From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 28 Jan 2008 14:34:15 +0100
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] AT91SAM9260 latency
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: jagarcia@domain.hid, xenomai@xenomai.org

Gilles Chanteperdrix wrote:
> ...
> The behaviour you get may be due, for instance, to the fact that the
> processor goes into some sleep mode when idle and to a wake-up
> latency; if you run some load, there is no wake-up latency. It is hard
> to say anything. In order to investigate, I would instrument the
> kernel to trace the irq masking sections.

Don't we have the I-pipe tracer on this platform?

Jan

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