| | 389 | |
| | 390 | ==== Arch Linux ==== |
| | 391 | * T540p 20BECT01WW |
| | 392 | |
| | 393 | * Sequential Read |
| | 394 | * root@archiso ~ # dd if=/dev/sdc of=/dev/null bs=512 |
| | 395 | {{{ |
| | 396 | 500118192+0 records in |
| | 397 | 500118192+0 records out |
| | 398 | 256060514304 bytes (256 GB) copied, 505.818 s, 506 MB/s |
| | 399 | }}} |
| | 400 | {{{ |
| | 401 | dd if=/dev/sdc of=/dev/null bs=512 24.89s user 158.57s system 36% cpu 8:25.82 total |
| | 402 | }}} |
| | 403 | * Sequential Write (512 byte) |
| | 404 | * root@archiso ~ # openssl enc -aes-256-ctr -pass pass:"$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64)" -nosalt < /dev/zero | dd if=/dev/stdin of=/dev/sdc |
| | 405 | {{{ |
| | 406 | dd: writing to ‘/dev/sdc’: No space left on device |
| | 407 | error writing output file |
| | 408 | 500118193+0 records in |
| | 409 | 500118192+0 records out |
| | 410 | 256060514304 bytes (256 GB) copied, 4055.2 s, 63.1 MB/s |
| | 411 | }}} |
| | 412 | {{{ |
| | 413 | openssl enc -aes-256-ctr -pass -nosalt < /dev/zero 128.02s user 140.02s system 6% cpu 1:07:32.77 total |
| | 414 | dd if=/dev/stdin of=/dev/sdc 42.49s user 547.11s system 14% cpu 1:07:35.20 total |
| | 415 | }}} |
| | 416 | * Sequential Write (4096 byte) |
| | 417 | * root@archiso ~ # openssl enc -aes-256-ctr -pass pass:"$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64)" -nosalt < /dev/zero | dd if=/dev/stdin of=/dev/sdc bs=4096 dd: error writing ‘/dev/sdc’: No space left on device |
| | 418 | {{{ |
| | 419 | error writing output file |
| | 420 | 62514775+0 records in |
| | 421 | 62514774+0 records out |
| | 422 | 256060514304 bytes (256 GB) copied, 1060.42 s, 241 MB/s |
| | 423 | }}} |
| | 424 | {{{ |
| | 425 | openssl enc -aes-256-ctr -pass -nosalt < /dev/zero 74.93s user 59.64s system 12% cpu 17:29.75 total |
| | 426 | dd if=/dev/stdin of=/dev/sdc bs=4096 2.40s user 121.63s system 11% cpu 17:40.42 total |
| | 427 | }}} |