Re: irq balance problems?

[Imre Gergely]

Arjan van de Ven wrote:
> On Tue, 2006-02-21 at 10:03 +0200, Imre Gergely wrote:
>> Arjan van de Ven wrote:
>>>> and irqbalance is not running, why aren't the interrupts coming from eth0
>>>> balanced between the two processors? at least that's what i understood from the
>>>> examples in Documentation/IRQ-affinity.txt. are there any other settings/kernel
>>>> parameters/compile option one has to set?
>>> it'll depend on the chipset. Some round-robin, some don't.
>>> For performance it's better to not round-robin. 
>> is there a way to see for sure? or this behaviour is proof enough that it
>> doesn't do round-robin?
> 
> it's pretty much proof to me already yes ;)
> 
> (but why do you want round-robin? it's the worst setting for
> performance..... )

on one of the ethernet cards is much traffic, and there is htb (with many
classes and filters) used. because of this, one CPU is always on 95-100%, the
other is barely used. i wanted to see if it would improve performance if it did
balancing between the CPUs.

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