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From: Nicolas Pitre <nico@fluxnic.net>
To: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Cc: weigelt@metux.de, git@vger.kernel.org
Subject: Re: large files and low memory
Date: Tue, 05 Oct 2010 15:12:29 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LFD.2.00.1010051510160.3107@xanadu.home> (raw)
In-Reply-To: <AANLkTimHKyQhAzuh4Hsh7=bEet1T0mNRSMgiZkhWQwSN@mail.gmail.com>

On Tue, 5 Oct 2010, Nguyen Thai Ngoc Duy wrote:

> On Tue, Oct 5, 2010 at 2:41 PM, Enrico Weigelt <weigelt@metux.de> wrote:
> > * Enrico Weigelt <weigelt@metux.de> wrote:
> >
> > <snip>
> >
> > Found another possible bottleneck: git-commit seems to scan through
> > a lot of files. Shouldnt it just create a commit object from the
> > current index and update the head ?
> 
> You mean a lot of stat()? There is no way to avoid that unless you set
> assume-unchanged bits. Or you could use
> write-tree/commit-tree/update-ref directly.

Avoiding memory exhaustion is also going to help a lot as the stat() 
information will remain cached instead of requiring disk access.  Just a 
guess given $subject.


Nicolas

  reply	other threads:[~2010-10-05 19:12 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-04  9:20 large files and low memory Enrico Weigelt
2010-10-04 18:05 ` Shawn Pearce
2010-10-04 18:24   ` Joshua Jensen
2010-10-04 18:57     ` Shawn Pearce
2010-10-05  0:59       ` Enrico Weigelt
2010-10-05  7:41         ` Enrico Weigelt
2010-10-05  8:01           ` Matthieu Moy
2010-10-05  8:17             ` Enrico Weigelt
2010-10-05 11:29               ` Alex Riesen
2010-10-05 11:38                 ` Matthieu Moy
2010-10-05 11:55                   ` Nguyen Thai Ngoc Duy
2010-10-05 16:42                     ` Junio C Hamano
2010-10-05 10:13           ` Nguyen Thai Ngoc Duy
2010-10-05 19:12             ` Nicolas Pitre [this message]
2010-10-04 18:58   ` Jonathan Nieder
2010-10-04 19:11     ` Shawn Pearce
2010-10-04 19:16       ` Jonathan Nieder
2010-10-05 10:59         ` Nguyen Thai Ngoc Duy
2010-10-05 20:17         ` Nicolas Pitre
2010-10-05 20:34           ` Jonathan Nieder
2010-10-05 21:11             ` Nicolas Pitre
2010-10-05  0:57     ` Enrico Weigelt
2010-10-05  1:07       ` Ævar Arnfjörð Bjarmason
2010-10-05  1:10       ` Jonathan Nieder
2010-10-05  7:35         ` Enrico Weigelt
2010-10-05 13:47           ` Jonathan Nieder
2010-10-05  0:50   ` Enrico Weigelt
2010-10-05 19:06     ` Nicolas Pitre
2010-10-05 22:51       ` Enrico Weigelt

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