From: Mark Hurenkamp <mark.hurenkamp@xs4all.nl>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: radeon in dom0/ivtv in domU: irq 16 nobody cared
Date: Tue, 13 Apr 2010 22:05:02 +0200 [thread overview]
Message-ID: <504848C9-52F2-46C5-BD0E-1C2B35BA1A02@xs4all.nl> (raw)
In-Reply-To: <20100413125741.GA16475@phenom.dumpdata.com>
Hi,
> Anyhow, what I would like you test is to provide 'noirqdebug' flag on
> your Linux kernel command line. That should take care of the 'nobody
> cared IRQ'. Please test and see if you your machine is more or less
> sluggish.
Ok, i just rebooted my system with this setting, Will start some
recordings,
and see how it behaves.
> Also, please do run this:
> while (true)
> do
> sleep 10
> cat /proc/interrupts | grep 16
> done
>
> during the lifecycle of the whole machine. I am curious to see whether
> you also get an IRQ storm (or if it is just a trickle - which is OK)
> after launching the DomU guest.
I put a monitor in place, we'll see what happens. As far as i can see
now,
the radeon driver registers the IRQ, but doesn't seem to do much with it
during normal use (counter is still 0 after about 15 minutes running X
now).
Perhaps it is meant for opengl or some accelerated function, or my
xserver
is just not using the drivers full potential.
Which makes it all the easier to see a storm should it occur ;-)
Regards,
Mark.
next prev parent reply other threads:[~2010-04-13 20:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-07 22:45 radeon in dom0/ivtv in domU: irq 16 nobody cared Mark Hurenkamp
2010-04-08 0:19 ` Konrad Rzeszutek Wilk
2010-04-08 17:37 ` Konrad Rzeszutek Wilk
2010-04-08 18:45 ` Jeremy Fitzhardinge
2010-04-13 13:18 ` Konrad Rzeszutek Wilk
2010-04-13 18:30 ` Jeremy Fitzhardinge
2010-04-13 19:10 ` Konrad Rzeszutek Wilk
2010-04-13 19:21 ` Jeremy Fitzhardinge
2010-04-08 23:47 ` Mark Hurenkamp
2010-04-09 0:10 ` Mark Hurenkamp
2010-04-13 12:57 ` Konrad Rzeszutek Wilk
2010-04-13 20:05 ` Mark Hurenkamp [this message]
2010-04-13 20:43 ` Jeremy Fitzhardinge
2010-04-17 0:38 ` Mark Hurenkamp
2010-04-19 14:08 ` Konrad Rzeszutek Wilk
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