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| From | Ian Collins <ian-news@hotmail.com> |
| Newsgroups | comp.compression |
| Subject | Re: Generating data that can be compressed with a known ratio |
| Date | Tue, 25 Jun 2013 10:18:39 +1200 |
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hitchmanr@gmail.com wrote: > On Monday, June 24, 2013 12:15:13 PM UTC-7, glen herrmannsfeldt > wrote:> >> >> Byte oriented compression algorithms, like LZW, work fine on random >> strings of a subset of the possible bytes. Repeated strings appear >> appropriately more likely as the alphabet size is reduced. > > By "byte oriented", I mean compressors that read and emit series of > bytes (Snappy, LZ4, LZNT1), rather than series of bits, since they > tend to be the only ones fast enough to be used for transparent > compression. The algorithms used by ZFS are LZJB, ZLE, and gzip. Thank's to everyone who has replied, I've probably got enough pointers to start fiddling. -- Ian Collins
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Generating data that can be compressed with a known ratio Ian Collins <ian-news@hotmail.com> - 2013-06-23 10:59 +1200
Re: Generating data that can be compressed with a known ratio glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-06-22 23:24 +0000
Re: Generating data that can be compressed with a known ratio SG <sgesemann@gmail.invalid> - 2013-06-23 01:45 +0200
Re: Generating data that can be compressed with a known ratio hitchmanr@gmail.com - 2013-06-24 11:53 -0700
Re: Generating data that can be compressed with a known ratio glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-06-24 19:15 +0000
Re: Generating data that can be compressed with a known ratio hitchmanr@gmail.com - 2013-06-24 13:44 -0700
Re: Generating data that can be compressed with a known ratio Ian Collins <ian-news@hotmail.com> - 2013-06-25 10:18 +1200
Re: Generating data that can be compressed with a known ratio hitchmanr@gmail.com - 2013-06-24 16:57 -0700
Re: Generating data that can be compressed with a known ratio Ian Collins <ian-news@hotmail.com> - 2013-06-25 13:58 +1200
Re: Generating data that can be compressed with a known ratio Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-06-27 10:08 +0300
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