From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Date: Fri, 28 Sep 2007 18:23:44 +0000 Subject: Re: Iperf CPU usage Message-Id: <20070928182344.GB23546@ghostprotocols.net> List-Id: References: <200709281409.23853@strip-the-willow> In-Reply-To: <200709281409.23853@strip-the-willow> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dccp@vger.kernel.org Em Fri, Sep 28, 2007 at 02:09:23PM +0100, Gerrit Renker escreveu: > Earlier on this list there was a thread that the CPU usage of iperf was too high (75%..95%). > Now, Ingo Molnar has found the problem: > > http://marc.info/?l=linux-kernel&m9088670113210&w=2 > > I have tested this and the CPU usage dropped below 10%! > > Will go and add this patch before the other iperf patches and upload it to > http://www.erg.abdn.ac.uk/users/gerrit/dccp/apps/#iperf Yup, Stephen Hemminger also mentioned that a similar patch was already being merged by the iperf guys, IIRC. - Arnaldo