netdev - Re: UDP regression with packets rates

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Message-ID: <alpine.DEB.1.10.0909101728250.27669@V090114053VZO-1>
Date:	Thu, 10 Sep 2009 17:36:15 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	netdev@...r.kernel.org
Subject: Re: UDP regression with packets rates < 10k per sec

On Thu, 10 Sep 2009, Eric Dumazet wrote:

> On the receiver I did this to trace the latency messages only
>
> # tcpdump -i eth0 not host 239.0.192.2 and port 9002 -n

You do not show the multicast traffic. The latency timestamps requests are
send unicast and at larger intervals. About one per second per mc channel.

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