Date: Thu, 5 Oct 2000 13:02:47 -0700 (PDT) From: Richard Hodges <rh@matriplex.com> To: freebsd-hackers@freebsd.org Subject: A decent way to get CPU idle time? Message-ID: <Pine.BSF.4.10.10010051250410.38513-100000@mail.matriplex.com>
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Greetings!
Is there a clean and decent way to find out the percentage
of CPU idle time, like top and systat give? I have browsed
the source for both, and neither appear to have a simple
way of finding this information.
I have already tried and rejected getloadavg. In my
application, two main processes will always account
for 95% or more of the activity.
I suppose I could use RDTSC to grab the clock on my system
calls, and figure a rudimentary sum of CPU activity, but
that won't help me with the expensive file and socket calls.
And I would pretty much have to guess about the CPU time spent
in the kernel.
Any ideas? Thanks.
-Richard
-------------------------------------------
Richard Hodges | Matriplex, inc.
rh@matriplex.com | 769 Basque Way
775-886-6477 | Carson City, NV 89706
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