Linux/Compression tools

From Wiki

benchmark

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


  • 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