Date: Fri, 20 Jul 2007 12:03:51 -0700 From: "Jack Vogel" <jfvogel@gmail.com> To: "=?ISO-8859-1?Q?St=E5le_Kristoffersen?=" <staale@kristoffersen.ws> Cc: Vince <jhary@unsane.co.uk>, current@freebsd.org Subject: Re: Slow networkperformance in current? Message-ID: <2a41acea0707201203o28722443v8ab2bc9a8450bb92@mail.gmail.com> In-Reply-To: <20070720184550.GA22877@eschew.pusen.org> References: <20070716190441.GA19282@eschew.pusen.org> <b1fa29170707161247r1a9421cbxf4ec9be1e4c63f7d@mail.gmail.com> <20070716213425.GB19282@eschew.pusen.org> <20070718041159.GC37935@cdnetworks.co.kr> <20070718044700.GE37935@cdnetworks.co.kr> <20070718124350.GA25799@eschew.pusen.org> <46A06D8D.1070604@unsane.co.uk> <20070720122443.GA29372@eschew.pusen.org> <2a41acea0707200810n21843c76s9b0f4f37ef92722f@mail.gmail.com> <20070720184550.GA22877@eschew.pusen.org>
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On 7/20/07, St=E5le Kristoffersen <staale@kristoffersen.ws> wrote: > On 2007-07-20 at 08:10, Jack Vogel wrote: > > On 7/20/07, St=E5le Kristoffersen <staalebk@ifi.uio.no> wrote: > > >On 2007-07-20 at 09:08, Vince wrote: > > >> Silly as it might seem when did you last recompile the iperf port? I= was > > >> about to post a me too post yesterday, until I updated my system to = use > > >> the latest sched_ule at which point iperf froze my system completely= , > > >> recompiling the port fixed the freeze and the <100Mbit/sec on localh= ost. > > >> I think it was compiled against the wrong threading library (been a > > >> while since i last recompiled it.) > > > > > >Actually I just spotted this myself, when I recompiled I got in the ra= nge > > >of 600Mbits/sec to localhost. However I do noot see the increase you s= ee > > >when running it multiple times. I still think 600Mbits/sec is a bit lo= w. > > > > > >If I run it to a remote host I see the same numbers (around 600Mbits/s= ec) > > > > I am actually quite impressed with the stack right now, with our new > > Oplin hardware and the ixgbe driver I have 9.8 Gb/s pumping thru > > it. Of course its all about adequate hardware, configuration, and > > tuning. > > Then it must be something I'm doing wrong. It's not that I'm running such= a > beast of a machine, but it should manage to fill a gigabitlink (and it di= d > a few months ago!). > > Can you point out any tuning I might have detuned? The stack being capable, as I said, of delivering the goods says nothing of the driver, what NIC is it? Did you ask if anyone else with that hardware is seeing a problem, I came into this thread somewhat late. Jack
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