Linux/Compression tools: Difference between revisions
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| a -t7z -mx9 -si | |||
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Revision as of 11:54, 18 November 2012
benchmark
- Compressing 6144MB kvm image
| Command | Arguments | compressed size [MB] | time [s] |
|---|---|---|---|
| pigz | --best | 1526 | 259.65 |
| pigz | --fast | 1667 | 28.06 |
| cat | > target | 6144 | 60.80 |
| copy | 6144 | 59.36 | |
| 7z | a -t7z -mx1 -si | ||
| 7z | a -t7z -mx9 -si |
- 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