Skip to content

worker: add eventLoopUtilization()

Rodrigo Muino Tomonari requested to merge github/fork/trevnorris/perf-on-worker into master

NOTE: While this is working as it should, I feel the implementation may be a bit clunky. Specifically the one TODO about thread-safe access to a performance mark. Looking for feedback on how this could be improved.

worker: add eventLoopUtilization()

Allow calling eventLoopUtilization() directly on a worker thread:

const worker = new Worker('./foo.js');
const elu = worker.performance.eventLoopUtilization();
setTimeout(() => {
  worker.performance.eventLoopUtilization(elu);
}, 10);

Add a new performance object on the Worker instance that will hopefully one day hold all the other performance metrics, such as nodeTiming.

Include benchmarks and tests.

Also include a commit that improves tests for perf_hooks.performance.eventLoopUtilization().

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

Merge request reports