https://bugs.freedesktop.org/show_bug.cgi?id=70190
Priority: medium
Bug ID: 70190
Assignee: [email protected]
Summary: replace zip format by an archive format with better
compression ratio (7z, tar.xz, ...)
Severity: normal
Classification: Unclassified
OS: All
Reporter: [email protected]
Hardware: Other
Status: UNCONFIRMED
Version: 4.2.0.0.alpha0+ Master
Component: filters and storage
Product: LibreOffice
The lzma2 compression method (used by 7z or tar.xz archives formats) provides a
better compression ratio than deflate (used by zip).
With the right parameter, lzma2 method can use the same memory for
decompression than deflate.
The drawback is a slow compression. However, this could be avoided with multi
core/cpu computers which are used nowadays. With recent computers, 1 process
can write the uncompressed stream into a pipe. Then an other process read
simultaneously the stream from this pipe and compress it with actual
parallelism (1 process per cpu).
I think that LibreOffice documents should use 7z format instead of zip.
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