Date: Sun, 29 Jun 2008 20:34:47 -0400 From: Mike Tancsa <mike@sentex.net> To: Ingo Flaschberger <if@xip.at>, 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: <200806300034.m5U0YfsF077111@lava.sentex.ca> In-Reply-To: <alpine.LFD.1.10.0806300214210.10999@filebunker.xip.at> References: <4867420D.7090406@gtcomm.net> <alpine.LFD.1.10.0806291255480.7208@filebunker.xip.at> <4867A9A1.9070507@gtcomm.net> <alpine.LFD.1.10.0806300105170.10999@filebunker.xip.at> <48681A3D.9040509@gtcomm.net> <alpine.LFD.1.10.0806300214210.10999@filebunker.xip.at>
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At 08:16 PM 6/29/2008, Ingo Flaschberger wrote: >Dear Paul, > >>Yes it does but it seems to use a lot more of one cpu than the >>others so It's really not SMP.. Can I stop it from doing this with >>some setting? >>Why can't there be 4 taskq's? > >it is possible, but it need to be coded. > >hz 4000 is also too high, use 1000-2000 >http://www.tancsa.com/blast.html Those are very old test results using a fairly different em driver than whats in the tree. You might look at http://people.yandex-team.ru/~wawa/ on RELENG_6. I havent tested it, but supposedly its optimized for forwarding on SMP hardware ---Mike
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