.6M/s 2.48M/s 2.56M/s 32KiB 3.16M/s 1.52M/s 1.55M/s 1.52M/s 1.51M/s 1.56M/s 16KiB 3M/s 730K/s 726K/s 738K/s 727K/s 723K/s 8KiB 2.81M/s 354K/s 355K/s 356K/s 351K/s 355K/s 4KiB 2.68M/s 194K/s 194K/s 195K/s 196K/s 196K/s 2KiB 2.02M/s 96K/s 95.6K/s 95.5K/s 94.3K/s 96.2K/s 1KiB 1.58M/s 48.2K/s 47.8K/s 48.4K/s 48.4K/s 48.2K/s 512B 783K/s 23.7K/s 23.6K/s 23.5K/s 23.9K/s 24.1K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[512*1024] --open-au-nr=1 512KiB 15.2M/s 256KiB 14.6M/s 128KiB 15.4M/s 64KiB 14.5M/s 32KiB 14.9M/s 16KiB 12.6M/s 8KiB 10.4M/s 4KiB 6.87M/s 2KiB 4.08M/s 1KiB 2.73M/s 512B 1.37M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[512*1024] --open-au-nr=2 512KiB 15M/s 256KiB 10.4M/s 128KiB 14.7M/s 64KiB 15.7M/s 32KiB 14.8M/s 16KiB 12.7M/s 8KiB 10.7M/s 4KiB 7.59M/s 2KiB 4.07M/s 1KiB 2.72M/s 512B 1.36M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[512*1024] --open-au-nr=3 512KiB 15.6M/s 256KiB 8.85M/s 128KiB 4.35M/s 64KiB 2.04M/s 32KiB 991K/s 16KiB 491K/s 8KiB 245K/s 4KiB 122K/s 2KiB 60.5K/s 1KiB 30.1K/s 512B 15.1K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[512*1024] --open-au-nr=1 --random 512KiB 15.2M/s 256KiB 10.3M/s 128KiB 8.55M/s 64KiB 3.22M/s 32KiB 1.75M/s 16KiB 785K/s 8KiB 376K/s 4KiB 202K/s 2KiB 98.6K/s 1KiB 48.8K/s 512B 24.3K/s

15 years, 5 months

Kingston CF/4GB (2008)

