Re: reducing isolation tests runtime - Mailing list pgsql-hackers

From Tom Lane
Subject Re: reducing isolation tests runtime
Date
Msg-id 30746.1550080912@sss.pgh.pa.us
Whole thread Raw
In response to Re: reducing isolation tests runtime  (Andres Freund <andres@anarazel.de>)
List pgsql-hackers
Andres Freund <andres@anarazel.de> writes:
> Right, but why don't we allow for more tests in a group, and then use a
> default max_connections to limit concurrency? Having larger groups is
> advantageous wrt test runtime - it reduces the number of artificial
> serialization point where the slowest test slows things down.  Obviously
> there's still a few groups that are needed for test interdependency
> management, but that's comparatively rare. We have have plenty groups
> that are just broken up to stay below max_concurrent_tests.

Meh.  That would also greatly increase the scope for hard-to-reproduce
conflicts between concurrent tests.  I'm not especially excited about
going there.

            regards, tom lane


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