From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Peter Pastor <peter.pastor@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Slow hard drive access in xenomai
Date: Tue, 02 Nov 2010 23:30:16 +0100 [thread overview]
Message-ID: <4CD090F8.7040909@domain.hid> (raw)
In-Reply-To: <AANLkTikFiNw5HcDJsnbVsER9xjvPWAm5dBbZM9uiRh6x@domain.hid>
Peter Pastor wrote:
> Hey Gilles,
>
> I do understand the intention of why I should disable either of the two (usb
> controller and SATA drives), however, what I meant is, I need both
> "permanently". If I disable all the usb ports, then I only have access over
> ethernet (ssh), since the keyboard is attached to the computer through usb
> (there are no other options). Also, to the best of my knowledge, disabling
> means disabling them in the BIOS, correct? If so, I do not see how I could
> enable the usb controller again... Are there other ways to do that. If not,
> please let me know how to do it. The other option, disabling the SATA drives
> does not make sense either, since I need them to boot the kernel, do I ?
I was talking about the Intel HDA driver and the "ioc" driver. Since you
have another disk controller (ahci), you may probably boot on it for the
sake of testing.
>
> Anyway, I added the kernel parameter "irqpooll" as suggested by the error
> msg in the kernel log... and since then I haven't seen the problem occurring
> again. The documentation says that I will loose some performance and I am
> wondering how much that is. However, I am willing to debug this further and
> to remove the irqpoll option again.
But if you are satisfied with irqpoll, why bother?
--
Gilles.
next prev parent reply other threads:[~2010-11-02 22:30 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-22 21:32 [Xenomai-help] Slow hard drive access in xenomai Peter Pastor
2010-10-22 22:06 ` Gilles Chanteperdrix
2010-10-24 7:19 ` Peter Pastor
2010-10-26 5:22 ` Gilles Chanteperdrix
2010-10-28 19:20 ` Peter Pastor
2010-11-02 12:30 ` Gilles Chanteperdrix
2010-11-02 15:24 ` Peter Pastor
2010-11-02 22:30 ` Gilles Chanteperdrix [this message]
[not found] ` <AANLkTimyj5TRgan5nE5ey6h8-WO_-na=U66si-e9Xx9F@mail.gmail.com>
2010-10-24 15:08 ` Gilles Chanteperdrix
2010-10-24 19:51 ` Peter Pastor
2010-10-24 20:40 ` Peter Pastor
2010-10-25 6:19 ` Eric Noulard
2010-10-25 10:47 ` Gilles Chanteperdrix
2010-10-25 11:14 ` Jan Kiszka
2010-10-25 16:10 ` Peter Pastor
2010-10-25 16:10 ` Peter Pastor
2010-10-25 16:24 ` Eric Noulard
2010-10-25 18:04 ` Peter Pastor
2010-10-25 18:13 ` Eric Noulard
2010-10-25 18:15 ` Jan Kiszka
2010-10-25 19:03 ` Peter Pastor
2010-10-25 19:40 ` Jan Kiszka
2010-10-25 20:28 ` Jan Kiszka
2010-10-25 21:10 ` Peter Pastor
2010-10-25 21:21 ` Philippe Gerum
2010-10-25 21:26 ` Jan Kiszka
2010-10-25 21:33 ` Jan Kiszka
2010-10-25 21:43 ` Philippe Gerum
2010-10-26 0:58 ` Peter Pastor
2010-10-26 5:20 ` Jan Kiszka
2010-10-25 16:13 ` Peter Pastor
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