Date: Tue, 01 Jul 2008 12:06:05 -0400 From: Paul <paul@gtcomm.net> To: Stefan Lambrev <stefan.lambrev@moneybookers.com> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <486A55ED.2030304@gtcomm.net> In-Reply-To: <4869F621.4000508@moneybookers.com> 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> <4869F42E.8040904@gtcomm.net> <4869F621.4000508@moneybookers.com>
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Thanks.. I was hoping I wasn't seeing things :> I do not like inconsistencies.. :/ Stefan Lambrev wrote: > > > Greetings Paul, >> >> >> ------OK I'm stumped now.. Rebuilt with preemption and ULE and >> preemption again and it's not doing what it did before.. > I saw this in my configuration too :) Just leave your test running for > longer time and you will see this strange inconsistency in action. > In my configuration I almost always have better throughput after > reboot, which drops latter (5-10min under flood) with 50-60kpps and > after another 10-15min the number of correctly passed packet increase > again. Looks like "auto tuning" of which I'm not aware :) > >> How could that be? Now about 500kpps.. >> >> That kind of inconsistency almost invalidates all my testing.. why >> would it be so much different after trying a bunch of kernel options >> and rebooting a bunch of times and then going back to the original >> config doesn't get you what it did in the beginning.. >> >> I'll have to dig into this further.. never seen anything like it :) >> >> Hopefully the ip_input fix will help free up a few cpu cycles. >> >> >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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