Re: Non-priv way to collect job stats under Intel?

• Subject: Re: Non-priv way to collect job stats under Intel?
• From: almisr <email@hidden>
• Date: Wed, 2 Aug 2006 20:32:27 +0200
• Delivered-to: email@hidden
• Delivered-to: email@hidden

sorry for your mistery but i've just losed 5 minutes with sysctl
and it's work ...

Best Regards

Assuming that you're willing to accept the stipulation that you can
only look at your own processes, what sorts of information about said
processes would you expect/want such an API to provide? To put it
another way, if you could have your idea "process inspection API",
what would might it look like?

Ideally, given a pid, I'd like an API returning the following ps
values in a struct:

%cpu %mem command lim lstart nice ppid pri sl state time uid xstat

To solve my immediate problem, I'd settle for

lstart state time xstat

Does sysctl on kern.proc work for this? (See the example in the
sysctl 3 man page.)

I grabbed some source described here:
http://ezine.daemonnews.org/200205/sysctl-netbsd.html

I had to change some "struct proc" declarations to "struct
extern_proc", but then it compiles. Running it against my local user
didn't correctly sum up my CPU usage, but it did correctly count my
processes.

Thanks for the link.. but I encountered the same result, it didn't return the CPU usage (just
zeros), so I wonder if it suffers from the same "can't get stats from a running process" limitation
as getrusage(). I pulled it into gdb and looked at the extern_proc p_rtime and p_cputicks fields.
(Heck, I showed the whole struct and every time-like field was empty except __p_starttime.)

This code looks familiar- I think I tried sysctl() for times on PPC long ago and then had to go to
task_from_pid() to get real answers. :-).

Thanks
Jeffrey Johnson
Macintosh Development
Wavefunction, Inc.

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