Re: [TEST/REVIEW] CPU accounting patches



Poul-Henning Kamp <phk@xxxxxxxxxxxxxx> wrote:

In message <20060125110927.dabpg50ls8o8gg4k@xxxxxxxxxxxxxxxxxxx>, 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
here?

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".

How large do you expect the error will be?

Bye,
Alexander.

--
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild @ FreeBSD.org  : PGP ID = 72077137
Eternity is a terrible thought.  I mean, where's it going to end?
		-- Tom Stoppard


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