by Arnd Bergmann

# flashbench -a suggests 1 MB erase blocks, but later results suggest 2 MB arnd@wuerfel:~/flashbench$ sudo ./flashbench -a /dev/sdc --blocksize 1024 align 536870912 pre 543µs on 667µs post 544µs diff 124µs align 268435456 pre 546µs on 673µs post 546µs diff 127µs align 134217728 pre 540µs on 666µs post 544µs diff 123µs align 67108864 pre 535µs on 667µs post 540µs diff 130µs align 33554432 pre 545µs on 669µs post 544µs diff 124µs align 16777216 pre 537µs on 668µs post 537µs diff 131µs align 8388608 pre 541µs on 666µs post 544µs diff 124µs align 4194304 pre 544µs on 672µs post 547µs diff 127µs align 2097152 pre 557µs on 671µs post 547µs diff 120µs align 1048576 pre 547µs on 671µs post 546µs diff 124µs align 524288 pre 547µs on 666µs post 559µs diff 114µs align 262144 pre 541µs on 661µs post 539µs diff 121µs align 131072 pre 546µs on 664µs post 544µs diff 119µs align 65536 pre 546µs on 668µs post 560µs diff 115µs align 32768 pre 546µs on 669µs post 543µs diff 124µs align 16384 pre 544µs on 672µs post 549µs diff 125µs align 8192 pre 545µs on 668µs post 544µs diff 123µs align 4096 pre 544µs on 554µs post 547µs diff 8.64µs align 2048 pre 544µs on 548µs post 544µs diff 3.87µs Disk /dev/sdc: 4 GB, 4013936640 bytes 255 heads, 63 sectors/track, 488 cylinders, total 7839720 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 63 7846271 3927861 b FAT32 arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=1048576 /dev/sdc --blocksize=1024 1MiB 8.11M/s 512KiB 2.47M/s 256KiB 8.13M/s 128KiB 7.96M/s 64KiB 8.15M/s 32KiB 2.45M/s 16KiB 7.64M/s 8KiB 6.99M/s 4KiB 1.64M/s 2KiB 1.03M/s 1KiB 520K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=4194304 /dev/sdc --blocksize=1024 4MiB 9.16M/s 2MiB 9.09M/s 1MiB 9.09M/s 512KiB 9.1M/s 256KiB 9.05M/s 128KiB 8.97M/s 64KiB 8.99M/s 32KiB 8.74M/s 16KiB 8.44M/s 8KiB 7.82M/s 4KiB 3.73M/s 2KiB 1.9M/s 1KiB 959K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=1024 2MiB 5.2M/s 1MiB 5.66M/s 512KiB 9.22M/s 256KiB 9.29M/s 128KiB 9.16M/s 64KiB 9.17M/s 32KiB 8.88M/s 16KiB 8.58M/s 8KiB 7.97M/s 4KiB 3.79M/s 2KiB 1.9M/s 1KiB 964K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=1024 --open-au-nr=2 2MiB 9.44M/s 1MiB 9.38M/s 512KiB 9.27M/s 256KiB 9.25M/s 128KiB 9.17M/s 64KiB 9.22M/s 32KiB 8.96M/s 16KiB 8.56M/s 8KiB 7.94M/s 4KiB 3.8M/s 2KiB 1.9M/s 1KiB 963K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=1024 --open-au-nr=2 --random 2MiB 9.38M/s 1MiB 5.23M/s 512KiB 3.84M/s 256KiB 3.82M/s 128KiB 3.83M/s 64KiB 3.83M/s 32KiB 3.78M/s 16KiB 3.72M/s 8KiB 3.58M/s 4KiB 1.89M/s 2KiB 1.05M/s 1KiB 519K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=2 --random 1MiB 8.25M/s 512KiB 8.29M/s 256KiB 8.24M/s 128KiB 2.51M/s 64KiB 8.17M/s 32KiB 8.03M/s 16KiB 7.78M/s 8KiB 2.41M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=4 2MiB 5.47M/s 1MiB 5.75M/s 512KiB 9.37M/s 256KiB 9.33M/s 128KiB 9.26M/s 64KiB 9.17M/s 32KiB 8.98M/s 16KiB 8.69M/s 8KiB 7.98M/s # 6 * 2 MB is great in linear mode arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=6 2MiB 9.42M/s 1MiB 6.56M/s 512KiB 9.4M/s 256KiB 9.29M/s 128KiB 9.22M/s 64KiB 9.24M/s 32KiB 9.02M/s 16KiB 8.68M/s 8KiB 7.95M/s # More than 