Petr Jelinek <petr(at)2ndquadrant(dot)com> writes:
> AFAIK gcov can't handle multiple instances of same process being started
> as it just overwrites the coverage files. So for TAP test it will report
> bogus info (as in some code that's executed will look as not executed).
Hm, really? I routinely run "make check" (ie, parallel regression
tests) under coverage, and I get results that seem sane. If I were
losing large chunks of the data, I think I'd have noticed.
regards, tom lane