From: Andrew Morton <akpm@osdl.org>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] turn off irqdebug by default on Altix
Date: Wed, 04 Feb 2004 19:17:00 +0000 [thread overview]
Message-ID: <20040204111700.2cf6bc80.akpm@osdl.org> (raw)
In-Reply-To: <20040204152841.GB3387@localhost>
Martin Hicks <mort@bork.org> wrote:
>
> A while ago there was a discussion, started by Jack Steiner, about a hot
> cache line in the irqdebug code that makes booting on large machines
> very slow. The original thread can be found here:
>
> http://marc.theaimsgroup.com/?l=linux-kernel&m\x106858073229831&w=2
>
> The end result was that it was felt that irqdebug sould remain on by
> default on small machines, and that large machines should turn it off be
> default if it was causing a problem.
Yup.
> Here is a patch that turns it off for sn2. It applies cleanly against
> the linux-2.5 bk tree from this morning.
I think it would be better to kill noirqdebug altogether, and to simply
require irqdebug=N.
next prev parent reply other threads:[~2004-02-04 19:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-04 15:28 [PATCH] turn off irqdebug by default on Altix Martin Hicks
2004-02-04 19:04 ` Chen, Kenneth W
2004-02-04 19:08 ` Martin Hicks
2004-02-04 19:17 ` Andrew Morton [this message]
2004-02-04 19:40 ` Jack Steiner
2004-02-04 21:32 ` Chen, Kenneth W
2004-02-05 18:37 ` Martin Hicks
2004-02-10 22:43 ` David Mosberger
2004-02-11 21:19 ` Martin Hicks
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