6 * 2 MB is not arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=7 2MiB 5.16M/s 1MiB 4.16M/s 512KiB 1.58M/s 256KiB 833K/s 128KiB 434K/s 64KiB 223K/s 32KiB 113K/s 16KiB 56.7K/s ^C arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=8 2MiB 9.42M/s 1MiB 4.62M/s 512KiB 1.58M/s 256KiB 831K/s ^C # 6 * 2 MB is fine in random mode arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=6 --random 2MiB 4.28M/s 1MiB 3.91M/s 512KiB 3.92M/s 256KiB 3.91M/s 128KiB 3.9M/s 64KiB 3.89M/s 32KiB 3.85M/s 16KiB 3.79M/s 8KiB 3.62M/s # 7 * 2 MB breaks in random mode arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=7 --random 2MiB 9.53M/s 1MiB 3.89M/s 512KiB 1.67M/s 256KiB 850K/s ^C # Trying 6*4MB, also bad arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304] /dev/sdc --blocksize=8192 --open-au-nr=6 --random 4MiB 7.07M/s 2MiB 9.53M/s 1MiB 3.17M/s 512KiB 2.1M/s 256KiB 1.28M/s # Trying 6 * 2 MB with offset 1 MB arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/2] /dev/sdc --blocksize=8192 --open-au-nr=6 --random --offset=$[17 * 1024 * 1024] 2MiB 2.88M/s 1MiB 3.57M/s 512KiB 1.62M/s 256KiB 1.1M/s 128KiB 686K/s ^C # No special FAT area: arnd@wuerfel:~/flashbench$ sudo ./flashbench --findfat --erasesize=$[4194304/2] /dev/sdc --blocksize=512 --random --fat-nr=6 2MiB 4.12M/s 9.48M/s 9.52M/s 9.53M/s 9.63M/s 9.53M/s 1MiB 8.2M/s 3.91M/s 3.91M/s 3.93M/s 3.92M/s 3.9M/s 512KiB 3.9M/s 3.92M/s 3.92M/s 3.92M/s 3.94M/s 3.89M/s 256KiB 3.9M/s 3.93M/s 3.89M/s 3.9M/s 3.92M/s 3.91M/s 128KiB 3.92M/s 3.88M/s 3.88M/s 3.9M/s 3.91M/s 3.9M/s 64KiB 3.88M/s 3.89M/s 3.9M/s 3.88M/s 3.84M/s 3.89M/s 32KiB 3.86M/s 3.84M/s 3.78M/s 3.8M/s 3.86M/s 3.85M/s 16KiB 3.77M/s 3.73M/s 3.74M/s 3.77M/s 3.74M/s 3.72M/s 8KiB 3.65M/s 3.59M/s 3.63M/s 3.65M/s 3.59M/s 3.6M/s 4KiB 1.65M/s 1.66M/s 1.7M/s 1.7M/s 1.7M/s 1.7M/s 2KiB 1.06M/s 1.06M/s 1.07M/s 1.07M/s 1.07M/s 1.07M/s 1KiB 527K/s 526K/s 523K/s 525K/s 521K/s 525K/s 512B 260K/s 261K/s 260K/s 260K/s 259K/s 260K/s # looking for minimum alignment, 8KB arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=1 --random --offset=$[16 * 1024 * 1024 + 8192] 1MiB 8.48M/s 512KiB 8.34M/s 256KiB 8.49M/s 128KiB 2.52M/s 64KiB 8.47M/s 32KiB 8.15M/s 16KiB 7.99M/s 8KiB 2.41M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=1 --random --offset=$[16 * 1024 * 1024 + 4096] 1MiB 7.73M/s 512KiB 7.75M/s 256KiB 7.41M/s 128KiB 2.39M/s 64KiB 7.19M/s 32KiB 6.18M/s 16KiB 2.07M/s 8KiB 3.34M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=1 --random --offset=$[16 * 1024 * 1024 + 2048] 1MiB 7.72M/s 512KiB 2.44M/s 256KiB 7.44M/s 128KiB 7.12M/s 64KiB 7.09M/s 32KiB 2.26M/s 16KiB 4.73M/s 8KiB 1.73M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=1 --random --offset=$[16 * 1024 * 1024 + 1024] 1MiB 7.85M/s 512KiB 7.52M/s 256KiB 7.27M/s 128KiB 2.4M/s 64KiB 7.17M/s 32KiB 6.24M/s 16KiB 2.06M/s 8KiB 3.34M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench --open-au --erasesize=$[4194304/4] /dev/sdc --blocksize=8192 --open-au-nr=1 --random --offset=$[16 * 1024 * 1024 + 512] 1MiB 7.72M/s 512KiB 2.45M/s 256KiB 7.49M/s 128KiB 7.2M/s 64KiB 2.41M/s 32KiB 6.2M/s 16KiB 4.71M/s 8KiB 1.73M/s 2KiB 902K/s 1KiB 424K/s 512B 260K/s

