Subject: Re: Receive side performance issue with multi-10-GigE and NUMA

From: Andrew Gallatin <[email-masked]>
Date: Fri, 07 Aug 2009 21:03:56 -0400

Bill Fink wrote:

> All sysfs local_cpus values are the same (00000000,000000ff),
> so yes they are also wrong.

How were you handling IRQ binding?  If local_cpus is wrong,
the irqbalance will not be able to make good decisions about
where to bind the NICs' IRQs.  Did you try manually binding
each NICs's interrupt to a separate CPU on the correct node?

Regards,

Drew