Date: Wed, 2 Jul 2008 10:54:00 +0200 (CEST) From: Ingo Flaschberger <if@xip.at> To: Paul <paul@gtcomm.net> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <alpine.LFD.1.10.0807021052041.557@filebunker.xip.at> In-Reply-To: <486B41D5.3060609@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> <20080701033117.GH83626@cdnetworks.co.kr> <ea7b9c170806302050p2a3a5480t29923a4ac2d7c852@mail.gmail.com> <4869ACFC.5020205@gtcomm.net> <4869B025.9080006@gtcomm.net> <486A7E45.3030902@gtcomm.net> <486A8F24.5010000@gtcomm.net> <486A9A0E.6060308@elischer.org> <486B41D5.3060609@gtcomm.net>
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Dear Paul, > SMP DISABLED on my Opteron 2212 (ULE, Preemption on) > Yields ~750kpps in em0 and out em1 (one direction) > I am miffed why this yields more pps than > a) with all 4 cpus running and b) 4 cpus with lagg load balanced over 3 > incoming connections so 3 taskq threads because less locking, less synchronisation, .... > I would be willing to set up test equipment (several servers plugged into a > switch) with ipkvm and power port access > if someone or a group of people want to figure out ways to improve the > routing process, ipfw, and lagg. > > Maximum PPS with one ipfw rule on UP: > tops out about 570Kpps.. almost 200kpps lower ? (frown) can you post the rule here? > I'm going to drop in a 3ghz opteron instead of the 2ghz 2212 that's in here > and see how that scales, using UP same kernel etc I have now. really, please try 32bit and 1 cpu. Kind regards, Ingo Flaschberger
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