15 years, 5 months

XceedCF Industrial Grade CF 16 GB

by Arnd Bergmann

Disk /dev/sdc: 16 GB, 16384757760 bytes 255 heads, 63 sectors/track, 1992 cylinders, total 32001480 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 63 32014079 16008741 b FAT32 Warning: Partition 1 does not end on cylinder boundary. align 2147483648 pre 505µs on 605µs post 517µs diff 94.4µs align 1073741824 pre 491µs on 600µs post 498µs diff 105µs align 536870912 pre 496µs on 607µs post 489µs diff 115µs align 268435456 pre 506µs on 607µs post 514µs diff 97.3µs align 134217728 pre 527µs on 604µs post 521µs diff 80.6µs align 67108864 pre 492µs on 606µs post 496µs diff 113µs align 33554432 pre 511µs on 607µs post 516µs diff 93.2µs align 16777216 pre 479µs on 592µs post 511µs diff 97.8µs align 8388608 pre 479µs on 479µs post 478µs diff 798ns align 4194304 pre 513µs on 605µs post 494µs diff 101µs align 2097152 pre 558µs on 605µs post 559µs diff 46.6µs align 1048576 pre 474µs on 590µs post 508µs diff 99.7µs align 524288 pre 470µs on 476µs post 474µs diff 3.75µs align 262144 pre 474µs on 480µs post 478µs diff 4.35µs align 131072 pre 473µs on 475µs post 476µs diff 948ns align 65536 pre 474µs on 479µs post 477µs diff 3.13µs align 32768 pre 480µs on 480µs post 477µs diff 1.46µs align 16384 pre 477µs on 481µs post 480µs diff 1.97µs align 8192 pre 475µs on 479µs post 475µs diff 3.88µs align 4096 pre 471µs on 479µs post 477µs diff 5.65µs align 2048 pre 479µs on 483µs post 482µs diff 2.78µs # linear writing good up to 6x1MB arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[1024*1024] --open-au-nr=1 1MiB 28.2M/s 512KiB 28M/s 256KiB 27.2M/s 128KiB 24.9M/s 64KiB 26.7M/s 32KiB 22.2M/s 16KiB 16.7M/s 8KiB 10.4M/s 4KiB 7.45M/s 2KiB 4.14M/s 1KiB 1.44M/s 512B 678K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=$[512] --open-au --erasesize=$[1024*1024] --open-au-nr=2 1MiB 27.6M/s 512KiB 27.5M/s 256KiB 26.7M/s 128KiB 24.9M/s 64KiB 26M/s 32KiB 21.7M/s 16KiB 16.4M/s 8KiB 10.3M/s 4KiB 7.36M/s 2KiB 4.11M/s 1KiB 1.53M/s 512B 582K/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --open-au --erasesize=$[1024*1024] --open-au-nr=4 1MiB 21.4M/s 512KiB 27.4M/s 256KiB 26.7M/s 128KiB 24.7M/s 64KiB 26M/s 32KiB 21.8M/s 16KiB 16.4M/s 8KiB 10.1M/s 4KiB 7.28M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --open-au --erasesize=$[1024*1024] --open-au-nr=6 1MiB 16.4M/s 512KiB 27.4M/s 256KiB 26.6M/s 128KiB 24.9M/s 64KiB 26.1M/s 32KiB 21.7M/s 16KiB 16.4M/s 8KiB 10.2M/s 4KiB 7.29M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --open-au --erasesize=$[1024*1024] --open-au-nr=7 1MiB 27.5M/s 512KiB 16.6M/s 256KiB 7.18M/s 128KiB 3.96M/s 64KiB 2.08M/s 32KiB 1.06M/s 16KiB 527K/s 8KiB 262K/s 4KiB 131K/s # random writes always bad arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --open-au --erasesize=$[1024*1024] --open-au-nr=1 --random 1MiB 25.6M/s 512KiB 10.3M/s 256KiB 18.8M/s 128KiB 8.1M/s 64KiB 3.37M/s 32KiB 1.74M/s 16KiB 888K/s 8KiB 437K/s 4KiB 215K/s # at least 1 MB erase block, seen from lower throughput at 512KB arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --open-au --erasesize=$[512*1024] --open-au-nr=6 512KiB 17.1M/s 256KiB 16M/s 128KiB 15.2M/s 64KiB 12.5M/s 32KiB 14.1M/s 16KiB 11.6M/s 8KiB 8.07M/s 4KiB 6.09M/s # no special FAT area! arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024*1024] --findfat --fat-nr=6 1MiB 28.5M/s 26.1M/s 27.6M/s 26.6M/s 28.4M/s 26.1M/s 512KiB 27.4M/s 25.9M/s 26.8M/s 26.3M/s 27.8M/s 25.8M/s 256KiB 27.3M/s 25.3M/s 26.4M/s 25.6M/s 27.3M/s 25.2M/s 128KiB 25.4M/s 23.4M/s 25M/s 23.8M/s 25.3M/s 23.4M/s 64KiB 26.7M/s 24.8M/s 25.4M/s 24.7M/s 26.7M/s 24.8M/s 32KiB 22.3M/s 20.8M/s 21.6M/s 21.1M/s 22M/s 20.9M/s 16KiB 16.8M/s 16M/s 16.2M/s 16.1M/s 16.7M/s 15.9M/s 8KiB 10.3M/s 9.77M/s 10.3M/s 10.2M/s 10.4M/s 9.78M/s 4KiB 7.45M/s 6.9M/s 7.24M/s 7.27M/s 7.49M/s 6.89M/s arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=4096 --erasesize=$[1024*1024] --findfat --fat-nr=6 --random 1MiB 28.5M/s 26M/s 27.6M/s 26.5M/s 27.9M/s 26.2M/s 512KiB 21.1M/s 19.5M/s 20.5M/s 19.5M/s 21.2M/s 19.3M/s 256KiB 18.9M/s 17.3M/s 12.5M/s 17.5M/s 18.9M/s 17.2M/s 128KiB 8.05M/s 7.23M/s 7.65M/s 4.81M/s 5.37M/s 7.23M/s 64KiB 3.32M/s 3.09M/s 4.44M/s 4.37M/s 4.77M/s 3.09M/s 32KiB 1.84M/s 1.63M/s 1.49M/s 1.68M/s 1.56M/s 1.63M/s 16KiB 874K/s 743K/s 824K/s 740K/s 872K/s 789K/s 8KiB 455K/s 395K/s 414K/s 408K/s 435K/s 391K/s

