lkml.org 
[lkml]   [2006]   [Feb]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: irq balance problems?

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.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-02-21 09:48    [W:0.038 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site