Linux/Compression tools

From Wiki

benchmark

  • Compressing 6144MB kvm image
Command Arguments compressed size [MB] time [s]
cat > target 6144 55.96
pigz --best 1526 259.65
pigz --fast 1667 28.06


  • 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