From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Wolfgang Grandegger <wg@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] linux 2.6.11
Date: Sun, 22 Apr 2012 13:24:29 +0200 [thread overview]
Message-ID: <4F93EA6D.5050208@domain.hid> (raw)
In-Reply-To: <4F93CAF4.9050105@domain.hid>
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.
next prev parent reply other threads:[~2012-04-22 11:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.0.1334997334.18156.xenomai@xenomai.org>
2012-04-21 20:12 ` [Xenomai-help] linux 2.6.11 xenophile
2012-04-21 21:03 ` Gilles Chanteperdrix
2012-04-22 6:23 ` xenophile
2012-04-22 11:22 ` Gilles Chanteperdrix
2012-04-22 9:10 ` Wolfgang Grandegger
2012-04-22 11:24 ` Gilles Chanteperdrix [this message]
2012-04-22 11:34 ` Gilles Chanteperdrix
2012-04-22 13:53 ` Wolfgang Grandegger
2012-04-22 14:02 ` Gilles Chanteperdrix
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