From: Alex Williamson <alex.williamson@hp.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm-devel <kvm@vger.kernel.org>
Subject: Re: does anyone run guests for more than 5 minutes? (virtio-net perf anomaly)
Date: Fri, 06 Mar 2009 08:26:33 -0700 [thread overview]
Message-ID: <1236353193.7276.204.camel@lappy> (raw)
In-Reply-To: <1236312791.6002.4.camel@bling>
On Thu, 2009-03-05 at 21:25 -0700, Alex Williamson wrote:
> On Thu, 2009-03-05 at 21:04 -0300, Marcelo Tosatti wrote:
> > On Tue, Mar 03, 2009 at 01:13:41PM -0700, Alex Williamson wrote:
> > > Any guesses as to what might be going on? Can anyone reproduce? I'm
> > > hoping that I'm doing something dumb, but can't figure out what it is.
> > > The system is running v2.6.29-rc6-121-g64e7130 in the guest,
> > > v2.6.29-rc6-123-gbd7b3b4 on the host, kvm module kvm-84-620-g5bffffc and
> > > userspace kvm-84-95-gea1b668. Thanks,
> >
> > Nope. Collect kvm_stat -l before/after the slowdown?
>
> Attached. This shows about 1 minute of data before the slowdown and a
> dramatic change starting around the 80th row. Thanks,
For a bit easier consumption, here's a google spreadsheet and chart of
what appear to be the interesting columns:
http://spreadsheets.google.com/pub?key=pdwpc4VwMbjWxyQfvw8AEYg
Alex
next prev parent reply other threads:[~2009-03-06 15:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-03 20:13 does anyone run guests for more than 5 minutes? (virtio-net perf anomaly) Alex Williamson
2009-03-06 0:04 ` Marcelo Tosatti
2009-03-06 4:13 ` Alex Williamson
2009-03-06 15:26 ` Alex Williamson [this message]
2009-03-06 17:17 ` Marcelo Tosatti
2009-03-06 17:25 ` Alex Williamson
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