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From: Michael Tokarev <mjt@tls.msk.ru>
To: Stefan Pietsch <stefan.pietsch@lsexperts.de>
Cc: kvm@vger.kernel.org
Subject: Re: KVM: High CPU load with audio enabled
Date: Tue, 09 Nov 2010 02:48:40 +0300	[thread overview]
Message-ID: <4CD88C58.9030501@msgid.tls.msk.ru> (raw)
In-Reply-To: <20101108133310.NDW2tl7gaq4uLMdHXOT0UP@consulting.lsexperts.de>

08.11.2010 15:40, Stefan Pietsch wrote:
> Hi,
> 
> I'm running a Windows XP guest in KVM. After enabling the audio support
> (-soundhw es1370) the CPU load of the KVM process in the host system
> goes up to 100%.
> 
> Tested with: qemu-kvm-0.13.0 Debian 0.13.0+dfsg-1
> 
> KVM start command: kvm -m 512 -hda xp.img -soundhw es1370
> 
> Did you experience similar problems?

Yes, sound in 0.13 appears to be broken.  It is looping in
select/read loop forever, read returns EAGAIN and select
says the filedescriptor is ready.

/mjt

  parent reply	other threads:[~2010-11-08 23:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-08 12:40 KVM: High CPU load with audio enabled Stefan Pietsch
2010-11-08 16:31 ` lidong chen
2010-11-08 23:48 ` Michael Tokarev [this message]
2010-11-09  8:27   ` Jan Kiszka
2010-11-09 13:48     ` malc
2010-11-09 14:33       ` Michael Tokarev
2010-11-09 14:41         ` Michael Tokarev
2010-11-10  9:39           ` Stefan Pietsch
2010-11-10 10:18             ` Michael Tokarev

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