From: A Large Angry SCM <gitzilla@gmail.com>
To: Shawn Pearce <spearce@spearce.org>
Cc: Sverre Rabbelier <srabbelier@gmail.com>,
NAKAMURA Takumi <geek4civic@gmail.com>, git <git@vger.kernel.org>
Subject: Re: Git is not scalable with too many refs/*
Date: Thu, 09 Jun 2011 11:52:18 -0400 [thread overview]
Message-ID: <4DF0EC32.40001@gmail.com> (raw)
In-Reply-To: <BANLkTi=PnYmJVXe8tuqdb9UiYnethf1GSw@mail.gmail.com>
On 06/09/2011 11:23 AM, Shawn Pearce wrote:
> On Wed, Jun 8, 2011 at 23:50, Sverre Rabbelier<srabbelier@gmail.com> wrote:
>> [+shawn, who runs into something similar with Gerrit]
>
>> On Thu, Jun 9, 2011 at 05:44, NAKAMURA Takumi<geek4civic@gmail.com> wrote:
>>> Hello, Git. It is my 1st post here.
>>>
>>> I have tried tagging each commit as "refs/tags/rXXXXXX" on git-svn
>>> repo locally. (over 100k refs/tags.)
>
> As Jakub pointed out, use git notes for this. They were designed to
> scale to>100,000 annotations.
>
>>> Indeed, it made something extremely slower, even with packed-refs and
>>> pack objects.
>
> Having a reference to every commit in the repository is horrifically
> slow. We run into this with Gerrit Code Review and I need to find
> another solution. Git just wasn't meant to process repositories like
> this.
Assuming a very large number of refs, what is it that makes git so
horrifically slow? Is there a design or implementation lesson here?
next prev parent reply other threads:[~2011-06-09 15:52 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 3:44 Git is not scalable with too many refs/* NAKAMURA Takumi
2011-06-09 6:50 ` Sverre Rabbelier
2011-06-09 15:23 ` Shawn Pearce
2011-06-09 15:52 ` A Large Angry SCM [this message]
2011-06-09 15:56 ` Shawn Pearce
2011-06-09 16:26 ` Jeff King
2011-06-10 3:59 ` NAKAMURA Takumi
2011-06-13 22:27 ` Jeff King
2011-06-14 0:17 ` Andreas Ericsson
2011-06-14 0:30 ` Jeff King
2011-06-14 4:41 ` Junio C Hamano
2011-06-14 7:26 ` Sverre Rabbelier
2011-06-14 10:02 ` Johan Herland
2011-06-14 10:34 ` Sverre Rabbelier
2011-06-14 17:02 ` Jeff King
2011-06-14 19:20 ` Shawn Pearce
2011-06-14 19:47 ` Jeff King
2011-06-14 20:12 ` Shawn Pearce
2011-09-08 19:53 ` Martin Fick
2011-09-09 0:52 ` Martin Fick
2011-09-09 1:05 ` Thomas Rast
2011-09-09 1:13 ` Thomas Rast
2011-09-09 15:59 ` Jens Lehmann
2011-09-25 20:43 ` Martin Fick
2011-09-26 12:41 ` Christian Couder
2011-09-26 17:47 ` Martin Fick
2011-09-26 18:56 ` Christian Couder
2011-09-30 16:41 ` Martin Fick
2011-09-30 19:26 ` Martin Fick
2011-09-30 21:02 ` Martin Fick
2011-09-30 22:06 ` Martin Fick
2011-10-01 20:41 ` Junio C Hamano
2011-10-02 5:19 ` Michael Haggerty
2011-10-03 0:46 ` Martin Fick
2011-10-04 8:08 ` Michael Haggerty
2011-10-03 18:12 ` Martin Fick
2011-10-03 19:42 ` Junio C Hamano
2011-10-04 8:16 ` Michael Haggerty
2011-10-08 20:59 ` Martin Fick
2011-10-09 5:43 ` Michael Haggerty
2011-09-28 19:38 ` Martin Fick
2011-09-28 22:10 ` Martin Fick
2011-09-29 0:54 ` Julian Phillips
2011-09-29 1:37 ` Martin Fick
2011-09-29 2:19 ` Julian Phillips
2011-09-29 16:38 ` Martin Fick
2011-09-29 18:26 ` Julian Phillips
2011-09-29 18:27 ` René Scharfe
2011-09-29 19:10 ` Junio C Hamano
2011-09-29 4:18 ` [PATCH] refs: Use binary search to lookup refs faster Julian Phillips
2011-09-29 21:57 ` Junio C Hamano
2011-09-29 22:04 ` [PATCH v2] " Julian Phillips
