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From: "Dana How" <danahow@gmail.com>
To: "Nicolas Pitre" <nico@cam.org>
Cc: "Shawn O. Pearce" <spearce@spearce.org>,
	"Junio C Hamano" <junkio@cox.net>,
	git@vger.kernel.org, danahow@gmail.com
Subject: Re: [PATCH] always start looking up objects in the last used pack first
Date: Sat, 2 Jun 2007 08:00:52 -0700	[thread overview]
Message-ID: <56b7f5510706020800o10541844t151cb82221d077d5@mail.gmail.com> (raw)
In-Reply-To: <alpine.LFD.0.99.0705311015410.11491@xanadu.home>

On 5/31/07, Nicolas Pitre <nico@cam.org> wrote:
> Which makes me wonder about a possible incremental improvement to my
> patch: on failure to find an object in the last used pack, the search
> should then start again from the pack containing the commit from which
> this object search is related to.  In the split pack case all commit
> objects will be located in the first pack so nothing will change there.
> In the multiple-fetch case then the search will always reset to packs
> not younger than the commit triggering those object lookups.  Question
> is how to implement that nicely...

My immediate reaction to this patch  was that there should be
a last-used-pack per object type.  Or perhaps one for commits,
and one for trees+blobs [since the latter are intermingled]?
Unfortunately the interface only specifies
the SHA-1,  not the object type,  and certainly not the "commit
this is related to".  I think your related-commit idea could be
very useful,  but it does require some extra info to be passed
around which currently is not.
-- 
Dana L. How  danahow@gmail.com  +1 650 804 5991 cell

  reply	other threads:[~2007-06-02 15:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-31  2:48 [PATCH] always start looking up objects in the last used pack first Nicolas Pitre
2007-05-31  3:24 ` Nicolas Pitre
2007-05-31  5:02 ` Shawn O. Pearce
2007-05-31 15:39   ` Nicolas Pitre
2007-06-02 15:00     ` Dana How [this message]
2007-06-02 14:53 ` Dana How

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