From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Cure <kvm@cure.nom.fr>
Subject: Re: performance trouble
Date: Wed, 22 Feb 2012 17:33:56 +0100
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Cc: Avi Kivity <avi@redhat.com>, kvm@vger.kernel.org,
	Vadim Rozenfeld <vrozenfe@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
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Le Sun, Feb 19, 2012 at 11:13:15AM +0200, Gleb Natapov ecrivait :
> 
> > http://www.roullier.net/report-no-hpet.txt.gz
> > 
> How have you acquired this trace? It does not trace all kvm events only
> those that have "set_irq" in them.

	I run : trace-cmd record -b 20000 -e kvm -P <process_pid>

> Nothing particularly strange here. ~1745 IRQs are injected into the
> guest each second.  RTC clock is configured to 1kH and other devices
> contribute ~721 irqs (MSI mostly) per second more. Hardly unusual.

	ok, so no ideas to decrease the response time ?

	David.