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From: John Stultz <john.stultz@linaro.org>
To: Andrew Richardson <chardson@umich.edu>
Cc: Dmitry Antipov <dmitry.antipov@linaro.org>,
	linaro-dev@lists.linaro.org, linux-omap@vger.kernel.org
Subject: Re: Minimum timing resolution in Ubuntu/Linaro on the PandaBoard ES
Date: Wed, 08 Feb 2012 09:08:50 -0800	[thread overview]
Message-ID: <1328720930.9030.0.camel@js-netbook> (raw)
In-Reply-To: <51DAA6EF-1C3B-4964-8447-893D295E51A1@umich.edu>

On Wed, 2012-02-08 at 04:32 -0500, Andrew Richardson wrote:
> Ah, very interesting.

>         > dmesg | grep clock
>         [    0.000000] OMAP clockevent source: GPTIMER1 at 32768 Hz
>         [    0.000000] sched_clock: 32 bits at 32kHz, resolution
>         30517ns, wraps every 131071999ms

Hrm. So 30us is still much smaller then the 2.5ms you were seeing. So
that doesn't fully explain the behavior.

thanks
-john






  parent reply	other threads:[~2012-02-08 17:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4F31A91B.8080106@umich.edu>
2012-02-08  5:21 ` Minimum timing resolution in Ubuntu/Linaro on the PandaBoard ES Dmitry Antipov
     [not found]   ` <4F32063F.1020607-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-02-08  9:32     ` Andrew Richardson
2012-02-08 13:55       ` Dmitry Antipov
2012-02-08 14:21         ` Andrew Richardson
2012-02-08 17:05       ` John Stultz
2012-02-08 17:08       ` John Stultz [this message]
2012-02-08 18:19         ` Turgis, Frederic
2012-02-08 16:58     ` John Stultz
2012-02-10  0:56   ` Ming Lei

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