Date: Tue, 18 Mar 2003 19:49:09 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: Kevin Oberman <oberman@es.net>, Craig Rodrigues <rodrigc@attbi.com>, David Malone <dwmalone@maths.tcd.ie>, sjh@zorak.net, freebsd-current@FreeBSD.ORG Subject: Re: Clock running double time Message-ID: <80738.1048013349@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 18 Mar 2003 19:33:05 %2B0100." <20030318193305.B40906@freebie.xs4all.nl>
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In message <20030318193305.B40906@freebie.xs4all.nl>, Wilko Bulte writes: >On Tue, Mar 18, 2003 at 07:23:48PM +0100, Poul-Henning Kamp wrote: >> In message <20030318182207.C8DF95D07@ptavv.es.net>, "Kevin Oberman" writes: >> >> >> kern.timecounter.hardware=TSC >> > >> >Can someone explain why TSC is preferred to i8254 (or why not)? >> >> Cheaper access & better resolution. > >Which brings me to the question if there is a comprehensive story >on timekeeping in FreeBSD in the docs? Like the EuroBSDcon2002 >one, but with answers to questions like the one above added. The paper I wrote for EuroBSDCon was as comprehensive as I had time to make it. I am sure I could bore people out of their collective wits talking about my timekeeping experiments, and I have no idea what things people are really interested in, so my best suggestion is for people to ask question, and then collect the answers into a FAQ somewhere in the doc section. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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