irqbalance on HT capable PE4600?

jason andrade jason at rtfmconsult.com
Fri Oct 17 21:04:00 CDT 2003


On Wed, 15 Oct 2003, Arjan van de Ven wrote:

> > Will this lead to better performance?
>
> unless you have extreme loads I doubt you can measure the difference.
> quick rule-of-thumb:
> if the "irq rate" in "vmstat 1" output is below about 1000 most of the
> time then you won't find any difference.

if the irq rate is > 20,000 can you make any comments on things to do
to provide (marginal?) performance improvements ?  context switches are
between 20-25,000 also.

regards,

-jason




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