Resolution of VTune

Resolution of VTune

Ritratto di hoda_dawy
hoda_dawy
Gio, 31/05/2012 - 04:14

Kindly please if you could help me in this issue?

I have a code which conatins functions that take nano-seconds, I want to know if the vtune can profile it or not?

what is the resolution of vtune?

Thanks a lot,
Hoda

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Ritratto di TimP (Intel)
TimP (Intel)
Gio, 31/05/2012 - 05:41

You have options to increase the sampling rate (probably with some influence on performance). My experience may not be relevant, but I suspect you will need run times of at least 10 seconds with each function you want to profile totalling at least 5%, to get useful results.

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Ritratto di sid9559
sid9559
Sab, 02/06/2012 - 20:14

Hello ,

Till I know you can get to a minimum of 1ms sample rate. Also, it is suggested to run your critical function in a loop to get a larger execution time and then do sampling.

Direct link to the same problem.

http://software.intel.com/en-us/forums/showthread.php?t=105387&o=a&s=lr

regards,
siddharth

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Ritratto di iliyapolak
iliyapolak
Ven, 05/04/2013 - 00:27

Time resolution of VTune is around 3ms.

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