Re: [TEST/REVIEW] cpu time accounting patch, step 2

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Fri, 10 Feb 2006 08:33:01 +0000
In message <43EC2C4C.5000709_at_rogers.com>, Mike Jakubik writes:
>Poul-Henning Kamp wrote:
>> 	http://phk.freebsd.dk/patch/cputime.patch 
>>
>> This patch enables the new cpu time accounting method for i386 with
>> TSC, all amd64 and sparc64 (?) and i386 with Geode cpu.
>>   
>
>I got a bunch of these during the first bootup.
>
>--
>calcru: runtime went backwards from 1227916 usec to 1227883 usec for pid 
>30 (pagezero)

Yes, that will happen right now until the calibration of the TSC's
max frequency is completed.

I'm analyzing various solutions to that.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk_at_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.
Received on Fri Feb 10 2006 - 07:33:09 UTC

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