Petr Jelinek <petr@2ndquadrant.com> writes:
> On 03/04/2020 16:59, Tom Lane wrote:
>> Petr Jelinek <petr@2ndquadrant.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.
> Parallel regression still just starts single postgres instance no?
But the forked-off children have to write the gcov files independently,
don't they?
regards, tom lane