netdev - Re: netconf notes and materials

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Message-Id: <1255129289.8937.39.camel@localhost.localdomain>
Date:	Fri, 09 Oct 2009 16:01:29 -0700
From:	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
To:	David Miller <davem@...emloft.net>
Cc:	"billfink@...dspring.com" <billfink@...dspring.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: netconf notes and materials

On Fri, 2009-10-09 at 14:51 -0700, David Miller wrote:
> From: Bill Fink <billfink@...dspring.com>
> Date: Fri, 9 Oct 2009 17:49:49 -0400
> 
> > How did you do the NUMA memory performance monitoring that was
> > presented on one of your slides?
> 
> Using proprietary internal tools Intel is unlikely to release.
> 
> On the bright side, some of those metrics will make their way into the
> 'perf' facilities in the kernel so they can be monitored, but not all
> of them.

Yes, they are tools written by our CPU and chipset teams to assist in
debug.  To reinforce what David just said, I know Jesse Barnes is
working hard with the Intel powers-that-be to get the "approved" public
PMU counters into the perf utility.  I'd imagine the PMU counters for
IOH memory throughput will be deemed ok, since it's not uncovering any
IP.

If I hear anything about any of the performance counters, I'll be sure
to forward that on.

Cheers,
-PJ

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