From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Jeff King <peff@peff.net>
Cc: tytso@mit.edu, Avery Pennarun <apenwarr@gmail.com>,
git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>
Subject: Re: [RFC/PATCH 1/4] tag: speed up --contains calculation
Date: Wed, 23 Feb 2011 16:51:02 +0100 [thread overview]
Message-ID: <AANLkTinL-gN3sCkUzzsBbzwxo1AYx1NURjKaE8D4TgvU@mail.gmail.com> (raw)
In-Reply-To: <20100705123335.GA25699@sigill.intra.peff.net>
On Mon, Jul 5, 2010 at 14:33, Jeff King <peff@peff.net> wrote:
> When we want to know if commit A contains commit B (or any
> one of a set of commits, B through Z), we generally
> calculate the merge bases and see if B is a merge base of A
> (or for a set, if any of the commits B through Z have that
> property).
On a work repo with around 10k tags after and before this patch:
$ time ~/g/git/git tag --contains HEAD~200 | wc -l
113
real 0m0.421s
user 0m0.380s
sys 0m0.042s
$ time git tag --contains HEAD~200 | wc -l
113
real 2m18.861s
user 2m18.750s
sys 0m0.092s
I'd love to have this merged downwards from pu. It's the single
biggest usability improvement in my Git workflow for as long as I can
remember.
next prev parent reply other threads:[~2011-02-23 15:51 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-01 0:54 Why is "git tag --contains" so slow? Theodore Ts'o
2010-07-01 0:58 ` Shawn O. Pearce
2010-07-03 23:27 ` Sam Vilain
2010-07-01 1:00 ` Avery Pennarun
2010-07-01 12:17 ` tytso
2010-07-01 15:03 ` Jeff King
2010-07-01 15:38 ` Jeff King
2010-07-02 19:26 ` tytso
2010-07-03 8:06 ` Jeff King
2010-07-04 0:55 ` tytso
2010-07-05 12:27 ` Jeff King
2010-07-05 12:33 ` [RFC/PATCH 1/4] tag: speed up --contains calculation Jeff King
2010-10-13 22:07 ` Jonathan Nieder
2010-10-13 22:56 ` Clemens Buchacher
2011-02-23 15:51 ` Ævar Arnfjörð Bjarmason [this message]
2011-02-23 16:39 ` Jeff King
2010-07-05 12:34 ` [RFC/PATCH 2/4] limit "contains" traversals based on commit timestamp Jeff King
2010-10-13 23:21 ` Jonathan Nieder
2010-07-05 12:35 ` [RFC/PATCH 3/4] default core.clockskew variable to one day Jeff King
2010-07-05 12:36 ` [RFC/PATCH 4/4] name-rev: respect core.clockskew Jeff King
2010-07-05 12:39 ` Why is "git tag --contains" so slow? Jeff King
2010-10-14 18:59 ` Jonathan Nieder
2010-10-16 14:32 ` Clemens Buchacher
2010-10-27 17:11 ` Jeff King
2010-10-28 8:07 ` Clemens Buchacher
2010-07-05 14:10 ` tytso
2010-07-06 11:58 ` Jeff King
2010-07-06 15:31 ` Will Palmer
2010-07-06 16:53 ` tytso
2010-07-08 11:28 ` Jeff King
2010-07-08 13:21 ` Will Palmer
2010-07-08 13:54 ` tytso
2010-07-07 17:45 ` Jeff King
2010-07-08 10:29 ` Theodore Tso
2010-07-08 11:12 ` Jakub Narebski
2010-07-08 19:29 ` Nicolas Pitre
2010-07-08 19:39 ` Avery Pennarun
2010-07-08 20:13 ` Nicolas Pitre
2010-07-08 21:20 ` Jakub Narebski
2010-07-08 21:30 ` Sverre Rabbelier
2010-07-08 23:10 ` Nicolas Pitre
2010-07-08 23:15 ` Nicolas Pitre
2010-07-08 11:31 ` Jeff King
2010-07-08 14:35 ` Johan Herland
2010-07-08 19:06 ` Nicolas Pitre
2010-07-07 17:50 ` Jeff King
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