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SubjectRe: 2.6.27/2.6.28: irqbalance dies shortly after starting the daemon on x86 but not x86_64, why?

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.



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