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25 lines
979 B
Plaintext
25 lines
979 B
Plaintext
paq is a family of archivers with the best lossless compression ratios now
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available across a wide variety of test data, according to several benchmarks.
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A comparison of paq to other compression methods, on a 2GHz T3200, when
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compressing a large text file:
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Format Size Time (sec) Memory
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comp decomp
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----------- --------- -------------- -------
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Uncompressed 3,152,896
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compress 1,319,521 1.6 0.2 .1 MB
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gzip -9 1,022,810 0.7 0.1 .1 MB
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bzip2 -9 860,097 0.6 0.4 5 MB
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p7zip (7z) 824,573 1.5 0.1 195 MB
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xz -6 822,016 ? ? ?
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zpaq c1 (fast) 806,959 2 2 38 MB
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zpaq c2 (mid) 699,191 8 8 112 MB
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zpaq c3 (max) 644,190 20 20 246 MB
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The port uses the open ZPAQ specification, and contains: a public-domain C++
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API for reading and writing ZPAQ compressed data to or from files or objects
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in memory; serial and multi-threaded archivers; extra preprocessors for
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compression; and stubs for creating self-extracting archives.
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WWW: http://mattmahoney.net/dc/zpaq.html
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