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I'm trying to compress an archive using the following GUI settings: 7z, Fastest, LZMA2, Dict 64KB, Word 32, solid block 8mb, cpu threads 8.

"C:\Program Files\7-Zip\7z.exe" a -t7z -m1=lzma2:d64k:fb32:son8m -ms=8m -mmt=8 -r -y data2.zip data*

The performance is no where near the GUI. What am I missing?

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1 Answer 1

up vote 0 down vote accepted

This worked for me:

7z a data2.7z -mx1 -m0=lzma2 data*
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