Date: Mon, 18 Feb 2002 11:43:26 -0800 From: "David O'Brien" <obrien@freebsd.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: current@freebsd.org Subject: Re: Patch to improve mutex collision performance Message-ID: <20020218114326.A98974@dragon.nuxi.com> In-Reply-To: <200202181912.g1IJCGK32122@apollo.backplane.com>; from dillon@apollo.backplane.com on Mon, Feb 18, 2002 at 11:12:16AM -0800 References: <200202181912.g1IJCGK32122@apollo.backplane.com>
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On Mon, Feb 18, 2002 at 11:12:16AM -0800, Matthew Dillon wrote: > While testing some Giant removal stuff I noticed that my current > system sometimes got into an extremely non-optimal flip-flop situation > between two processes contesting Giant on an SMP system which halved the > syscall performance in the test. ... > This will go in tonight if no problems arise. I request that you give say a 3 day review period for this. I know JHB still has limited email access (no DSL yet). This may be something he should review. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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