From: Roland Dreier <roland@topspin.com>
To: Adrian Bunk <bunk@stusta.de>
Cc: "Jörn Engel" <joern@wohnheim.fh-wedel.de>,
"Yum Rayan" <yum.rayan@gmail.com>,
linux-kernel@vger.kernel.org, mvw@planets.elm.net
Subject: Re: Stack usage tasks
Date: Thu, 31 Mar 2005 12:43:38 -0800 [thread overview]
Message-ID: <52ll83mtqd.fsf@topspin.com> (raw)
In-Reply-To: <20050331203010.GF3185@stusta.de> (Adrian Bunk's message of "Thu, 31 Mar 2005 22:30:10 +0200")
> The task I'm suggesting was therefore:
> - remove the -fno-unit-at-a-time in arch/i386/Makefile in your private
> kernel sources
> - use gcc 3.4
> - reduce the stack usages in call paths > 3kB
This is a good idea. However, I might suggest using gcc 4.0 (you'll
have to use a snapshot now, but the release should only be a few weeks
away). A patch went into gcc 4.0 that makes gcc more intelligent
about sharing stack for variables that cannot be alive at the same
time, and therefore it may be more feasible to make unit-at-a-time
work for the i386 kernels.
- R.
next prev parent reply other threads:[~2005-03-31 21:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-31 7:39 [PATCH] Reduce stack usage in acct.c Yum Rayan
2005-03-31 15:05 ` Jörn Engel
2005-03-31 20:09 ` Randy.Dunlap
2005-03-31 20:40 ` Adrian Bunk
2005-03-31 20:30 ` Stack usage tasks Adrian Bunk
2005-03-31 20:43 ` Roland Dreier [this message]
2005-03-31 21:19 ` Adrian Bunk
2005-04-01 10:17 ` Jörn Engel
2005-04-01 11:16 ` Jörn Engel
2005-04-03 11:35 ` [PATCH] Reduce stack usage in acct.c Olaf Dietsche
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