From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, Kyle McMartin <kyle@infradead.org>
Subject: Re: 2.6.27/2.6.28: irqbalance dies shortly after starting the daemon on x86 but not x86_64, why?
Date: Fri, 2 Jan 2009 19:32:21 -0500 (EST) [thread overview]
Message-ID: <alpine.DEB.1.10.0901021931140.19502@p34.internal.lan> (raw)
In-Reply-To: <495E93D4.3060401@linux.intel.com>
On Fri, 2 Jan 2009, Arjan van de Ven wrote:
> Justin Piszcz wrote:
>> (same on both x86 and x86_64):
>> # cat /etc/default/irqbalance
>> #Configuration for the irqbalance daemon
>>
>> #Should irqbalance be enabled?
>> ENABLED=1
>> #Balance the IRQs only once?
>> ONESHOT="0"
>
>
> which version of irqbalance is this?
>
$ dpkg -l | grep -i irqbalance
ii irqbalance 0.55-2.4 Daemon to balance interrupts for SMP systems
Kyle stated:
> If there is only one cache domain, ie: one physical cpu socket with two
> cores sharing a cache, then irqbalance will return after the initial
> balance since it would be pointless to continue running. (It forces
> itself into oneshot mode.)
The CPU = E6700 so yep, so if there is one physical socket with 4 cores it
keeps? For it to keep and not oneshot you need > 2 cores?
Justin.
next prev parent reply other threads:[~2009-01-03 0:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-30 12:26 Justin Piszcz
2009-01-02 22:23 ` Arjan van de Ven
2009-01-03 0:32 ` Justin Piszcz [this message]
2009-01-03 1:08 ` Kyle McMartin
2009-01-03 1:11 ` Justin Piszcz
2009-01-02 22:35 ` Kyle McMartin
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