Linux/Compression tools: Difference between revisions
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! compressed size [MB] | ! compressed size [MB] | ||
! time [s] | ! time [s] | ||
! additional size [MB] | |||
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Revision as of 13:43, 18 November 2012
benchmark
- Compressing 6144MB kvm image
| Command | Arguments | compressed size [MB] | time [s] | additional size [MB] |
|---|---|---|---|---|
| pigz | --best | 1526 | 259.65 | |
| pigz | --fast | 1667 | 28.06 | |
| cat | > target | 6144 | 60.80 | |
| copy | 6144 | 59.36 | ||
| 7z | a -t7z -mx1 -si | 1333 | 359.66 | |
| 7z | a -t7z -mx9 -si | 993 | 1360.15 | 0 |
| 7z | a -m0=lzma2 -si | 1137 | 551.40 | |
| 7z | a -mx9 -m0=lzma2 -mmt4 -si | 1006 | 788 |
- 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