Date: Tue, 4 Oct 2005 17:56:09 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Nate Lawson <nate@root.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 apic_vector.s mp_machdep.c src/sys/i386/include smptests.h Message-ID: <200510041756.11272.jhb@FreeBSD.org> In-Reply-To: <4342A3A4.50603@root.org> References: <20051004151539.AAEF716A432@hub.freebsd.org> <4342A3A4.50603@root.org>
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On Tuesday 04 October 2005 11:45 am, Nate Lawson wrote: > John Baldwin wrote: > > jhb 2005-10-04 15:15:22 UTC > > > > FreeBSD src repository > > > > Modified files: (Branch: RELENG_6) > > sys/i386/i386 apic_vector.s mp_machdep.c > > sys/i386/include smptests.h > > Log: > > MFC: Add interrupt counters for IPIs. > > > > Approved by: re (scottl) > > Any idea why we're invalidating ranges of pages so much with MP > contention? Is it perhaps that lazy context switching is a pessimization? No, not sure. The easiest way to test that theory is to turn the lazyfix stuff off and see if it changes. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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