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19eb609918
Signed-off-by: Robby Workman <rworkman@slackbuilds.org>
26 lines
1.3 KiB
Text
26 lines
1.3 KiB
Text
Long Range ZIP or Lzma RZIP
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This is a compression program optimised for large files. The larger the file
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and the more memory you have, the better the compression advantage this will
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provide, especially once the files are larger than 100MB. The advantage can
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be chosen to be either size (much smaller than bzip2) or speed (much faster
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than bzip2).
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The major disadvantages are:
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1. The main lrzip application only works on single files so it requires the
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lrztar wrapper to fake a complete archiver.
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2. It requires a lot of memory to get the best performance out of, and is not
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really usable (for compression) with less than 256MB. Decompression requires
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less ram and works on smaller ram machines.
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3. Only stdin in compression works well. The other combinations of
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stdin/stdout work but in a very inefficient manner generating temporary
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files on disk so this method of using lrzip is not recommended.
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4. Files compressed on a 64 bit OS with a compression window greater than 20
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(2 GB) may not decompress on a 32 bit OS.
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See the file README.benchmarks for performance examples and what kind of data
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lrzip is very good with.
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NOT BACKWARD COMPATIBLE WARNING
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All files created with lrzip 0.50+ are not backward compatible with versions
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prior to 0.50. v0.50 can read earlier generated files.
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