From: "Pasi Kärkkäinen" <pasik@iki.fi>
To: Nathan Stratton <nathan@robotics.net>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Subject: Re: HVM dropped packets
Date: Wed, 26 Aug 2009 08:52:07 +0300 [thread overview]
Message-ID: <20090826055207.GF19938@edu.joroinen.fi> (raw)
In-Reply-To: <alpine.LFD.2.00.0908251551080.19236@bart.robotics.net>
On Tue, Aug 25, 2009 at 03:52:23PM -0500, Nathan Stratton wrote:
> On Tue, 25 Aug 2009, Pasi Kärkkäinen wrote:
>
> >Well I guess then your only option is to use stubdoms.
>
> Any way to figure out what causes the overruns on tap and drops on vif? If
> I am using tap for HVM why is there even a vif?
>
How's your CPU usage?
I bet the drops are caused by the low performance of Qemu nic _emulation_.
-- Pasi
> >Beware there's a bug (qemu memleak) in xen 3.4.1 related to stubdoms and
> >heavy io
> >on hvm guests in general:
> >http://lists.xensource.com/archives/html/xen-devel/2009-08/msg00335.html
>
> Thanks.
>
> -Nathan
next prev parent reply other threads:[~2009-08-26 5:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-25 18:30 HVM dropped packets Nathan Stratton
2009-08-25 19:10 ` Pasi Kärkkäinen
2009-08-25 19:49 ` Nathan Stratton
2009-08-25 20:16 ` Pasi Kärkkäinen
2009-08-25 20:52 ` Nathan Stratton
2009-08-26 5:52 ` Pasi Kärkkäinen [this message]
2009-08-26 7:45 ` Nathan Stratton
2009-08-26 7:53 ` Keir Fraser
2009-08-26 9:29 ` Stefano Stabellini
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