From: "Martin J. Bligh" <mbligh@mbligh.org>
To: "Robert M. Stockmann" <stock@stokkie.net>
Cc: linux-kernel@vger.kernel.org, Randy Dunlap <rddunlap@osdl.org>,
Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
Andre Hedrick <andre@linux-ide.org>,
Manfred Spraul <manfreds@colorfullife.com>,
Alan Cox <alan@redhat.com>, Kamal Deen <kamal@kdeen.net>
Subject: Re: irqbalance mandatory on SMP kernels?
Date: Mon, 17 Apr 2006 07:31:53 -0700 [thread overview]
Message-ID: <4443A6D9.6040706@mbligh.org> (raw)
In-Reply-To: <Pine.LNX.4.44.0604171438490.14894-100000@hubble.stokkie.net>
Robert M. Stockmann wrote:
> Hi,
>
> I noticed that the latest editions of RedHat EL 4.3 and direct
> descendants today need a program called irqbalance to activate
> true SMP IRQ load balancing for your machine's hardware.
>
> If one boots a SMP kernel (2.4.xx or 2.6.xx) kernel on a machine
> which either has 2 or more physical CPU's (also dual-core CPU's)
> , and one does not start up the irqbalance util from the
> kernel-utils package ( see e.g.
There is an in-kernel IRQ balancer. Redhat just choose to turn it
off, and do it in userspace instead. You can re-enable it if you
compile your own kernel.
M.
next prev parent reply other threads:[~2006-04-17 14:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-17 13:00 irqbalance mandatory on SMP kernels? Robert M. Stockmann
2006-04-17 13:10 ` Arjan van de Ven
2006-04-17 14:15 ` Robert M. Stockmann
2006-04-17 14:23 ` Arjan van de Ven
2006-04-17 14:31 ` Martin J. Bligh [this message]
2006-04-17 15:01 ` Lee Revell
2006-04-18 16:35 ` Theodore Ts'o
2006-04-18 17:42 ` Stephen Hemminger
2006-04-18 17:53 ` Martin Bligh
2006-04-18 18:19 ` Arjan van de Ven
2006-04-19 12:42 ` Erik Mouw
2006-04-19 14:23 ` Arjan van de Ven
2006-04-19 14:38 ` Theodore Ts'o
2006-04-19 14:45 ` Arjan van de Ven
2006-04-20 7:43 ` Nick Piggin
2006-04-19 14:30 ` Martin J. Bligh
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