Pointers about CPU load measuring

[Brooks Davis]

On Fri, Apr 02, 2004 at 03:38:55PM +0200, Jose Marcio Martins da Cruz wrote:
> 
> Someone can send some pointers on how to measure global CPU load under 
> FreeBSD from a C program ? I'm looking for values for idle/kernel/user, 
> in a similar way as does top. Is there any pointer or doc ?. I'd like to 
> avoir browsing top code.

The top code is rather gross.  You might take a look at the Ganglia
source code.  It products metrics like that in fairly focused functions
so it's more readable then top.

The file you're intrested in is here:

http://cvs.sourceforge.net/viewcvs.py/ganglia/monitor-core/gmond/machines/freebsd.c?rev=1.7&view=auto

If you want to play with the whole thing, the
sysutils/ganglia-monitor-core port may be of use.

-- Brooks

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Any statement of the form "X is the one, true Y" is FALSE.
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