File:Benchmark common compression formats - Compressing speed.svg
Summary
| Description |
English: This is a comparison of popular compression formats by how many nanoseconds it takes to compress each format. The horizontal scale shows number or paragraphs containing random lorem ipsum text |
| Date | |
| Source | Own work |
| Author | AzaToth |
Following script was used to make the plots. They where run on a mounted tmpfs dir:
#!/bin/bash
rm -f *.compress *.decompress *.factor
for testnum in $(seq 0 500 10000); do
lorem -p $testnum > data
for archiver in bzip2 lzma xz gzip lzip lzop lrzip; do
case $archiver in
bzip2)
suffix=bz2;;
lzma)
suffix=lzma;;
xz)
suffix=xz;;
gzip)
suffix=gz;;
lzip)
suffix=lz;;
lzop)
suffix=lzo;;
lrzip)
suffix=lrz;;
esac
cp data current-$testnum
s1=$(stat -c %s current-$testnum)
c=$(date +%s%N)
$archiver current-$testnum
d=$(date +%s%N)
total=$(echo $d-$c | bc)
echo "$testnum $total" >> $archiver.compress
s2=$(stat -c %s current-$testnum.$suffix)
factor=$(echo "scale=10;$s1/$s2" | bc)
echo "$testnum $factor" >> $archiver.factor
rm -f current-$testnum
c=$(date +%s%N)
$archiver -d current-$testnum.$suffix
d=$(date +%s%N)
total=$(echo $d-$c | bc)
echo "$testnum $total" >> $archiver.decompress
rm -f current*
rm -f *.bz2 *.lzma *.gz *.xz *.lzo *.lz *.lrz
done
done
gnuplot <(echo "set terminal svg;set ylabel 'Time (nanoseconds)' textcolor lt 1; set xlabel 'Size (Number of paragraphs of random lorem ipsum text)' textcolor lt 2;plot 'lzma.compress' title 'lzma' with lines, 'xz.compress' title 'xz' with lines, 'gzip.compress' title 'gzip' with lines, 'lzip.compress' title 'lzip' with lines, 'lzop.compress' title 'lzop' with lines, 'lrzip.compress' title 'lrzip' with lines, 'bzip2.compress' title 'bzip2' with lines") > compress.svg
gnuplot <(echo "set terminal svg;set ylabel 'Time (nanoseconds)' textcolor lt 1; set xlabel 'Size (Number of paragraphs of random lorem ipsum text)' textcolor lt 2;plot 'lzma.decompress' title 'lzma' with lines, 'xz.decompress' title 'xz' with lines, 'gzip.decompress' title 'gzip' with lines, 'lzip.decompress' title 'lzip' with lines, 'lzop.decompress' title 'lzop' with lines, 'lrzip.decompress' title 'lrzip' with lines, 'bzip2.decompress' title 'bzip2' with lines") > decompress.svg
gnuplot <(echo "set terminal svg;set ylabel 'Compression factor' textcolor lt 1; set xlabel 'Size (Number of paragraphs of random lorem ipsum text)' textcolor lt 2;plot 'lzma.factor' title 'lzma' with lines, 'xz.factor' title 'xz' with lines, 'gzip.factor' title 'gzip' with lines, 'lzip.factor' title 'lzip' with lines, 'lzop.factor' title 'lzop' with lines, 'lrzip.factor' title 'lrzip' with lines, 'bzip2.factor' title 'bzip2' with lines") > factor.svg
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
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