netdev - Re: [PATCH net V4 2/2] igb: offer a PTP Hardware Clock instead of the timecompare method

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Message-ID: <CAAsGZS4mK-XNeyPiWsDX6ntfsoeqOEVNQ7ObAcp4c7jGG8O8VQ@mail.gmail.com>
Date:	Fri, 30 Mar 2012 11:17:43 -0400
From:	chetan loke <loke.chetan@...il.com>
To:	"Keller, Jacob E" <jacob.e.keller@...el.com>
Cc:	Richard Cochran <richardcochran@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	"john.stultz@...aro.org" <john.stultz@...aro.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>
Subject: Re: [PATCH net V4 2/2] igb: offer a PTP Hardware Clock instead of the
 timecompare method

On Thu, Mar 29, 2012 at 7:08 PM, Keller, Jacob E
<jacob.e.keller@...el.com> wrote:

>
> I performed this test on my machine. Even with a buggy app that calls clock_gettime
> inside a while loop, this does not produce any contention whatsoever with
> time stamping. I checked the timestamps returned also, and it appears to be running
> more than 20k times a second.
>

Great. Thanks for running the tests. I'm all set.

Intel/Richard - thanks for being patient.

Chetan
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