[TEST/REVIEW] CPU accounting patches

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jan 25 02:15:33 PST 2006

In message <20060125110927.dabpg50ls8o8gg4k at netchild.homeip.net>, Alexander Lei
dinger writes:

>Are you going to fix those issues for machines which do power saving tricks
>(which may even be useful on servers for some people, not only on laptops),
>or do you not intend to further work on this besides the patches you present

My plan is to add some code to measure and record the maximum "cpu_tick"
frequency we see, and use that to normalize the cpu accounting.

That way, the user/system time reported will get units of "cpu seconds
if the cpu ran full speed".

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.

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