Date: Mon, 30 Nov 1998 21:02:21 +0200 (SAT) From: John Hay <jhay@mikom.csir.co.za> To: phk@critter.freebsd.dk (Poul-Henning Kamp) Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern kern_clock.c Message-ID: <199811301902.VAA15840@zibbi.mikom.csir.co.za> In-Reply-To: <12846.912451691@critter.freebsd.dk> from Poul-Henning Kamp at "Nov 30, 98 07:48:11 pm"
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> > > We would *not* use the 82C54's timer registers to > > actually try to read out the counter at all unless we were running on > > much older cpu's. > > We do just that, unless it is a SMP, in which case we would need to > synchronize the TSC of the cpus before we can use them. (If only Intel > hadn't yanked the timer from the IO-APIC!) Dave Mills have written code to sync the TSCs on the alphas in Digital Unix. In principal he (and a guy from Digital) have already agread to make it available to us, but first he have to get it out of the digital code without any proprietry pieces comming along. John -- John Hay -- John.Hay@mikom.csir.co.za To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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