|Versions tested:||1.24, 1.27, 1.27b|
|Notable peformances:||Qualifying2, Source1|
Slug is a file-to-file compressor focusing on ultra fast, but still nice compression.the program website March 28, 2009
Since version 1.2+ Slug does not use LZ77 anymore, but a distant variation of reduced-offset-LZ (aka ROLZ). Besides its ROLZ-nature, Slug employs an order-0 semi-dynamic huffman coder. The huffman-tree gets rebuilt every ~4K symbols with smaller steps at the beginning of a file. Slug uses a non-sliding window of 8M which enables its ROLZ-engine to gear up.
The tool is designed in pure C++ using GCC as a compiler. All ROLZ-versions are around two times slower than their LZ77 parts. Still, Slug is a couple of times faster than good old ZIP while providing similar compression most of the time. On small files Slug does not perform as good as e.g. ZIP.
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|Ver||Rating||CPR||DPR||S.E.||R.E.||Ratio||C. kB/s||D. kB/s|