From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Jeroen Van den Keybus <jeroen.vandenkeybus@gmail.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] SMI handling on x86
Date: Wed, 13 Mar 2013 22:40:27 +0100 [thread overview]
Message-ID: <5140F24B.7080900@xenomai.org> (raw)
In-Reply-To: <CAPRPZsBh=5TkR93kiQR8yg0ABfJZtwJ_piBQKAOznEWMppgCyw@mail.gmail.com>
On 03/13/2013 08:43 PM, Jeroen Van den Keybus wrote:
> Hi,
Hi,
>
>
> We have configured Linux 3.5.7 / Xenomai 2.6.2.1 on an MSI-7514 mainboard
> with a Core 2 Duo CPU.
>
> This configuration suffers from excessive worst-case latencies during the
> 'latency' test (on average: 2.6 µs, worst-case around 1900 µs, around 10
> overruns per second). I believe these overruns are due to the CPUs entering
> SM mode (SMI). As soon as the ACPI BIOS SMI
Do you have ACPI enabled in the kernel configuration?
--
Gilles.
next prev parent reply other threads:[~2013-03-13 21:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-13 19:43 [Xenomai] SMI handling on x86 Jeroen Van den Keybus
2013-03-13 21:40 ` Gilles Chanteperdrix [this message]
[not found] ` <CAPRPZsDDi_LfwiMdbfZro5h6cU69ONNNvG7XtSDdKE0M3bjwpw@mail.gmail.com>
2013-03-13 21:59 ` Jeroen Van den Keybus
2013-03-13 22:19 ` Jeroen Van den Keybus
2013-04-09 21:04 ` Gilles Chanteperdrix
2013-04-17 11:44 ` Jeroen Van den Keybus
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