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From: "Lennart Sorensen" <lsorense@csclub.uwaterloo.ca>
To: "PRADHAN, MAKARAND (RC-CA)" <makarand.pradhan@siemens.com>
Cc: "Xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] Interrupt latency close to 1ms on powerpc Xenomai 2.6.4
Date: Wed, 7 Oct 2015 15:32:31 -0400	[thread overview]
Message-ID: <20151007193231.GC21923@csclub.uwaterloo.ca> (raw)
In-Reply-To: <B89CCBE86D4F62448EE4F6367C6D3C89221ECA2A@USMLVA0EM24MSX.ww017.siemens.net>

On Wed, Oct 07, 2015 at 07:27:15PM +0000, PRADHAN, MAKARAND (RC-CA) wrote:
> Thanks Philippe.
> 
> I understand the rationale and will have to do some more reading to grasp it entirely.
> 
> A quick question though. We have been using Xenomai for quite some time, and only in 2.6.4 did we notice excessive delays in our int handling. Was this behavior enabled in 2.6.4 or was it like this all the time?

Well 2.6.0 on 3.0 kernel we don't think we saw it.

Are we sure if it went "bad" when we moved to 3.12 or 3.14 kernel and
xenomai 2.6.4?

-- 
Len Sorensen


  reply	other threads:[~2015-10-07 19:32 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-29 15:35 [Xenomai] Interrupt latency close to 1ms on powerpc Xenomai 2.6.4 PRADHAN, MAKARAND (RC-CA)
2015-09-29 15:50 ` Philippe Gerum
2015-09-29 16:04   ` PRADHAN, MAKARAND (RC-CA)
2015-09-29 16:15     ` Philippe Gerum
2015-09-29 17:14       ` PRADHAN, MAKARAND (RC-CA)
2015-10-02 18:30         ` PRADHAN, MAKARAND (RC-CA)
2015-10-02 20:23           ` PRADHAN, MAKARAND (RC-CA)
2015-10-07 14:25             ` PRADHAN, MAKARAND (RC-CA)
2015-10-07 18:47               ` Philippe Gerum
2015-10-07 18:55                 ` Philippe Gerum
2015-10-07 19:27                   ` PRADHAN, MAKARAND (RC-CA)
2015-10-07 19:32                     ` Lennart Sorensen [this message]
2015-10-08  6:50                     ` Philippe Gerum
2015-10-08 14:43                       ` Lennart Sorensen
2015-10-08 14:52                         ` Gilles Chanteperdrix
2015-10-08 15:15                           ` Lennart Sorensen
2015-10-08 20:19                             ` Lennart Sorensen
2015-10-08 20:27                               ` Gilles Chanteperdrix
2015-10-08 20:30                                 ` Lennart Sorensen
2015-10-08 20:31                               ` Gilles Chanteperdrix
2015-10-08 20:41                                 ` Lennart Sorensen
2015-10-08 14:54                         ` Philippe Gerum
2015-10-08 15:05                           ` PRADHAN, MAKARAND (RC-CA)
2015-10-08 15:17                           ` Lennart Sorensen
2015-10-08 15:41                             ` Philippe Gerum
2015-10-08 15:47                               ` Gilles Chanteperdrix
2015-10-08 17:34                                 ` Philippe Gerum
2015-10-08 15:51                               ` Lennart Sorensen

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