Disk /dev/sdc: 8 GB, 8195604480 bytes 16 heads, 63 sectors/track, 15880 cylinders, total 16007040 sectors Units = sectors of 1 * 512 = 512 bytes
Device Boot Start End Blocks Id System /dev/sdc1 256 19839 10048 83 Linux Warning: Partition 1 does not end on cylinder boundary. /dev/sdc2 19840 996479 488376 83 Linux Warning: Partition 2 does not end on cylinder boundary. /dev/sdc3 996480 1973119 488376 83 Linux Warning: Partition 3 does not end on cylinder boundary. /dev/sdc4 1973120 16007039 7016688 5 Extended /dev/sdc5 1974672 15697583 6860952 83 Linux Warning: Partition 5 does not end on cylinder boundary. /dev/sdc6 15697647 16007039 154224 83 Linux Warning: Partition 6 does not end on cylinder boundary.
align 536870912 pre 481µs on 481µs post 484µs diff -1367ns align 268435456 pre 479µs on 480µs post 480µs diff 244ns align 134217728 pre 483µs on 483µs post 484µs diff -375ns align 67108864 pre 478µs on 481µs post 479µs diff 2.88µs align 33554432 pre 481µs on 483µs post 482µs diff 1.18µs align 16777216 pre 480µs on 484µs post 480µs diff 3.4µs align 8388608 pre 479µs on 478µs post 477µs diff -144ns align 4194304 pre 482µs on 482µs post 478µs diff 1.98µs align 2097152 pre 484µs on 486µs post 486µs diff 674ns align 1048576 pre 489µs on 489µs post 490µs diff -893ns align 524288 pre 487µs on 491µs post 490µs diff 2.52µs align 262144 pre 484µs on 486µs post 486µs diff 878ns align 131072 pre 477µs on 477µs post 479µs diff -489ns align 65536 pre 485µs on 490µs post 489µs diff 3.58µs align 32768 pre 487µs on 489µs post 490µs diff 544ns align 16384 pre 479µs on 486µs post 487µs diff 2.38µs align 8192 pre 477µs on 478µs post 479µs diff 75ns align 4096 pre 484µs on 484µs post 486µs diff -912ns align 2048 pre 477µs on 479µs post 479µs diff 844ns
arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc6 --open-au --erasesize=524288 --open-au-nr=4 --random --blocksize=512 512KiB 15.6M/s 256KiB 15.6M/s 128KiB 15.4M/s 64KiB 15.3M/s 32KiB 14.8M/s 16KiB 14M/s 8KiB 12.7M/s 4KiB 8.04M/s 2KiB 4.23M/s 1KiB 2.7M/s 512B 1.33M/s
arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc6 --open-au --erasesize=524288 --open-au-nr=5 --random --blocksize=512 512KiB 15.5M/s 256KiB 8.61M/s 128KiB 5.96M/s 64KiB 2.74M/s 32KiB 1.34M/s 16KiB 669K/s 8KiB 339K/s 4KiB 169K/s
arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc6 --open-au --erasesize=524288 --open-au-nr=4 --blocksize=512 512KiB 15.7M/s 256KiB 15.8M/s 128KiB 15.6M/s 64KiB 15.5M/s 32KiB 14.8M/s 16KiB 14M/s 8KiB 12.6M/s 4KiB 8.03M/s 2KiB 4.22M/s 1KiB 2.71M/s 512B 1.36M/s
arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc6 --open-au --erasesize=524288 --open-au-nr=5 --blocksize=512 512KiB 14.5M/s 256KiB 9.09M/s 128KiB 5.04M/s 64KiB 3.03M/s 32KiB 1.38M/s 16KiB 689K/s 8KiB 350K/s 4KiB 174K/s
arnd@wuerfel:~/flashbench$ sudo ./flashbench /dev/sdc --blocksize=512 --erasesize=$[512*1024] --findfat --fat-nr=6 512KiB 16.2M/s 15.8M/s 15.5M/s 15.8M/s 16.4M/s 15.8M/s 256KiB 15.6M/s 15.5M/s 15.5M/s 16.1M/s 16.1M/s 15.8M/s 128KiB 15.6M/s 15.5M/s 15.5M/s 15.3M/s 15.4M/s 15.4M/s 64KiB 16M/s 15.3M/s 15.1M/s 15.9M/s 15.3M/s 15.2M/s 32KiB 15.1M/s 14.9M/s 14.8M/s 14.9M/s 15.3M/s 14.9M/s 16KiB 14M/s 14M/s 14M/s 14M/s 14M/s 14M/s 8KiB 12.5M/s 12.7M/s 12.7M/s 12.6M/s 12.7M/s 12.7M/s 4KiB 7.93M/s 8.02M/s 8.03M/s 8.02M/s 8.02M/s 8.03M/s 2KiB 4.07M/s 4.16M/s 4.17M/s 4.11M/s 4.16M/s 4.13M/s 1KiB 2.68M/s 2.71M/s 2.71M/s 2.71M/s 2.71M/s 2.71M/s 512B 1.35M/s 1.36M/s 1.36M/s 1.36M/s 1.33M/s 1.34M/s