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From: Duy Nguyen <pclouds@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Shawn Pearce <spearce@spearce.org>,
	David Michael Barr <b@rr-dav.id.au>,
	Git Mailing List <git@vger.kernel.org>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: [RFC] pack-objects: compression level for non-blobs
Date: Tue, 1 Jan 2013 19:10:54 +0700	[thread overview]
Message-ID: <CACsJy8DpnO6X6jdQVsr1NwrXF2MDBBcHZQTay=TyLFc5p_z9eg@mail.gmail.com> (raw)
In-Reply-To: <CACsJy8CygfaM+Ee6rURFB-cP2khO8URGDJMG2f3mqg0ebYz+8Q@mail.gmail.com>

On Tue, Jan 1, 2013 at 11:15 AM, Duy Nguyen <pclouds@gmail.com> wrote:
>> Fix pack-objects to behave the way JGit does, cluster commits first in
>> the pack stream. Now you have a dense space of commits. If I remember
>> right this has a tiny positive improvement for most rev-list
>> operations with very little downside.
>
> I was going to suggest a similar thing. The current state of C Git's
> pack writing is not bad. We mix commits and tags together, but tags

And I was wrong. At least since 1b4bb16 (pack-objects: optimize
"recency order" - 2011-06-30) commits are spread out and can be mixed
with trees too. Grouping them back defeats what Junio did in that
commit, I think.
-- 
Duy

  reply	other threads:[~2013-01-01 12:11 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-26  6:25 [RFC] pack-objects: compression level for non-blobs David Michael Barr
2012-11-26 12:35 ` David Michael Barr
2012-12-29  0:41 ` Jeff King
2012-12-29  4:34   ` Nguyen Thai Ngoc Duy
2012-12-29  5:07     ` Jeff King
2012-12-29  5:25       ` Nguyen Thai Ngoc Duy
2012-12-29  5:27         ` Jeff King
2012-12-29  9:05           ` Jeff King
2012-12-29  9:48             ` Jeff King
2012-12-30 12:05           ` Jeff King
2012-12-30 12:53             ` Nguyen Thai Ngoc Duy
2012-12-30 21:31               ` Jeff King
2012-12-31 18:06                 ` Shawn Pearce
2013-01-01  4:15                   ` Duy Nguyen
2013-01-01 12:10                     ` Duy Nguyen [this message]
2013-01-01 17:17                       ` Shawn Pearce
2013-01-01 23:47                         ` Junio C Hamano
2013-01-02  2:23                         ` Duy Nguyen
2013-01-01 20:02                       ` Junio C Hamano

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