[Interest] CPU usage
Thiago Macieira
thiago.macieira at intel.com
Fri Dec 30 19:46:31 CET 2016
Em sexta-feira, 30 de dezembro de 2016, às 19:13:58 BRST, Igor Mironchik
escreveu:
> Hello,
>
> I do app that uses USB camera. And I found that this app uses very much
> CPU time. Profiler says that:
>
> AMGetErrorTextW 8.82s 11.22s 38.74% 49.28% quartz
> [unknown] 0 0x5ded687f
> MsgWaitForMultipleObjectsEx 6.62s 6.62s 29.08% 29.09%
> USER32 [unknown] 0 0x75578977
>
> What can I do to optimize this?
Profile it. When you find out what function is taking so much CPU time, break it
down into smaller parts until you identify the coding mistake.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
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