What's the most efficient / most precise way to track time in iOS?
Question
I know there is:
NSTimeInterval timestamp = [NSDate timeIntervalSinceReferenceDate];
but there is also:
CFTimeInterval timestamp = CFAbsoluteTimeGetCurrent();
Is one faster / more efficient / more precise than the other?
1 answers
solution1
0 2011-12-07 05:53:54
how about mach_absolute_time ? Don't think you can get more precise than that
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