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Date: Sun, 22 Apr 2012 13:24:29 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] linux 2.6.11
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To: Wolfgang Grandegger <wg@domain.hid>
Cc: xenomai@xenomai.org

On 04/22/2012 11:10 AM, Wolfgang Grandegger wrote:
> But all this does not explain a factor of 3 with your driver. I doubt
> that it's due to a move from 2.6.29 -> 2.6.32. Try using ftrace to find
> out what's going on (if it's already available).

Threaded interrupts were introduced around this time. And threaded
interrupts DO have a significant impact on latencies.

-- 
                                                                Gilles.