Re: Significant performance waste in git-svn and friends

From: Steven Grimm <koreth@midwinter.com>
Date: Sep 7, 2007, 06:28 UTC
Message-ID: <46E0EF81.6060403@midwinter.com>
In-Reply-To: <20070907045557.GY18160@spearce.org>

Shawn O. Pearce wrote:

Show 9 quoted lines

> What will happen is you will get a packfile per git-svn fetch, so
> if you fetch 5 times that day you will get 5 packfiles that day.
> But you could also get 5 packfiles from git-fetch if each of those
> fetches brought in 100 or more new objects.  So it really is not
> that big of a deal.
>
> At some point the number of packfiles gets out of control, but so
> does the number of loose objects.  Repacking is the obvious fix in
> both cases.

This dovetails nicely with the "git gc --auto" work in progress, particularly the recent patch to pack small packfiles together when there get to be too many of them; run that at the end of every git-svn fetch and the problem goes away.

-Steve