Re: Slow regression tests on windows

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Gevik Babakhani <pgdev(at)xs4all(dot)nl>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Slow regression tests on windows
Date: 2007-11-05 16:03:08
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On Mon, Nov 05, 2007 at 11:01:26AM -0500, Andrew Dunstan wrote:
> Magnus Hagander wrote:
> >>From what I can see MinGW regression is somewhat slower than MSVC (and
> >>even than Cygwin) on my buildfarm VM that runs all three, even though
> >>the latter two are rate limited by MAX_CONNECTIONS.
> >>
> >
> >Uh, you're saying MSVC and Cygwin somehow differ from MingW?
> >
> >
> >
> I'm saying my buildfarm members differ from each other.

Ah. I thought you meant we had some builtin cap in the regression tests,
which is what confused me.

> In fact, on the last run of each, MinGW was by far the slowest and
> Cygwin the fastest in the "make check" step. But there could be any
> number of reasons for that, including extraneous activity on the VM host
> that could have slowed the whole VM down.

Yeah. It does surprise me a lot that cygwin should be fastest, really.

> Anyway, comparing regression test speeds is probably not very productive.



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