From: Gleb Natapov <gleb@redhat.com>
To: David Cure <kvm@cure.nom.fr>
Cc: Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, Vadim Rozenfeld <vrozenfe@redhat.com>
Subject: Re: performance trouble
Date: Tue, 20 Mar 2012 11:45:41 +0200 [thread overview]
Message-ID: <20120320094541.GH22368@redhat.com> (raw)
In-Reply-To: <20120320093220.GS12293@nfs-rbx.ovh.net>
On Tue, Mar 20, 2012 at 10:32:20AM +0100, David Cure wrote:
> hello,
>
> Le Mon, Mar 19, 2012 at 12:51:34PM +0200, Gleb Natapov ecrivait :
> >
> > Can you run the same test on Linux guest and on Windows vm with 1 cpu?
> > I see a lot of IPIs between vcpus.
>
> I run the same slowly fonction (to remember the guest is
> Windows2008R2 64bits). The report is here :
> http://www.roullier.net/Report/report-3.2-vhost-net-1vcpu.txt.gz
>
> and the response time is ~13s.
>
This is without -no-hpet :) Also I hope you are not measuring time while
tracing since it supposed to be slower. Can you please try to run with
-cpu host,-hypervisor and -no-hpet and see if times are better.
--
Gleb.
next prev parent reply other threads:[~2012-03-20 10:26 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-23 8:28 performance trouble David Cure
2012-01-23 10:04 ` David Cure
2012-01-30 15:36 ` David Cure
2012-01-30 16:20 ` Brian Jackson
2012-01-30 16:51 ` David Cure
2012-01-30 17:21 ` Avi Kivity
2012-01-31 17:15 ` David Cure
2012-01-31 17:21 ` Avi Kivity
2012-02-02 10:41 ` David Cure
2012-02-03 8:59 ` David Cure
2012-02-05 9:38 ` Avi Kivity
2012-02-10 10:09 ` David Cure
2012-02-14 13:32 ` Avi Kivity
2012-02-14 13:40 ` Gleb Natapov
2012-02-16 8:55 ` David Cure
2012-02-16 9:01 ` Gleb Natapov
2012-02-17 8:59 ` David Cure
2012-02-17 10:07 ` Gleb Natapov
2012-02-17 14:01 ` David Cure
2012-02-19 9:13 ` Gleb Natapov
2012-02-22 16:33 ` David Cure
2012-02-22 16:58 ` David Cure
2012-02-23 8:38 ` Gleb Natapov
2012-03-16 10:13 ` David Cure
2012-03-19 10:51 ` Gleb Natapov
2012-03-20 9:32 ` David Cure
2012-03-20 9:45 ` Gleb Natapov [this message]
2012-03-20 11:18 ` David Cure
2012-03-20 12:38 ` Gleb Natapov
2012-03-21 11:10 ` David Cure
2012-03-21 17:31 ` Peter Lieven
2012-03-22 7:53 ` Gleb Natapov
2012-03-22 7:57 ` Peter Lieven
2012-03-22 8:35 ` David Cure
2012-03-22 8:33 ` David Cure
2012-03-22 8:50 ` Peter Lieven
2012-03-22 8:48 ` Vadim Rozenfeld
2012-03-22 8:52 ` Peter Lieven
2012-03-22 9:38 ` Vadim Rozenfeld
2012-03-26 17:00 ` Peter Lieven
2012-03-26 17:46 ` Vadim Rozenfeld
2012-03-26 17:52 ` Gleb Natapov
2012-03-26 18:36 ` Vadim Rozenfeld
2012-03-26 18:54 ` Peter Lieven
2012-03-26 20:11 ` Vadim Rozenfeld
2012-03-27 8:56 ` Gleb Natapov
2012-03-27 9:23 ` Vadim Rozenfeld
2012-03-27 9:24 ` Gleb Natapov
2012-03-27 9:26 ` Peter Lieven
2012-03-27 10:00 ` Gleb Natapov
2012-03-27 12:20 ` Peter Lieven
2012-03-27 12:26 ` Gleb Natapov
2012-03-27 12:28 ` Peter Lieven
2012-03-27 12:29 ` Gleb Natapov
2012-03-27 12:30 ` Peter Lieven
2012-03-27 14:06 ` Peter Lieven
2012-03-27 15:44 ` Vadim Rozenfeld
2012-03-27 15:58 ` Peter Lieven
2012-03-27 16:12 ` Vadim Rozenfeld
2012-03-27 16:16 ` Peter Lieven
2012-03-27 17:06 ` Vadim Rozenfeld
2012-03-28 8:38 ` Peter Lieven
2012-03-27 10:40 ` Vadim Rozenfeld
2012-03-27 10:49 ` Peter Lieven
2012-03-27 11:43 ` Vadim Rozenfeld
2012-03-27 14:44 ` Peter Lieven
2012-03-27 15:37 ` Vadim Rozenfeld
2012-03-27 15:39 ` Peter Lieven
2012-03-27 15:55 ` Vadim Rozenfeld
2012-03-22 8:31 ` David Cure
2012-03-22 8:47 ` Peter Lieven
2012-02-14 13:48 ` Vadim Rozenfeld
2012-02-17 15:27 ` David Cure
2012-02-16 9:10 ` David Cure
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