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Re: compressor



Le mercredi 22 août 2012 à 12:52 -0400, Gary Dale a écrit :
> I find that .lzma does a pretty good job and isn't too slow.

My 2 cents:

LZMA/LZMA2 is indeed a good choice if you want best compression: it
should work with almost anything (except already compressed streams such
as videos, images, sounds, obviously).

For text files however, you could try the PPMd algorithm which performs
equally well as LZMA but for a fraction of memory/time LZMA uses. But it
sucks for almost everything else than text.

A warning: xz -9e might increase a LOT the compression time for almost
NO size reduction compared to the defaults. Also keep in mind that the
compression algorithm uses more memory when the compression level
increases: for big datasets, you will run out of memory if you are too
greedy.





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