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tsohr/gist:7942113

Last active September 6, 2017 06:35
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7zip command line execution example, 7zip format, LZMA2, multithreading
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gistfile1.txt
# not working
#7za a -r -t7z -m=Deflate64 -mt=12 $FILE_OUT $A_DIR
7za a -r -t7z -m0=LZMA2 -mmt=on $FILE_OUT $A_DIR
#http://7zip.bugaco.com/7zip/MANUAL/switches/method.htm#ZipMultiThread
#mt=[off | on | {N}]
#Sets multithread mode. If you have a multiprocessor or multicore system, you can get a speed increase with this switch. This option #affects only compression with BZip2, Deflate and Deflate64 methods and decompression of BZip2 streams.
#Each thread in the multithread mode uses 32 MB of RAM for buffering. If you specify {N}, 7-Zip tries to use N threads.
@Drowze
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Drowze commented Nov 3, 2015

Helpful. Thanks!

@clarkk
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clarkk commented Dec 28, 2015

LZMA2 only supports up to 2 threads..

So it would only make sense to use these two switches -mmt=on or -mmt=off

@tsohr
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tsohr commented May 10, 2017

@clakk, thanks for commenting out

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