Re: Decompression speed: zip vs lzo

[Junio C Hamano <gitster@pobox.com>]

"Marco Costalba" <mcostalba@gmail.com> writes:

> P.S: Compression size is better for zip but a more realistic test
> would be to try with a delta packaged repo instead of a simple tar of
> source files. Because delta packaged is already compressed in his way
> perhaps difference in final file sizes is smaller.

Note that the space nor time performance of compressing and
uncompressing a single huge blob is not as interesting in the
context of git as compressing/uncompressing millions of small
pieces whose total size is comparable to the specimen of "huge
single blob" experiment.  Obviously loose object files are
compressed individually, and packfile contents are also
individually and independently compressed.  Set-up cost for
individual invocation of compression and uncompression on
smaller data matters a lot more than an experiment on
compressing and uncompressiong a single huge blob (this applies
to both time and space).