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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1236353193.7276.204.camel@lappy \
--to=alex.williamson@hp.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.