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parallel: Search for pzstd for faster compression.

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Ole Tange 2016-09-22 23:52:24 +02:00
parent 196afa553b
commit bd38a6ac54
1 changed files with 25 additions and 6 deletions
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31
src/parallel
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@ -1552,10 +1552,27 @@ sub find_compression_program {
# $compress_program = compress program with options
# $decompress_program = decompress program with options
# Search for these. Sorted by speed on 20 core
# parallel -j1 --joblog jl --arg-sep , parallel --compress-program \'{3}" "-{2}\' cat ::: gz '>'/dev/null , 1 2 3 , {1..3} , zstd clzip lz4 lzop pigz pxz gzip plzip pbzip2 lzma xz lzip bzip2 lbzip2 lrzip
# sort -nk4 jl
my @prg = qw(lz4 lzop pbzip2 pigz plzip lzip gzip pxz lzma xz bzip2);
# Search for these. Sorted by speed on 32 core
# apt install zstd clzip liblz4-tool lzop pigz pxz gzip plzip pbzip2 lzma xz-utils lzip bzip2 lbzip2 lrzip
# git clone https://github.com/facebook/zstd.git
# cd zstd/contrib/pzstd; make -j; cp pzstd /usr/local/bin
# echo 'lrzip -L $((-$1))' >/usr/local/bin/lrz
# chmod +x /usr/local/bin/lrz
# seq 120000000|shuf > 1gb
# onethread="zstd clzip lz4 lzop gzip lzma xz bzip2"
# multithread="pzstd pigz pxz plzip pbzip2 lzip lbzip2 lrz"
# parallel --shuf -j50% --delay 1 --joblog jl-s --arg-sep , parallel --compress-program \'{3}" "-{2}\' cat ::: 1gb '>'/dev/null , 1 2 3 , {1..3} , $onethread
# parallel --shuf -j1 --joblog jl-m --arg-sep , parallel --compress-program \'{3}" "-{2}\' cat ::: 1gb '>'/dev/null , 1 2 3 , {1..3} , $multithread
# sort -nk4 jl-?
# 1-core:
# 2-cores:
# 4-cores:
# 8-cores: pzstd lz4 zstd pigz lzop lbzip2 pbzip2 gzip lzip lrz plzip pxz bzip2 lzma xz clzip
# 16-cores: pzstd lz4 pigz lzop lbzip2 pbzip2 plzip lzip lrz pxz gzip lzma xz bzip2
# 32-cores: pzstd lbzip2 pbzip2 zstd pigz lz4 lzop plzip lzip lrz gzip pxz lzma bzip2 xz clzip
my @prg = qw(pzstd lbzip2 pbzip2 zstd pigz lz4 lzop plzip lzip lrz
gzip pxz lzma bzip2 xz clzip);
for my $p (@prg) {
if(which($p)) {
return ("$p -c -1","$p -dc");
@ -9614,8 +9631,10 @@ sub new {
my $fhs = shift;
for my $fh (@$fhs) {
if(-t $fh and -t ($Global::status_fd || *STDERR)) {
::warning("Input is read from the terminal.",
"Only experts do this on purpose. ".
::warning("Input is read from the terminal. You either know what you",
"are doing (in which case: YOU ARE AWESOME!) or you forgot",
"::: or :::: or to pipe data into parallel. If so",
"consider going through the tutorial: man parallel_tutorial",
"Press CTRL-D to exit.");
}
}