Re: [HACKERS] snapbuild woes

On Mon, May 01, 2017 at 12:32:07PM -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2017-05-01 08:46:47 -0400, Tom Lane wrote:
> >> 30sec is kind of a big lump from a buildfarm standpoint, especially if
> >> you mean "it runs for 30s on my honkin' fast workstation".  I'm fine
> >> with individual tests that run for ~ 1sec.
> 
> > I was more thinking of pgench -T$XX, rather than constant number of
> > iterations.  I currently can reproduce the issues within like 3-4
> > minutes, so 5s is probably not quite sufficient to get decent coverage.

You might hit the race faster by adding a dedicated stress test function to
regress.c.

> IMO the buildfarm is mainly for verifying portability, not for
> trying to prove that race-like conditions don't exist.

Perhaps so, but it has excelled at both tasks.