An application takes 30% cpu time means what?

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An application takes 30% cpu time it should come down to 1-2 % CPU Time .how can i accompalish this?

Posted 12-Apr-11 23:37pm

yeshgowda

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Perry Bruins 13-Apr-11 5:41am

?? What kind of application is it? what does it do when it takes 30% of the time? do you have some code to look at?

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-04-12T23:46:00

Solution 1

It means it takes 30% time. :-) You can make it any percent less by inserting System.Threading.Thread.Sleep in some places. (Don't do it in any UI thread!)

You can also do it by reducing thread priority (not recommended in almost all cases; avoid it unless you understand very well what are you doing).

I think you understand me right by now: reducing CPU usage by application normally makes no sense. In some application, people struggle for utilizing more CPU (also not very reasonable criteria). You need different thing: make more work in time, and this is something different. CPU time is never a real goal.

—SA

Posted 12-Apr-11 23:46pm

Sergey Alexandrovich Kryukov

Comments

girish sp 13-Apr-11 5:49am

SAK-always your ans takes 5!!

Sergey Alexandrovich Kryukov 13-Apr-11 6:21am

Thank you, Girish.
--SA

yeshgowda 13-Apr-11 5:52am

Thank u for your valuable suggestion

Sergey Alexandrovich Kryukov 13-Apr-11 6:21am

You're welcome.
Something to think about.
Your follow-up Questions and ideas are welcome.
--SA

yeshgowda 13-Apr-11 7:44am

CPU usage is displayed in % whether it is considered as CPU time?

Sergey Alexandrovich Kryukov 13-Apr-11 7:58am

What do you use to see the %?
It's usually % summarized over all cores. If you use Dual-core and run software without any sleep or wait states (for example, an infinite loop with no I/O), the Task Manager will show 50%.
--SA

yeshgowda 13-Apr-11 8:10am

iam not using anything i have opened task manager selected an application in processes tab and clicking performance tab there is a CPU Usage displayed in % and that is considered as CPU time?

Sergey Alexandrovich Kryukov 13-Apr-11 8:53am

"iam not using anything i have opened task manager" means "I'm using Task Manager".
Great, I explained what Task Manager shows for %.
--SA