From: Avi Kivity <avi@redhat.com>
To: ben@iagu.net
Cc: Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org
Subject: Re: KVM lock contention on 48 core AMD machine
Date: Mon, 21 Mar 2011 11:50:36 +0200 [thread overview]
Message-ID: <4D871F6C.40207@redhat.com> (raw)
In-Reply-To: <AANLkTin2k1ZSLa0NG6pKBvHYnKEV21t8pEqzeJWNn_rR@mail.gmail.com>
On 03/19/2011 06:45 AM, Ben Nagy wrote:
> On Fri, Mar 18, 2011 at 7:30 PM, Joerg Roedel<joro@8bytes.org> wrote:
> > Hi Ben,
> >
> > Can you try to run
> >
> > # perf record -a -g
> >
> > for a while when your VMs are up and unresponsive?
>
> Hi Joerg,
>
> Thanks for the response. Here's that output:
>
> http://paste.ubuntu.com/582345/
>
> Looks like it's spending all its time in kvm code, but there are some
> symbols that are unresolved. Is the report still useful?
>
It's actually not kvm code, but timer code. Please build qemu with
./configure --disable-strip and redo.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-03-21 9:50 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-18 12:02 KVM lock contention on 48 core AMD machine Ben Nagy
2011-03-18 12:30 ` Joerg Roedel
2011-03-19 4:45 ` Ben Nagy
2011-03-21 9:50 ` Avi Kivity [this message]
2011-03-21 11:43 ` Ben Nagy
2011-03-21 13:41 ` Ben Nagy
2011-03-21 13:53 ` Avi Kivity
[not found] ` <AANLkTikWQS281kTtJ32-qo5U+w_BAak7qUwVhUQgOxxv@mail.gmail.com>
2011-03-21 15:50 ` Avi Kivity
2011-03-21 16:16 ` Ben Nagy
2011-03-21 16:33 ` Avi Kivity
2011-03-21 16:54 ` Eric Dumazet
2011-03-21 17:02 ` Avi Kivity
2011-03-21 17:12 ` Eric Dumazet
2011-03-21 18:12 ` Ben Nagy
2011-03-21 22:27 ` [RFC] posix-timers: RCU conversion Eric Dumazet
2011-03-22 7:09 ` [PATCH] " Eric Dumazet
2011-03-22 8:59 ` Ben Nagy
2011-03-22 10:35 ` Avi Kivity
2011-03-22 10:35 ` Avi Kivity
2011-04-04 3:30 ` Ben Nagy
2011-04-04 7:18 ` Avi Kivity
2011-04-04 7:18 ` Avi Kivity
2011-04-05 7:49 ` Peter Zijlstra
2011-04-05 8:16 ` Avi Kivity
2011-04-05 8:16 ` Avi Kivity
2011-04-05 8:48 ` Peter Zijlstra
2011-04-05 8:56 ` Avi Kivity
2011-04-05 8:56 ` Avi Kivity
2011-04-05 9:03 ` Peter Zijlstra
2011-04-05 9:08 ` Avi Kivity
2011-04-05 9:08 ` Avi Kivity
2011-04-05 9:50 ` Ben Nagy
2011-04-05 8:56 ` Mike Galbraith
2011-04-03 16:54 ` Eric Dumazet
2011-04-04 18:08 ` john stultz
2011-04-04 19:47 ` Eric Dumazet
2011-04-05 14:48 ` Oleg Nesterov
2011-04-05 15:18 ` [PATCH v2] " Eric Dumazet
2011-04-05 15:43 ` Oleg Nesterov
2011-05-16 15:10 ` Avi Kivity
2011-05-16 15:30 ` Eric Dumazet
2011-04-08 18:28 ` [PATCH] " Paul E. McKenney
2011-03-21 18:14 ` KVM lock contention on 48 core AMD machine Avi Kivity
2011-03-21 18:48 ` Michael Tokarev
2011-03-21 18:53 ` Avi Kivity
2011-03-18 12:44 ` Stefan Hajnoczi
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