Test runs should take less than 24 hours.

[bobholt]

It appears that Chrome, Firefox, and Edge are returning results in less than 24 hours, but Safari is taking a bit longer. We'd like to try to keep whittling that down.

[AutomatedTester]

wptrunner has a concept of chunking to break up tests into groups for faster test times

[jeffcarp]

@AutomatedTester which flags control that?

[jgraham]

--total-chunks and --this-chunk.

[foolip]

Closing this as we're not pursuing a single goal for all runners any longer. We should rather set goals like "Safari should run in less than 24 hours", whatever we decide to prioritize.