Strange performance issues on iOS7
I'm testing my app on iPhone 5 which runs iOS 7. Just for test purposes I
run 1000 iterations of cv::integral.
When on iOS 6 the results range were from 0.0005 to 0.0006 sec/iteration.
But on iOS 7 the timing range may differ from 0.0004 to 0.002
sec/iteration. A huge scatter.
It seems to be the OS scheduling bug. But is there any workaround, cause
my app heavily depends on performance?
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