2011-09-29 22:06 ` [PATCH] " Junio C Hamano
2011-09-29 22:11 ` [PATCH v3] " Julian Phillips
2011-09-29 23:48 ` Junio C Hamano
2011-09-30 15:30 ` Michael Haggerty
2011-09-30 16:38 ` Junio C Hamano
2011-09-30 17:56 ` [PATCH] refs: Remove duplicates after sorting with qsort Julian Phillips
2011-10-02 5:15 ` [PATCH v3] refs: Use binary search to lookup refs faster Michael Haggerty
2011-10-02 5:45 ` Junio C Hamano
2011-10-04 20:58 ` Junio C Hamano
2011-09-30 1:13 ` Martin Fick
2011-09-30 3:44 ` Junio C Hamano
2011-09-30 8:04 ` Julian Phillips
2011-09-30 15:45 ` Martin Fick
2011-09-29 20:44 ` Git is not scalable with too many refs/* Martin Fick
2011-09-29 19:10 ` Julian Phillips
2011-09-29 20:11 ` Martin Fick
2011-09-30 9:12 ` René Scharfe
2011-09-30 16:09 ` Martin Fick
2011-09-30 16:52 ` Junio C Hamano
2011-09-30 18:17 ` René Scharfe
2011-10-01 15:28 ` René Scharfe
2011-10-01 15:38 ` [PATCH 1/8] checkout: check for "Previous HEAD" notice in t2020 René Scharfe
2011-10-01 19:02 ` Sverre Rabbelier
2011-10-01 15:43 ` [PATCH 2/8] revision: factor out add_pending_sha1 René Scharfe
2011-10-01 15:51 ` [PATCH 3/8] checkout: use add_pending_{object,sha1} in orphan check René Scharfe
2011-10-01 15:56 ` [PATCH 4/8] revision: add leak_pending flag René Scharfe
2011-10-01 16:01 ` [PATCH 5/8] bisect: use " René Scharfe
2011-10-01 16:02 ` [PATCH 6/8] bundle: " René Scharfe
2011-10-01 16:09 ` [PATCH 7/8] checkout: " René Scharfe
2011-10-01 16:16 ` [PATCH 8/8] commit: factor out clear_commit_marks_for_object_array René Scharfe
2011-09-26 15:15 ` Git is not scalable with too many refs/* Martin Fick
2011-09-26 15:21 ` Sverre Rabbelier
2011-09-26 15:48 ` Martin Fick
2011-09-26 15:56 ` Sverre Rabbelier
2011-09-26 16:38 ` Martin Fick
2011-09-26 16:49 ` Julian Phillips
2011-09-26 18:07 ` Martin Fick
2011-09-26 18:37 ` Julian Phillips
2011-09-26 20:01 ` Martin Fick
2011-09-26 20:07 ` Junio C Hamano
2011-09-26 20:28 ` Julian Phillips
2011-09-26 21:39 ` Martin Fick
2011-09-26 21:52 ` Martin Fick
2011-09-26 23:26 ` Julian Phillips
2011-09-26 23:37 ` David Michael Barr
2011-09-27 1:01 ` [PATCH] refs.c: Fix slowness with numerous loose refs David Barr
2011-09-27 2:04 ` David Michael Barr
2011-09-26 23:38 ` Git is not scalable with too many refs/* Junio C Hamano
2011-09-27 0:00 ` [PATCH] Don't sort ref_list too early Julian Phillips
2011-10-02 4:58 ` Michael Haggerty
2011-09-27 0:12 ` Git is not scalable with too many refs/* Martin Fick
2011-09-27 0:22 ` Julian Phillips
2011-09-27 2:34 ` Martin Fick
2011-09-27 7:59 ` Julian Phillips
2011-09-27 8:20 ` Sverre Rabbelier
2011-09-27 9:01 ` Julian Phillips
2011-09-27 10:01 ` Sverre Rabbelier
2011-09-27 10:25 ` Nguyen Thai Ngoc Duy
2011-09-27 11:07 ` Michael Haggerty
2011-09-27 12:10 ` Julian Phillips
2011-09-26 22:30 ` Julian Phillips
2011-09-26 15:32 ` Michael Haggerty
2011-09-26 15:42 ` Martin Fick
2011-09-26 16:25 ` Thomas Rast
2011-09-09 13:50 ` Michael Haggerty
2011-09-09 15:51 ` Michael Haggerty
2011-09-09 16:03 ` Jens Lehmann
2011-06-10 7:41 ` Andreas Ericsson
2011-06-10 19:41 ` Shawn Pearce
2011-06-10 20:12 ` Jakub Narebski
2011-06-10 20:35 ` Jeff King
2011-06-13 7:08 ` Andreas Ericsson
2011-06-09 11:18 ` Jakub Narebski
2011-06-09 15:42 ` Stephen Bash
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