git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Jakub Narebski <jnareb@gmail.com>
To: Theodore Tso <tytso@MIT.EDU>
Cc: Jeff King <peff@peff.net>, Will Palmer <wmpalmer@gmail.com>,
	Avery Pennarun <apenwarr@gmail.com>,
	git@vger.kernel.org
Subject: Re: Why is "git tag --contains" so slow?
Date: Thu, 08 Jul 2010 04:12:36 -0700 (PDT)	[thread overview]
Message-ID: <m37hl6mdnb.fsf@localhost.localdomain> (raw)
In-Reply-To: <11D5771D-EB47-42E9-BCC3-69C8FE1999EC@MIT.EDU>

Theodore Tso <tytso@MIT.EDU> writes:
> On Jul 7, 2010, at 1:45 PM, Jeff King wrote:
> 
> >     And of course it's just complex, and I tend to shy away from
> >     complexity when I can. The question to me comes back to (1) above.
> >     Is massive clock skew a breakage that should produce a few
> >     incorrect results, or is it something we should always handle?
> 
> Going back to the question that kicked off this thread, I wonder if there
> is some way that cacheing could be used to speed up the all cases,
> or at lest the edge cases, without imposing as much latency as tracking
> the max skew?   i.e., some thing like gitk's gitk.cache file.  For bonus
> points, it could be a cache file that is used by both gitk and git tag
> --contains, git branch --contains, and git name-rev.
> 
> Does that sound like reasonable idea?

By the way, what had happened to the rev-cache project from GSoC 2009?

-- 
Jakub Narebski
Poland
ShadeHawk on #git

  reply	other threads:[~2010-07-08 11:12 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
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 [this message]
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: http://vger.kernel.org/majordomo-info.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=m37hl6mdnb.fsf@localhost.localdomain \
    --to=jnareb@gmail.com \
    --cc=apenwarr@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=peff@peff.net \
    --cc=tytso@MIT.EDU \
    --cc=wmpalmer@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).