Date: Thu, 07 Feb 2008 11:28:39 +0200 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: Kris Kennaway <kris@FreeBSD.org> Cc: freebsd-performance@freebsd.org Subject: Re: network performance Message-ID: <47AACF47.9040101@moneybookers.com> In-Reply-To: <47AA1395.2090501@FreeBSD.org> References: <4794E6CC.1050107@moneybookers.com> <47A0B023.5020401@moneybookers.com> <m21w7x5ilg.wl%gnn@neville-neil.com> <47A3074A.3040409@moneybookers.com> <47A72EAB.6070602@moneybookers.com> <20080204182945.GA49276@heff.fud.org.nz> <47A780C0.2060201@moneybookers.com> <47A799A6.3070502@moneybookers.com> <47A84751.8020109@moneybookers.com> <47A8D233.8020506@FreeBSD.org> <47A8DCD6.3060209@moneybookers.com> <47A8E1F1.4040309@FreeBSD.org> <47A98CDC.2090407@moneybookers.com> <47A993D0.1060901@FreeBSD.org> <47A99736.8060809@moneybookers.com> <47A99B16.6030305@FreeBSD.org> <47A9B636.3040509@moneybookers.com> <47AA1395.2090501@FreeBSD.org>
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Greetings, Kris Kennaway wrote: > Stefan Lambrev wrote: >> Greetings, >> >> Kris Kennaway wrote: >>> Yes, it is gone with 8.0. Disable the module builds because some of >>> them like this one probably need compile fixes. If you need a >>> subset of modules use MODULES_OVERRIDE=list (in /etc/make.conf) >>> >> Yes, kernel builds. >> I'm still playing with it, but the first results shows that new >> kernel can handle 800k incoming packets (well may be more but I have >> not enough power right now to generate more packets). >> It still answer only to 250K-260K. I guess I'm hitting the limitation >> of syncache/syncookies ? > > Yes, it could be. You may need to tune the net.inet.tcp.syncache > parameters to get better performance. That is good news though. > >> Anyway this netisr2 looks like huge improvement :) > > Actually I forgot to mention: you probably want to set net.isr2.direct=1. net.isr2.direct=1 have very bad impact over performance. When I set it to 1 the server cannot handle more then 230kpps which is worse then vanilla 7.0 :) Do you want to see lock profiling and hwpmc output when enabled? Btw from where I can check if malloc() debugging is enabled, as I want to be sure that no debugging is slowing down the tests? Does `ln -s aj /etc/malloc.conf` disable malloc() dubug? -- Best Wishes, Stefan Lambrev ICQ# 24134177
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