Use `process.cpuUsage()` instead of `process.hrtime()`

logicalparadox / matcha

A caffeine driven, simplistic approach to benchmarking.

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Use `process.cpuUsage()` instead of `process.hrtime()` #34

Closed zhujinxuan closed 5 years ago

zhujinxuan commented 6 years ago

In benchmarking, the real world time is not suggested because the real world running time of a function is influenced by other running programs (like browsers, slates, Mail...). This PR use process.cpuUsage, counting only the cpu usage time and excluding the idling time.