Hello, We are doing heavily tracing, and for each func we need to get the time, so that’s why I’d like to optimize this. 在 2021年4月29日 +0800 AM12:11，Ian Lance Taylor <i...@golang.org>，写道： > In the meantime we both sent speedups for time.Now. I measured > time.Now as taking about 30 nanoseconds per call before the speedup, > and you measured it as taking about 40 nanoseconds per call before the > speedup. That makes me wonder about your code: if a 40 nanosecond > function is taking 1% to 2% of your execution time, then if your > program is CPU bound you must be calling it a truly extraordinary > number of times. > > Ian
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