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Missing time in CPU profiling

 
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awagner



Joined: 20 Jul 2010
Posts: 1

PostPosted: Tue Jul 20, 2010 6:24 am    Post subject: Missing time in CPU profiling Reply with quote

Hi all,

in my CPU profiling results the total time of a method shown does not match the sum of the total times of invoked methods and the methods self time. Why is that? I have included all methods (including Java API).

Are Object.wait times excluded from the list shown, but they are included in the method's total time?

Thanks,
Ambrus
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Thimmonsilly



Joined: 22 Jul 2010
Posts: 1
Location: usa

PostPosted: Thu Jul 22, 2010 6:15 am    Post subject: Reply with quote

If you have side effects like weight gain, go back to your doctor and change pills. Each pill is going to affect people differently. You just have to try it to find out how it will effect you. Talk to your doctor about your concerns. They should be able to help. You have to communicate with them about what you experience when you have trouble so they can choose the right pill for you.
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Tomas Hurka
Posted via mailing list.





PostPosted: Fri Aug 06, 2010 5:00 pm    Post subject: Re: Missing time in CPU profiling Reply with quote

Hi Ambrus,

On 20 Jul 2010, at 08:25, awagner wrote:
Quote:

in my CPU profiling results the total time of a method shown does not match the sum of the total times of invoked methods and the methods self time. Why is that?
I don't know. Maybe it is caused by rounding errors. Can you provide a test case?

Quote:
I have included all methods (including Java API).
This is not important. The total time of a method should be always sum of total times of invoked methods and the self time of the method.

Quote:
Are Object.wait times excluded from the list shown, but they are included in the method's total time?
No, Object.wait times should be excluded from both or included in both.

Bye,
--
Tomas Hurka <mailto:address-removed>
NetBeans Profiler http://profiler.netbeans.org
VisualVM http://visualvm.dev.java.net
Software Engineer, Developer Platforms Group
Sun Microsystems, Praha Czech Republic
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indigo.silica



Joined: 23 May 2011
Posts: 1

PostPosted: Mon May 23, 2011 3:41 pm    Post subject: Re: Missing time in CPU profiling Reply with quote

Hi
Has anyone sorted out this problem? I'm running the profiler on Ubuntu and having the same problem. 1580 ms (8.6% of total elapsed time) has gone missing. I have switched off the dynamic cpu frequency, resetted collected profiling results. Is there anything else that I failed to do?

Any help would be appreciated
Li ^^
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Tomas Hurka
Posted via mailing list.





PostPosted: Wed May 25, 2011 7:33 pm    Post subject: Re: Missing time in CPU profiling Reply with quote

Hi,

On 23 May 2011, at 17:41, indigo.silica wrote:
Quote:
Has anyone sorted out this problem? I'm running the profiler on Ubuntu and having the same problem. 1580 ms (8.6% of total elapsed time) has gone missing. I have switched off the dynamic cpu frequency, resetted collected profiling results. Is there anything else that I failed to do?
You can try to re-calibrate JDK (Profile -> Advanced Commands -> Run Profiler Calibration) and run the profiling session again.


Bye,
--
Tomas Hurka <mailto:address-removed>
NetBeans Profiler http://profiler.netbeans.org
VisualVM http://visualvm.java.net
Software Developer
Oracle, Praha Czech Republic
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