15 years, 5 months

8 GB Transcend Class 6 (2008)

by Arnd Bergmann

arnd@klappe2:~/linux-2.6$ head /sys/block/mmcblk0/device/* ==> /sys/block/mmcblk0/device/cid <== 1c535653444320201000000411008300 ==> /sys/block/mmcblk0/device/csd <== 400e00325f5900003bbc7f800a400000 ==> /sys/block/mmcblk0/device/date <== 03/2008 ==> /sys/block/mmcblk0/device/erase_size <== 512 ==> /sys/block/mmcblk0/device/fwrev <== 0x0 ==> /sys/block/mmcblk0/device/hwrev <== 0x1 ==> /sys/block/mmcblk0/device/manfid <== 0x00001c ==> /sys/block/mmcblk0/device/name <== SDC ==> /sys/block/mmcblk0/device/oemid <== 0x5356 ==> /sys/block/mmcblk0/device/preferred_erase_size <== 4194304 ==> /sys/block/mmcblk0/device/scr <== 0235000000000000 ==> /sys/block/mmcblk0/device/serial <== 0x00000411 ==> /sys/block/mmcblk0/device/type <== SD ==> /sys/block/mmcblk0/device/uevent <== DRIVER=mmcblk MMC_TYPE=SD MMC_NAME=SDC MODALIAS=mmc:block Disk /dev/mmcblk0: 8017 MB, 8017936384 bytes 4 heads, 16 sectors/track, 244688 cylinders, total 15660032 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: 0x000be5d0 Device Boot Start End Blocks Id System /dev/mmcblk0p1 2048 14891007 7444480 83 Linux Partition 1 does not end on cylinder boundary. /dev/mmcblk0p2 14892316 15647309 377497 5 Extended Partition 2 does not end on cylinder boundary. /dev/mmcblk0p5 ? 1530763126 3046633935 757935405 5a Unknown arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*2048] --blocksize=512 --open-au-nr=1 2MiB 10.8M/s 1MiB 3.26M/s 512KiB 4.98M/s 256KiB 4.96M/s 128KiB 4.92M/s 64KiB 4.96M/s 32KiB 4.8M/s 16KiB 4.72M/s 8KiB 2.56M/s 4KiB 1.3M/s 2KiB 702K/s 1KiB 366K/s 512B 190K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*512] --blocksize=512 --open-au-nr=1 512KiB 8.08M/s 256KiB 8.54M/s 128KiB 8.45M/s 64KiB 2.25M/s 32KiB 8.12M/s 16KiB 7.6M/s 8KiB 1.76M/s 4KiB 1.34M/s 2KiB 705K/s 1KiB 371K/s 512B 195K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*1024] --blocksize=512 --open-au-nr=3 --random 1MiB 6.28M/s 512KiB 3.5M/s 256KiB 4.4M/s 128KiB 5.79M/s 64KiB 4.39M/s 32KiB 5.7M/s 16KiB 4.09M/s 8KiB 2.57M/s 4KiB 1.33M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*2048] --blocksize=512 --open-au-nr=3 --random 2MiB 6.16M/s 1MiB 5.8M/s 512KiB 4.64M/s 256KiB 5.05M/s 128KiB 5.03M/s 64KiB 5.04M/s 32KiB 4.91M/s 16KiB 4.76M/s 8KiB 2.56M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*4096] --blocksize=512 --open-au-nr=3 --random 4MiB 8.03M/s 2MiB 7.98M/s 1MiB 7.63M/s 512KiB 2.96M/s 256KiB 3.07M/s 128KiB 2.13M/s 64KiB 1.11M/s 32KiB 715K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*4096] --blocksize=512 --open-au-nr=2 --random 4MiB 5.83M/s 2MiB 5.85M/s 1MiB 5.53M/s 512KiB 4.67M/s 256KiB 5.01M/s 128KiB 5.04M/s 64KiB 5.04M/s 32KiB 4.92M/s 16KiB 4.77M/s 8KiB 2.44M/s 4KiB 1.31M/s 2KiB 457K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[1024*4096] --blocksize=512 --open-au-nr=4 --offset=$[1024*1024*16 + 2*1024*1024] 4MiB 6.02M/s 2MiB 7.07M/s 1MiB 7.01M/s 512KiB 7.08M/s 256KiB 6.57M/s 128KiB 7.08M/s 64KiB 7.07M/s 32KiB 6.88M/s 16KiB 6.52M/s 8KiB 3.16M/s 4KiB 1.52M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[2*1024*1024] --blocksize=512 --open-au-nr=4 --offset=$[1024*1024*16] --random 2MiB 8.67M/s 1MiB 7.16M/s 512KiB 4.12M/s 256KiB 5.09M/s 128KiB 5.05M/s 64KiB 5.07M/s 32KiB 4.97M/s 16KiB 4.82M/s 8KiB 2.58M/s 4KiB 1.33M/s 2KiB 