tree bca7297308437f4ca80517122af59f8c84e5707b
parent d454af473710eedef50c220c3970cf1baf081e87
author Dan Fandrich <dan@coneharvesters.com> 1684463754 -0700
committer Dan Fandrich <dan@coneharvesters.com> 1685988966 -0700

runtests: create multiple test runners when requested

Parallel testing is enabled by using a nonzero value for the -j option
to runtests.pl. Performant values seem to be about 7*num CPU cores, or
1.3*num CPU cores if Valgrind is in use.

Flaky tests due to improper log locking (bug #11231) are exacerbated
while parallel testing, so it is not enabled by default yet.

Fixes #10818
Closes #11246