Trevor Norris 589b2a1244 perf_hooks: add idleTime and event loop util ... Use uv_metrics_idle_time() to return a high resolution millisecond timer of the amount of time the event loop has been idle since it was initialized. Include performance.eventLoopUtilization() API to handle the math of calculating the idle and active times. This has been added to prevent accidental miscalculations of the event loop utilization. Such as not taking into consideration offsetting nodeTiming.loopStart or timing differences when being called from a Worker thread. PR-URL: https://github.com/nodejs/node/pull/34938 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Adrian Estrada <edsadr@gmail.com> Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Stephen Belanger <admin@stephenbelanger.com> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com> Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>		2020-08-29 07:02:31 -07:00
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bench-eventlooputil.js