682K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[2*1024*1024] --blocksize=512 --open-au-nr=4 --offset=$[1024*1024*16] 2MiB 4.62M/s 1MiB 5.08M/s 512KiB 5.08M/s 256KiB 5.09M/s 128KiB 5.05M/s 64KiB 5.07M/s 32KiB 4.96M/s 16KiB 4.83M/s 8KiB 2.52M/s 4KiB 1.32M/s 2KiB 686K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[2*1024*1024] --blocksize=512 --open-au-nr=5 --offset=$[1024*1024*16] 2MiB 2.42M/s 1MiB 5.74M/s 512KiB 5.75M/s 256KiB 5.73M/s 128KiB 5.71M/s 64KiB 5.71M/s 32KiB 3.36M/s 16KiB 5.35M/s 8KiB 2.8M/s 4KiB 1.17M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[2*1024*1024] --blocksize=512 --open-au-nr=6 --offset=$[1024*1024*16] 2MiB 5.27M/s 1MiB 6.26M/s 512KiB 5.2M/s 256KiB 6.23M/s 128KiB 6.25M/s 64KiB 6.26M/s 32KiB 6.13M/s 16KiB 5.37M/s 8KiB 2.92M/s 4KiB 1.35M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au /dev/mmcblk0 --erasesize=$[2*1024*1024] --blocksize=512 --open-au-nr=7 --offset=$[1024*1024*16] 2MiB 5.2M/s 1MiB 6.67M/s 512KiB 5.93M/s 256KiB 3.68M/s 128KiB 2.41M/s 64KiB 1.23M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --fat-nr=16 /dev/mmcblk0 --erasesize=$[1024*2048] 2MiB 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 11.2M/s 10.5M/s 10.2M/s 11.1M/s 4.98M/s 5.04M/s 5.07M/s 1MiB 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.2M/s 11.4M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.1M/s 11.4M/s 2.69M/s 5.01M/s 5.09M/s 512KiB 11.3M/s 11.3M/s 11.4M/s 11.5M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 5.1M/s 5.05M/s 5.01M/s 256KiB 11.3M/s 10.9M/s 10.1M/s 11.1M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 5.06M/s 4.9M/s 5.04M/s 128KiB 11.3M/s 11.3M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 11.4M/s 11.3M/s 11.4M/s 5.1M/s 5.09M/s 5.05M/s 64KiB 11.3M/s 11.4M/s 11.3M/s 11.2M/s 11.3M/s 11.3M/s 11.3M/s 11.3M/s 11.3M/s 10.6M/s 10.8M/s 10.6M/s 11.2M/s 5.1M/s 5.03M/s 5.05M/s 32KiB 10.7M/s 2.82M/s 10.8M/s 10.8M/s 10.8M/s 10.9M/s 10.9M/s 10.8M/s 10.9M/s 10.9M/s 10.7M/s 10.8M/s 10.8M/s 4.99M/s 4.96M/s 5M/s 16KiB 9.8M/s 9.96M/s 9.98M/s 9.83M/s 9.88M/s 9.94M/s 9.68M/s 9.92M/s 9.99M/s 9.99M/s 9.94M/s 9.99M/s 9.91M/s 4.73M/s 4.78M/s 4.77M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --fat-nr=16 /dev/mmcblk0 --erasesize=$[1024*2048] --random 2MiB 11.1M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 11.4M/s 11.3M/s 11.4M/s 11.3M/s 4.98M/s 5.07M/s 5.04M/s 1MiB 4.03M/s 4M/s 3.99M/s 4.22M/s 4.23M/s 4.2M/s 4.23M/s 3.08M/s 4.22M/s 4.21M/s 4.19M/s 4.19M/s 4.21M/s 3.84M/s 3.8M/s 3.83M/s 512KiB 3.33M/s 2.59M/s 3.33M/s 3.26M/s 3.25M/s 3.27M/s 3.25M/s 3.27M/s 3.26M/s 3.23M/s 3.27M/s 3.25M/s 3.27M/s 3.26M/s 3.27M/s 3.25M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --fat-nr=16 /dev/mmcblk0 --erasesize=$[1024*2048] 2MiB 5.7M/s 11.3M/s 11.4M/s 5.04M/s 5.05M/s 5.08M/s 11.3M/s 11.4M/s 11.1M/s 10.1M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 1MiB 11.3M/s 11.4M/s 11.3M/s 5.05M/s 5.01M/s 5.06M/s 11.3M/s 11.4M/s 11.2M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 512KiB 11.4M/s 11.4M/s 11.4M/s 5.06M/s 5.05M/s 5.06M/s 11.3M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 256KiB 11.1M/s 11.4M/s 11.4M/s 5.04M/s 2.69M/s 5.07M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.3M/s 128KiB 11.3M/s 11.4M/s 11.4M/s 5.05M/s 5.09M/s 5.01M/s 11.3M/s 11.3M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s 11.4M/s

