From: Nicolas Pitre <nico@cam.org>
Date: Wed, 5 Aug 2009 20:55:07 +0000 (-0400)
Subject: don't let the delta cache grow unbounded in 'git repack'
X-Git-Tag: v1.6.4.1~4^2
X-Git-Url: https://www.git.lorimer.id.au/gitweb.git/diff_plain/5749b0b2f935dc418c98ba8e7c52c3291451bc4a?hp=5749b0b2f935dc418c98ba8e7c52c3291451bc4a

don't let the delta cache grow unbounded in 'git repack'

I have 4GB of RAM on my system which should, in theory, be quite enough
to repack a 600 MB repository.  However the unbounded delta cache size
always pushes it into swap, at which point everything virtually comes to
a halt.  So unbounded caches are never a good idea.

A default of 256MB should be a good compromize between memory usage and
speed where medium sized repositories are still likely to fit in the
cache with a reasonable memory usage, and larger repositories are going
to take quite some time to repack already anyway.

While at it, clarify the associated config variable documentation
entries a bit.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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