| From: | Noah Misch <noah(at)leadboat(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Erik Rijkers <er(at)xs4all(dot)nl>, David Steele <david(at)pgmasters(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>, pgsql-hackers-owner(at)postgresql(dot)org |
| Subject: | Re: snapbuild woes |
| Date: | 2017-05-02 03:55:23 |
| Message-ID: | 20170502035523.GA833767@rfd.leadboat.com |
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| Lists: | pgsql-hackers |
On Mon, May 01, 2017 at 12:32:07PM -0400, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)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.
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