Linux/Compression tools: Difference between revisions
< Linux
No edit summary |
No edit summary |
||
| Line 14: | Line 14: | ||
| 1526 | | 1526 | ||
| 259.65 | | 259.65 | ||
| 533 | |||
|- | |- | ||
| pigz | | pigz | ||
| Line 19: | Line 20: | ||
| 1667 | | 1667 | ||
| 28.06 | | 28.06 | ||
| 674 | |||
|- | |- | ||
| cat | | cat | ||
| Line 35: | Line 37: | ||
| 1333 | | 1333 | ||
| 359.66 | | 359.66 | ||
| 340 | |||
|- | |- | ||
| Line 48: | Line 51: | ||
| 1137 | | 1137 | ||
| 551.40 | | 551.40 | ||
| 144 | |||
|- | |- | ||
| Line 54: | Line 58: | ||
| 1006 | | 1006 | ||
| 788 | | 788 | ||
| 13 | |||
|} | |} | ||
Revision as of 13:45, 18 November 2012
benchmark
- Compressing 6144MB kvm image
| Command | Arguments | compressed size [MB] | time [s] | additional size [MB] |
|---|---|---|---|---|
| pigz | --best | 1526 | 259.65 | 533 |
| pigz | --fast | 1667 | 28.06 | 674 |
| cat | > target | 6144 | 60.80 | |
| copy | 6144 | 59.36 | ||
| 7z | a -t7z -mx1 -si | 1333 | 359.66 | 340 |
| 7z | a -t7z -mx9 -si | 993 | 1360.15 | 0 |
| 7z | a -m0=lzma2 -si | 1137 | 551.40 | 144 |
| 7z | a -mx9 -m0=lzma2 -mmt4 -si | 1006 | 788 | 13 |
- benchmark script
#!/bin/bash COMPRESSCMD="pigz -9" DESC="pigz-best" START=$(date +%s.%N) cat image.img | $COMPRESSCMD > /backup/$DESC.img.gz END=$(date +%s.%N) DIFF=$(echo "$END - $START" | bc) echo "$DIFF" > /backup/$DESC.log