From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Hui Kang <hkang@cs.stonybrook.edu>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: dom0 kernel v2.6.32.41 network problem
Date: Fri, 15 Jul 2011 14:19:33 -0400 [thread overview]
Message-ID: <20110715181933.GA18907@dumpdata.com> (raw)
In-Reply-To: <CA45F702.6312%hkang@cs.stonybrook.edu>
On Fri, Jul 15, 2011 at 05:54:11PM +0000, Hui Kang wrote:
> Hi,
> I am running two hosts with xen-4.0.1 and dom0 kernel 2.6.32.41. The two hosts are connected to a Gigbit switch. Then I use iperf to measure the bandwidth and got the results of 200Mbit/second, which is only 1/5 of the available bandwidth.
> Then I boot these two hosts using a vanilla kernel of 2.6.32.34. The iperf reports 937Mbis/s, which is very close to the available link bandwidth.
> So why the pvops dom0 kernel performs so bad? Does anyone observe similar problem? Thanks.
Weird. No idea - I get around 911Mb/s with my dom0 - which is 3.0.0-rc7. Do you
have some debug options turned on?
>
> - Hui
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
next prev parent reply other threads:[~2011-07-15 18:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-15 17:54 dom0 kernel v2.6.32.41 network problem Hui Kang
2011-07-15 18:19 ` Konrad Rzeszutek Wilk [this message]
2011-07-15 18:36 ` Ian Campbell
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