CPU usage of a process

asharma · 03-27-2003, 10:58 AM

Hey there,
Which file has the information about a process' CPU usage ? I went as far as /proc/<pid_no>/
what next ?

stickman · 03-27-2003, 07:36 PM

Does prstat have the info that you're looking for?

nakkaya · 03-27-2003, 09:38 PM

type top and it will list all the proc by their cpu usage

trickykid · 03-28-2003, 12:08 AM

Quote:

Originally posted by nakkaya
type top and it will list all the proc by their cpu usage

I don't believe top is installed by default with a Solaris install, but you can install it afterwards.

You can also try a ps -e or ps -el to list your processes running which I believe will display cpu usage of running processes.

nakkaya · 03-28-2003, 12:11 AM

btw how do you know its solaris?

stickman · 03-28-2003, 09:00 AM

ummm... because the question was asked in the Solaris forum. And top isn't included in a default install. It might be included in the SFW packages though.

trickykid · 03-28-2003, 09:02 AM

Quote:

Originally posted by nakkaya
btw how do you know its solaris?

And how do you know its not Solaris he's talking about?
I would presume it is since he seems to be posting in the Solaris Forum where I haven't seen any mistakes for members to ask something that wasn't Solaris related.

asharma · 03-29-2003, 02:17 PM

Hi all,
Yup, iam looking for info on solaris.
The problem is, i want the information of CPU usage in a particular CPU intensive operation part of my application.

That info cannot be obtained by a utility like ps -ef or top.
I want the CPU Time usage at instant x, perform the operation and then see the CPU time used at instant 'y'.

the diff. in readings at 'y' and 'x' will gimme an idea ...
I've looked into times( ) call. But its granularity is only 1/100 of a second.
Thanks for the interest.