double t = (double)getTickCount();
// code you want to measure the performance
t = ((double)getTickCount() - t)/getTickFrequency();
cout << "times passed in seconds: " << t << endl;
I am using the above code to measure performans.
recently i saw TickMeter class used in the gpu samples.
i wonder why that a useful class not available. is there any reason not to merge it to OpenCV core.