Date: Mon, 14 Jan 2002 10:34:20 -0800 From: Peter Wemm <peter@wemm.org> To: Bruce Evans <bde@zeta.org.au> Cc: arch@FreeBSD.ORG Subject: Re: Request for review: getcontext, setcontext, etc Message-ID: <20020114183420.F37E0380A@overcee.wemm.org> In-Reply-To: <20020114120026.S3794-100000@gamplex.bde.org>
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Bruce Evans wrote: > 220000 extra FP context switches at 264 cycles each would increase my > buildworld time by a whole 0.34 seconds or 0.025%. There may be more > important things to optimize :-). Hmm. Sounds like I should do some work more on the IPI TLB shootdown stuff to finish it off. That speeds up a test kernel compile (compiling entirely from memory) by 2% to 2.5%. on one of my SMP boxes. I expect it to be a bit better when the kernel has to do page stealing. Cheers, -Peter -- Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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