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/ 2 Years ago, tue, april 5, 2022, 1:00:47
What compression tools are available in Ubuntu that can benefit from a multi-core CPU.
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There are two main tools. lbzip2 and pbzip2. They're essentially different implementations of bzip2 compressors. I've compared them (the output is a tidied up version but you should be able to run the commands)
cd /dev/shm # we do all of this in RAM!
dd if=/dev/urandom of=bigfile bs=1024 count=102400
$ lbzip2 -zk bigfile
Time: 0m3.596s
Size: 105335428
$ pbzip2 -zk bigfile
Time: 0m5.738s6
Size: 10532460
lbzip2 appears to be the winner on random data. It's slightly less compressed but much quicker. YMMV.
[#32609] Thursday, April 7, 2022, 2 Years
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