Date: Thu, 19 Jul 2007 02:02:44 -0700 (PDT) From: Jeff Roberson <jroberson@chesapeake.net> To: Yuri Pankov <yuri@darklight.org.ru> Cc: current@freebsd.org Subject: Re: cvs commit: src/sys/kern sched_ule.c (fwd) Message-ID: <20070719020201.F561@10.0.0.1> In-Reply-To: <20070719085352.GA37441@darklight.org.ru> References: <20070717182819.L92541@10.0.0.1> <20070719085352.GA37441@darklight.org.ru>
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On Thu, 19 Jul 2007, Yuri Pankov wrote: > On Tue, Jul 17, 2007 at 06:31:37PM -0700, Jeff Roberson wrote: >> Thanks everyone for your help. In summary it sounds like there are two >> issues. >> >> 1) kqemu explicitly uses sched_lock. I'll see if I can contact the author >> about fixing this. >> >> 2) As much as a 6-7% slowdown on buildworld on dual core machines as >> compared to 4BSD. I'm not sure if I'm going to do anything about this. >> Once you get to 4 or 8 cores and -j8 or more they even out with ULE having >> significantly less system time. I don't know if I want to compromise that >> for slightly better dual core compile times. >> >> This is in the tree for 7.0 now though. I'm very excited to see this >> happen. >> >> Thanks again, >> Jeff > > Hi Jeff, > > I can't build kernel after this commit, sources updated at Jul, 19, 8am > GMT, amd64: Left a file out of an earlier commit. Sorry! You can delete those asserts or cvsup again. Thanks, Jeff > > cc -c -O2 -frename-registers -pipe -fno-strict-aliasing -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 -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 > -fno-omit-frame-pointer -mcmodel=kernel -mno-red-zone -mfpmath=387 > -mno-sse -mno-sse2 -mno-mmx -mno-3dnow -msoft-float > -fno-asynchronous-unwind-tables -ffreestanding -Werror > /usr/src/sys/kern/sched_ule.c > In file included from /usr/src/sys/kern/sched_ule.c:2554: > /usr/src/sys/kern/kern_switch.c: In function 'maybe_preempt': > /usr/src/sys/kern/kern_switch.c:270: error: 'sched_lock' undeclared > (first use in this function) > /usr/src/sys/kern/kern_switch.c:270: error: (Each undeclared identifier > is reported only once > /usr/src/sys/kern/kern_switch.c:270: error: for each function it appears > in.) > *** Error code 1 > > config: > include GENERIC > ident DARKLIGHT > > nooptions SCHED_4BSD > options SCHED_ULE > > options SHMMAXPGS=65536 > options SEMMNI=40 > options SEMMNS=240 > options SEMUME=40 > options SEMMNU=120 > > options GEOM_JOURNAL > > device sound > device snd_ich > > > TIA and sorry if this is pilot error, > Yuri >
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