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Subject: Re: a faster way to gettimeofday? rdtsc strangeness
To: terje.eggestad@scali.com (Terje Eggestad)
Date: Thu, 7 Mar 2002 16:17:59 +0000 (GMT)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox),
        davidel@xmailserver.org (Davide Libenzi),
        greearb@candelatech.com (Ben Greear),
        linux-kernel@vger.kernel.org (linux-kernel)
In-Reply-To: <1015515815.4373.61.camel@pc-16.office.scali.no> from "Terje Eggestad" at Mar 07, 2002 04:43:35 PM
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> > They normally adjust the STPCLK which is just fine. I've only seen a few
> > laptops that do it other ways. More fun are people running mixed 300/450
> > BP6 boards where the tsc varies by cpu
> 
> Can /proc/cpuinfo really be trusted in figuring out how long a cycle is?

The bogomip counter is a pretty good bet for any other system, and
gettimeofday() for the general case.
 

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