From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Theo Veenker <T.J.G.Veenker@domain.hid>
Cc: Xenomai help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] high latencies with Intel P45 ICH10
Date: Thu, 06 Aug 2009 17:20:36 +0200 [thread overview]
Message-ID: <4A7AF4C4.30001@domain.hid> (raw)
In-Reply-To: <4A72BFBA.8040209@domain.hid>
Theo Veenker wrote:
> Hi,
>
> I'm replacing a number of old machines in our lab by new ones with an
> MSI P45 Neo3 mobo. On the new hardware I'm seeing high latencies with
> Xenomai 2.4.8 on kernel 2.6.29.5. The latency thingy reports many
> overruns:
> RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
> RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
> RTD| 4.083| 9.100| 9.807| 0| 4.083| 9.807
> RTD| 4.137| 9.280| 1804.493| 18| 4.083| 1804.493
> RTD| 3.451| 9.099| 14.337| 18| 3.451| 1804.493
> RTD| 3.864| 9.281| 1820.762| 36| 3.451| 1820.762
> RTD| 4.017| 9.102| 9.917| 36| 3.451| 1820.762
> RTD| 4.121| 9.273| 1742.710| 53| 3.451| 1820.762
>
> I've tried UP/SMP both with and without disabling SMI. No CONFIG_ACPI_PROCESSOR
> etc. PCI_MSI is disabled too. I do not see the "Xenomai: SMI-enabled chipset
> found..." message in the messages log file. Is that correct or is this hardware
> too new for this version of Xenomai?
Probably, the table of supported PCI ids is in arch/x86/smi.c
--
Gilles
next prev parent reply other threads:[~2009-08-06 15:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-31 9:56 [Xenomai-help] high latencies with Intel P45 ICH10 Theo Veenker
2009-08-06 15:20 ` Gilles Chanteperdrix [this message]
2009-08-07 7:39 ` Theo Veenker
2009-08-07 10:19 ` Gilles Chanteperdrix
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