15 years, 5 months

kingston SD10 class 10

by Arnd Bergmann

==> /sys/block/mmcblk0/device/block <== head: error reading `/sys/block/mmcblk0/device/block': Is a directory ==> /sys/block/mmcblk0/device/cid <== 4134325344384742300040014300ab00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003b4e7f800a400000 ==> /sys/block/mmcblk0/device/date <== 11/2010 ==> /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 <== 0x3 ==> /sys/block/mmcblk0/device/manfid <== 0x000041 ==> /sys/block/mmcblk0/device/name <== SD8GB ==> /sys/block/mmcblk0/device/oemid <== 0x3432 ==> /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 <== 0x00400143 ==> /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=SD8GB MODALIAS=mmc:block Disk /dev/mmcblk0: 7960 MB, 7960264704 bytes 245 heads, 62 sectors/track, 1023 cylinders, total 15547392 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 * 62 15539369 7769654 c W95 FAT32 (LBA) Partition 1 has different physical/logical endings: phys=(1023, 244, 62) logical=(1022, 244, 62) arnd@klappe2:~/git/flashbench$ sudo ./flashbench -a /dev/mmcblk0 --blocksize=1024 --count=64 align 805306368 pre 832Âµs on 1.2ms post 853Âµs diff 359Âµs align 536870912 pre 854Âµs on 1.23ms post 869Âµs diff 364Âµs align 402653184 pre 814Âµs on 1.08ms post 895Âµs diff 225Âµs align 268435456 pre 927Âµs on 1.25ms post 888Âµs diff 342Âµs align 201326592 pre 748Âµs on 1.1ms post 896Âµs diff 273Âµs align 134217728 pre 770Âµs on 1.07ms post 886Âµs diff 242Âµs align 100663296 pre 734Âµs on 1.07ms post 886Âµs diff 262Âµs align 67108864 pre 809Âµs on 1.06ms post 879Âµs diff 217Âµs align 50331648 pre 855Âµs on 1.07ms post 888Âµs diff 200Âµs align 33554432 pre 831Âµs on 1.08ms post 897Âµs diff 216Âµs align 25165824 pre 866Âµs on 1.09ms post 890Âµs diff 214Âµs align 16777216 pre 807Âµs on 1.1ms post 888Âµs diff 256Âµs align 12582912 pre 785Âµs on 1.06ms post 854Âµs diff 243Âµs align 8388608 pre 787Âµs on 1.1ms post 878Âµs diff 266Âµs align 6291456 pre 1.06ms on 1.19ms post 863Âµs diff 229Âµs align 4194304 pre 720Âµs on 1.06ms post 862Âµs diff 265Âµs align 3145728 pre 1.05ms on 1.17ms post 856Âµs diff 218Âµs align 2097152 pre 1.05ms on 1.17ms post 853Âµs diff 218Âµs align 1572864 pre 1.05ms on 1.17ms post 855Âµs diff 219Âµs align 1048576 pre 1.05ms on 1.17ms post 855Âµs diff 216Âµs align 786432 pre 1.05ms on 1.17ms post 856Âµs diff 217Âµs align 524288 pre 1.06ms on 1.17ms post 854Âµs diff 217Âµs ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=1 /dev/mmcblk0 4MiB 9.42M/s 2MiB 6.17M/s 1MiB 6.31M/s 512KiB 7.18M/s 256KiB 8.41M/s 128KiB 8.87M/s 64KiB 9.47M/s 32KiB 7M/s 16KiB 6.01M/s 8KiB 2.29M/s 4KiB 1.04M/s 2KiB 500K/s 1KiB 244K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=1 /dev/mmcblk0 --random 4MiB 9.35M/s 2MiB 6.45M/s 1MiB 4.74M/s 512KiB 3.38M/s 256KiB 3.12M/s 128KiB 3.48M/s 64KiB 3.43M/s 32KiB 2.66M/s 16KiB 2.93M/s 8KiB 1.24M/s 4KiB 695K/s 2KiB 326K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=2 /dev/mmcblk0 4MiB 6.69M/s 2MiB 9.32M/s 1MiB 9.5M/s 512KiB 9.49M/s 256KiB 9.51M/s 128KiB 9.5M/s 64KiB 9.49M/s 32KiB 7M/s 16KiB 6.04M/s 8KiB 1.91M/s 4KiB 1.04M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=7 /dev/mmcblk0 4MiB 9.32M/s 2MiB 9.48M/s 1MiB 9.5M/s 512KiB 9.49M/s 256KiB 9.5M/s 128KiB 9.3M/s 64KiB 9.38M/s 32KiB 6.93M/s 16KiB 6M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=8 /dev/mmcblk0 4MiB 9.33M/s 2MiB 7.18M/s 1MiB 5.83M/s 512KiB 9.48M/s 256KiB 9.48M/s 128KiB 9.49M/s 64KiB 9.49M/s 32KiB 7.03M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=9 /dev/mmcblk0 4MiB 8.92M/s 2MiB 4.85M/s 1MiB 4.6M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=9 /dev/mmcblk0 4MiB 8.92M/s 2MiB 4.85M/s 1MiB 4.6M/s 512KiB 1.8M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=4 /dev/mmcblk0 --random 4MiB 9.4M/s 2MiB 4.18M/s 1MiB 4.69M/s 512KiB 3.6M/s 256KiB 2.85M/s 128KiB 3.54M/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=8 /dev/mmcblk0 --random 4MiB 8.29M/s 2MiB 4.42M/s 1MiB 2.81M/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=5 /dev/mmcblk0 --random 4MiB 9.37M/s 2MiB 4.63M/s 1MiB 3.72M/s 512KiB 2.29M/s 256KiB 922K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[2048*1024] --blocksize=1024 --open-au-nr=5 /dev/mmcblk0 --random 2MiB 9.58M/s 1MiB 3.47M/s 512KiB 2M/s 256KiB 855K/s ^C

