Elementary OS团队的成员Shnatsel发布了关于自由Linux压缩工具的测试对比。下面是压缩和解压缩的数据(其中发现的一些问题,该同学已经写了脚本,可下载安装)。
压缩:
解压:
如果你想亲自尝试了这一点,下载这里的脚本代码: 压缩 | 减压
for testnum in $(seq 1 256); do testnum=$(expr $testnum ‘*’ 10) for archiver in bzip2 lzma xz gzip lzip lzop lrzip; do dd if=/dev/zero of=$testnum.zero bs=”$testnum”‘k’ count=1 c=$(date +%s%N) $archiver $testnum.zero d=$(date +%s%N) total=$(echo $d-$c | bc) echo $total >> $archiver rm $testnum.zero *.bz2 *.lzma *.gz *.xz *.lzo *.lz *.lrz donedonegnuplot <(echo “set terminal svg;set ylabel ‘Time (nanoseconds)’ textcolor lt 1; set xlabel ‘Size (tens of kilobytes)’ textcolor lt 2;plot ‘lzma’ with lines, ‘xz’ with lines, ‘gzip’ with lines, ‘lzip’ with lines, ‘lzop’ with lines, ‘lrzip’ with lines, ‘bzip2’ with lines”) > test.svgrm gzip lrzip lzip lzma lzop xz bzip2
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for testnum in $(seq 0 256); do testnum=$(expr $testnum ‘*’ 10) for archiver in bzip2 lzma xz gzip lzip lzop lrzip; do dd if=/dev/zero of=$testnum.zero bs=”$testnum”‘k’ count=1 $archiver $testnum.zero rm $testnum.zero c=$(date +%s%N) $archiver -d $testnum.zero.* d=$(date +%s%N) total=$(echo $d-$c | bc) echo $total >> $archiver rm $testnum.zero *.bz2 *.lzma *.gz *.xz *.lzo *.lz *.lrz donedonegnuplot <(echo “set terminal svg;set ylabel ‘Time (nanoseconds)’ textcolor lt 1; set xlabel ‘Size (tens of kilobytes)’ textcolor lt 2;plot ‘lzma’ with lines, ‘xz’ with lines, ‘gzip’ with lines, ‘lzip’ with lines, ‘lzop’ with lines, ‘lrzip’ with lines, ‘bzip2’ with lines”) > test.svgrm gzip lrzip lzip lzma lzop xz bzip2
此外,如果您要使用上面的脚本,确保安装了所有所需的软件包:
sudo apt-get install gnuplot bzip2 lzma xz-utils gzip lzip lzop lrzip
,每一幢房子都有一种不同的颜色,