Mathias Agopian cfb9c03226 Improve JobSystem, especially under contention ...

- only signal waitAndRelease() when the corresponding job finishes and
only if there is waitAndRelease() active -- instead of signaling 
every time a job ends.

- don't surrender time slice when attempting to steal a job and it fails
as long as some queue has jobs.

- check that we have to wait, because taking the lock

- add a benchmark

This change more than doubles the amount of jobs we can handle per
second (~965,000 jobs/s on Pixel3)

2018-12-14 16:01:17 -08:00

2.1 KiB

Raw Blame History

View Raw