15 years, 5 months

Kingston SD4 class 4 (made in taiwan)

by Arnd Bergmann

==> /sys/block/mmcblk0/device/block <== head: error reading `/sys/block/mmcblk0/device/block': Is a directory ==> /sys/block/mmcblk0/device/cid <== 02544d53413038470611a1a35b00ab00 ==> /sys/block/mmcblk0/device/csd <== 400e00325b59000039af7f800a400000 ==> /sys/block/mmcblk0/device/date <== 11/2010 ==> /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 <== 0x6 ==> /sys/block/mmcblk0/device/hwrev <== 0x0 ==> /sys/block/mmcblk0/device/manfid <== 0x000002 ==> /sys/block/mmcblk0/device/name <== SA08G ==> /sys/block/mmcblk0/device/oemid <== 0x544d ==> /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 <== 0235800001000000 ==> /sys/block/mmcblk0/device/serial <== 0x11a1a35b ==> /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=SA08G MODALIAS=mmc:block Disk /dev/mmcblk0: 7742 MB, 7742685184 bytes 4 heads, 16 sectors/track, 236288 cylinders, total 15122432 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: 0x0006e463 Device Boot Start End Blocks Id System /dev/mmcblk0p1 * 4096 5380095 2688000 83 Linux /dev/mmcblk0p2 5380096 15122431 4871168 b W95 FAT32 arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=1 /dev/mmcblk0 4MiB 4.87M/s 2MiB 2.67M/s 1MiB 2.66M/s 512KiB 2.67M/s 256KiB 2.7M/s 128KiB 2.67M/s 64KiB 4.79M/s 32KiB 4.79M/s 16KiB 3.69M/s 8KiB 3.02M/s 4KiB 2.26M/s 2KiB 23.4K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=2 /dev/mmcblk0 4MiB 5.1M/s 2MiB 2.94M/s 1MiB 1.46M/s 512KiB 744K/s 256KiB 377K/s 128KiB 191K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[4096*1024] --blocksize=1024 --open-au-nr=1 /dev/mmcblk0 --random 4MiB 3.22M/s 2MiB 1.59M/s 1MiB 1.49M/s 512KiB 595K/s 256KiB 331K/s 128KiB 151K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --findfat --erasesize=$[4096*1024] --blocksize=1024 --fat-nr=5 /dev/mmcblk0 --random 4MiB 4.69M/s 4.47M/s 3.19M/s 4.83M/s 4.83M/s 2MiB 4.71M/s 4.49M/s 2.08M/s 1.87M/s 1.85M/s 1MiB 4.74M/s 4.51M/s 1.18M/s 1.14M/s 1.14M/s ^C

15 years, 5 months

Kingston SD4 class 4 made in Japan (2010)

by Arnd Bergmann

==> /sys/block/mmcblk0/device/block <== head: error reading `/sys/block/mmcblk0/device/block': Is a directory ==> /sys/block/mmcblk0/device/cid <== 02544d534430384761c00fe03300a800 ==> /sys/block/mmcblk0/device/csd <== 400e00325b5900003b5f7f800a400000 ==> /sys/block/mmcblk0/device/date <== 08/2010 ==> /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 <== 0x1 ==> /sys/block/mmcblk0/device/hwrev <== 0x6 ==> /sys/block/mmcblk0/device/manfid <== 0x000002 ==> /sys/block/mmcblk0/device/name <== SD08G ==> /sys/block/mmcblk0/device/oemid <== 0x544d ==> /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 <== 02b5800026029302 ==> /sys/block/mmcblk0/device/serial <== 0xc00fe033 ==> /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: 7969 MB, 7969177600 bytes 4 heads, 16 sectors/track, 243200 cylinders, total 15564800 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: 0x0006e463 Device Boot Start End Blocks Id System /dev/mmcblk0p1 * 4096 5380095 2688000 83 Linux /dev/mmcblk0p2 5380096 15564799 5092352 b W95 FAT32 2MiB 4.3M/s 1MiB 4.31M/s 512KiB 4.31M/s 256KiB 4.19M/s 128KiB 4.51M/s 64KiB 9.14M/s 32KiB 8.27M/s 16KiB 6.31M/s 8KiB 3.64M/s 4KiB 1.93M/s 2KiB 1M/s 1KiB 515K/s arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[2048*1024] --blocksize=1024 --open-au-nr=1 /dev/mmcblk0 --random 2MiB 8.92M/s 1MiB 3.39M/s 512KiB 1.78M/s 256KiB 1.21M/s 128KiB 703K/s 64KiB 594K/s 32KiB 285K/s 16KiB 156K/s ^C arnd@klappe2:~/git/flashbench$ sudo ./flashbench --open-au --erasesize=$[2048*1024] --blocksize=1024 --open-au-nr=2 /dev/mmcblk0 2MiB 5.93M/s 1MiB 5.02M/s 512KiB 2.2M/s 256KiB 1.06M/s 128KiB 526K/s

15 years, 5 months

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