2008-11-24 07:17:57     cpu %

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2008-11-24 07:17:57     cpu %

Linux Newbie (INDIA)

Message: 65759   




We build the 2007R1 distribution with timer ticks of 10ms & we see that on doing some specific task, cpu% (on issuing top command) shows 10%.


If we build the same distribution with timer ticks as 1ms, then we can see for doing the same task cpu % shows 20%.


Can anyone suggest what might be the cause.


Thanks in Advance




2008-11-25 11:52:45     Re: cpu %

Frank Van Hooft (CANADA)

Message: 65795   


I'm certainly no expert. But if I had to guess, I'd say that by changing the tick from 10 ms to 1 ms, you're forcing the kernel to execute 10 times as much as it normally would, leaving you a lot less CPU cycles free for other tasks.