From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Theo Veenker <Theo.Veenker@domain.hid>
Cc: Xenomai <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] xenomai on (old) laptop
Date: Thu, 15 Mar 2007 10:48:31 +0100 [thread overview]
Message-ID: <45F9166F.3020901@domain.hid> (raw)
In-Reply-To: <45F91516.503@domain.hid>
Theo Veenker wrote:
> Hi all,
>
> I'm preparing a Toshiba Satellite S1400-153E laptop for field work.
> It used to run redhat 9 + RTLinux, but now it runs Ubuntu 6.06 +
> Xenomai 2.3.
>
> Unfortunately the latency test shows high latencies (200..500us) at
> irregular intervals (5..20 sec) whereas the typical max latency is
> around 10 us. It doesn't seem to be related to any user action.
>
> I don't think this thing has SMI, anyway xenomai doesn't detect it.
> It also doesn't have a local APIC. What could be the cause of these
> high latencies?
APM ?
--
Gilles Chanteperdrix
next prev parent reply other threads:[~2007-03-15 9:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-15 9:42 [Xenomai-help] xenomai on (old) laptop Theo Veenker
2007-03-15 9:48 ` Gilles Chanteperdrix [this message]
2007-03-15 9:59 ` Philippe Gerum
2007-03-15 10:28 ` Theo Veenker
2007-03-16 10:33 ` Theo Veenker
2007-03-16 10:42 ` Gilles Chanteperdrix
2007-03-15 9:56 ` Markus Franke
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