Date: Wed, 06 Feb 2008 15:29:26 +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: <47A9B636.3040509@moneybookers.com> In-Reply-To: <47A99B16.6030305@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>
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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 ? Anyway this netisr2 looks like huge improvement :) I can't build kernel without option LOCK_PROFILING with your sources: make -V CFILES -V SYSTEM_CFILES -V GEN_CFILES | MKDEP_CPP="cc -E" CC="cc" xargs mkdep -a -f .newdep -O2 -frename-registers -pipe -fno-strict-aliasing -march=nocona -std=c99 -g -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -Wundef -Wno-pointer-sign -fformat-extensions -nostdinc -I. -I/usr/src/sys -I/usr/src/sys/contrib/altq -I/usr/src/sys/contrib/ipfilter -I/usr/src/sys/contrib/pf -I/usr/src/sys/dev/ath -I/usr/src/sys/contrib/ngatm -I/usr/src/sys/dev/twa -I/usr/src/sys/gnu/fs/xfs/FreeBSD -I/usr/src/sys/gnu/fs/xfs/FreeBSD/support -I/usr/src/sys/gnu/fs/xfs -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -fno-common -finline-limit=8000 --param inline-unit-growth=100 --param large-function-growth=1000 -mcmodel=kernel -mno-red-zone -mfpmath=387 -mno-sse -mno-sse2 -mno-mmx -mno-3dnow -msoft-float -fno-asynchronous-unwind-tables -ffreestanding In file included from /usr/src/sys/netinet/ip_output.c:47: /usr/src/sys/sys/rwlock.h:153:2: error: #error LOCK_DEBUG not defined, include <sys/lock.h> before <sys/rwlock.h> mkdep: compile failed *** Error code 1 So I added #include <sys/lock.h>, rebuild kernel and tested again w/o LOCK_PROFILING, but results are the same. I'll use again hwpmc and LOCK_PROFILING to see what's going on. And will try the same benchmark on quad core processor as now numbers of cores/cpus matter :) -- Best Wishes, Stefan Lambrev ICQ# 24134177
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