4 ms·
It used to be that parallel tests bundled up the tasks in "groups" and went one group at a time. e.g. 12 tests on 4 cores ==> 4 groups with 3 tests each. The p
by rb2k_ 15y ago
It used to be that parallel tests bundled up the tasks in "groups" and went one group at a time.
e.g. 12 tests on 4 cores ==> 4 groups with 3 tests each.
The problem was that some of the groups might have ended up with tests that take 5 minutes each (finished after 15 minutes) and other groups end up with the 20 second ones (finished after 1 minute). Did that balancing every change?
Another question: How does this work for different RSpec formatters? (specifically: junit xml output or html output). Will it still result in a single file?
- jacques_chester 15y agoAnd just like that, we're on the cusp of reinventing batch scheduling! :D In all seriousness though, I think that a look at OS scheduling would provide useful inspiration for test scheduling.
- rb2k_ 15y agoJust a queue that forks processes would work fine, no need to get into OS details :D