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Message-Id: <20070108170934.dafc5b81.pj@sgi.com>
Date: Mon, 8 Jan 2007 17:09:34 -0800
From: Paul Jackson <pj@....com>
To: Jeff Garzik <jeff@...zik.org>
Cc: tytso@....edu, suparna@...ibm.com, akpm@...l.org, w@....eu,
torvalds@...l.org, hpa@...or.com, git@...r.kernel.org,
nigel@...el.suspend2.net, warthog9@...nel.org,
randy.dunlap@...cle.com, pavel@....cz,
linux-kernel@...r.kernel.org, webmaster@...nel.org,
linux-ext4@...r.kernel.org
Subject: Re: How git affects kernel.org performance
Jeff wrote:
> Something I just thought of: ATA and SCSI hard disks do their own
> read-ahead.
Probably this is wishful thinking on my part, but I would have hoped
that most of the read-ahead they did was for stuff that happened to be
on the cylinder they were reading anyway. So long as their read-ahead
doesn't cause much extra or delayed disk head motion, what does it
matter?
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@....com> 1.925.600.0401
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