Date: Wed, 29 Nov 2006 21:35:44 +0000 (GMT) From: Robert Watson <rwatson@FreeBSD.org> To: Mike Tancsa <mike@sentex.net> Cc: freebsd-performance@FreeBSD.org Subject: Re: vlan forwarding performance (was Proposed em forwawrding performance) Message-ID: <20061129213301.I16817@fledge.watson.org> In-Reply-To: <200611292128.kATLSIMu041796@lava.sentex.ca> References: <4557CECD.2000609@samsco.org> <200611130158.kAD1wdKE040908@lava.sentex.ca> <4557EF13.9060305@samsco.org> <200611130454.kAD4sZwe041556@lava.sentex.ca> <4557FF7A.8020704@samsco.org> <200611132054.kADKsFvK045726@lava.sentex.ca> <4558E3DC.6080800@samsco.org> <200611200454.kAK4sdat083568@lava.sentex.ca> <7.1.0.9.0.20061120160757.14d4a728@sentex.net> <200611220247.kAM2l9JP095066@lava.sentex.ca> <20061122130947.GM20405@obiwan.tataz.chchile.org> <200611231652.kANGqJsr005016@lava.sentex.ca> <1164356894.4306.1.camel@massimo.datacode.it> <200611272136.kARLaMeG029740@lava.sentex.ca> <20061128090648.d58eb6ae.massimo@cedoc.mo.it> <200611290327.kAT3RnJ0037112@lava.sentex.ca> <200611292128.kATLSIMu041796@lava.sentex.ca>
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On Wed, 29 Nov 2006, Mike Tancsa wrote: > Did some more tests, this time using a single NIC interface in trunking > mode. Strangely enough, the speed is a little faster on HEAD. Perhaps less > interrupt processing ? Results in the usual place > > http://www.tancsa.com//blast.html You may want to datestamp the version of HEAD you're using in each test (assuming it changes between tests). Among other things, I set net.isr.direct=1 as the default a day or two ago, which will affect a broad range of performance characteristics. There have also been VLAN tagging related performance improvements made in HEAD that aren't present in RELENG_6, avoiding extra memory allocations and frees in storing the tags. Robert N M Watson Computer Laboratory University of Cambridge
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