Linux/Compression tools
< Linux
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 | 1333 | 359.66 |
| 7z | a -t7z -mx9 -si | 993 | 1360.15 |
| 7z | a -m0=lzma2 -si | 1137 | 551.40 |
| lzma |
- 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