Date: Tue, 1 Jul 2008 14:27:15 +0200 (CEST) From: Ingo Flaschberger <if@xip.at> To: Paul <paul@gtcomm.net> Cc: freebsd-net@freebsd.org Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <alpine.LFD.1.10.0807011426180.24529@filebunker.xip.at> In-Reply-To: <4869A099.5070206@gtcomm.net> References: <4867420D.7090406@gtcomm.net> <200806301944.m5UJifJD081781@lava.sentex.ca> <20080701004346.GA3898@stlux503.dsto.defence.gov.au> <alpine.LFD.1.10.0807010257570.19444@filebunker.xip.at> <20080701010716.GF3898@stlux503.dsto.defence.gov.au> <alpine.LFD.1.10.0807010308320.19444@filebunker.xip.at> <486986D9.3000607@monkeybrains.net> <48699960.9070100@gtcomm.net> <ea7b9c170806302005n2a66f592h2127f87a0ba2c6d2@mail.gmail.com> <4869A099.5070206@gtcomm.net>
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Dear Paul, > I have been unable to even come close to livelocking the machine with the em > driver interrupt moderation. > So that to me throws polling out the window. I tried 8000hz with polling > modified to allow 10000 burst and it makes no difference higher hz-values gives you better latenca but less overall speed. 2000hz should be enough. Kind regards, Ingo Flaschberger
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