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Date:      Thu, 3 Jul 2008 12:52:17 +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.1.10.0807031248250.9569@filebunker.xip.at>
In-Reply-To: <486C7611.9030905@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> <alpine.LFD.1.10.0807021052041.557@filebunker.xip.at> <486C7611.9030905@gtcomm.net>

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Dear Paul,

> Tomorrow comes opteron 2222 so it's 1ghz faster than this one, and I can see 
> if it scales directly with cpu speed or what happens.

can you send me a lspci -v?

> I did another SMP test with an interesting results. I took one of the cpus 
> out of the machine, so it was just left with a single 2212 (dual core)
> and it performed better.  Less contention I suppose?

in smp locking is a performance killer.

My next "router" appliance will be:
http://www.axiomtek.com.tw/products/ViewProduct.asp?view=429

Kind regards,
 	Ingo Flaschberger



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