From: Jeff King <peff@peff.net>
Date: Tue, 11 May 2010 05:01:34 GMT
Subject: Re: git gc taking forever to reflog expire --all
Message-ID: <20100511050134.GA9413@coredump.intra.peff.net>
In-Reply-To: <0C5B1A89-551A-4EC8-862A-C306A286FAF4@adacore.com>

On Mon, May 10, 2010 at 01:58:11PM -0400, Geert Bosch wrote:

> On my recent MacBook Pro, I gave up after reflog expire --all
> had chewed up 30 minutes of perfectly fine CPU time.

There are some corner cases that can cause the expire-unreachable
algorithm to behave badly. The fix is b4ca1db (reflog
--expire-unreachable: avoid merge-base computation, 2010-04-07), but
hasn't been included in a release yet.

In the meantime, you can work around it with:

  git config gc.reflogExpireUnreachable never

-Peff