Mailinglist Archive: opensuse (1501 mails)

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[opensuse] compression tool with high compression ratio, multiple files and fast random access?
  • From: Per Jessen <per@xxxxxxxxxxxx>
  • Date: Wed, 01 Sep 2010 08:34:02 +0200
  • Message-id: <i5ks4q$dnu$1@xxxxxxxxxxxxxxxx>
I'm looking for a compression tool (lzma, gzip, zip et al) with the
following characteristics:

1. high compression ratio
2. multiple files per archive
3. very fast decompression/extraction of single files

Compression time is largely immaterial.

Sofar I've come up with plain old 'zip' which satisfies 2+3, but the
compression ratio is not quite up there with e.g. lzma. For instance,
on the same files, lzma can compress a cpio archive to 298Mb, whereas
the zip-archive is 473Mb. It's a trade-off I'm willing to make (space
is cheap), but I couldn't help wondering if there might be a zip-style
compression utility with lzma compression ratios out there?

Per Jessen, Zürich (14.8°C)

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