FreeArc Compression Settings

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I have been playing around with compression tools for quite a while, and FreeArc is one of the best of the bunch. It has the best compression / runtime ratio of any compression tool I know. Here are two parameter sets I especially like:

Fast compression

uses 4 cores to the max on a 4GB RAM machine, ~10MB per second. Compression ratio is usually above 7z max, while beeing much faster. Decompression is very fast.

-s; -ma- -m=rep:1024mb+mm+delta+dispack+4x4:lzma:50mb

Maximum compression

Requires 2 pass on a 4GB RAM machine, ~1MB per second. Usually compresses better than freearc’s default max compression. Decompression is fast too, and requires only one pass.

-s; -ma- -m=rep:2048mb+mm+delta+dispack+lzma:ultra:170mb

Extreme Compression

Can take like forever, and needs executable for precomp042 and srep, and requires two temporary files that are about as large (or larger) than the whole uncompressed data set.

-s; -ma- -m=precomp042:c-:intense+srep:m3f:mem256mb+mm+dispack070+delta+lzma:max:512mb
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