From: Tom Lane <tgl@sss.pgh.pa.us>
To: Michael Paquier <michael@paquier.xyz>
Cc: pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Refactor all TAP test suites doing connection checks
Date: Mon, 05 Apr 2021 21:43:38 -0400
Message-ID: <939270.1617673418@sss.pgh.pa.us> (raw)
In-Reply-To: <936576.1617669613@sss.pgh.pa.us>
References: <E1lTDox-0006rF-OV@gemulon.postgresql.org>
<513200.1617634642@sss.pgh.pa.us>
<YGuSe6Q484Eshj2n@paquier.xyz>
<932059.1617663467@sss.pgh.pa.us>
<933130.1617665023@sss.pgh.pa.us>
<YGunFpb3U9zi5DV4@paquier.xyz>
<935457.1617668131@sss.pgh.pa.us>
<YGuq7obSb5BviTHz@paquier.xyz>
<936576.1617669613@sss.pgh.pa.us>
I wrote:
> Well, since it's a race condition it's obviously going to be sensitive to
> machine speed. I think that Perl version, or more likely version of
> IPC::Run or a related module, may enter into it too. prairiedog has
> gotten through the tests several times since yesterday without failing,
> yet it's significantly slower than the other PPC Mac I was able to
> consistently reproduce the problem on. I don't think those two have
> the same vintage of Perl installation, though, so Perl version seems
> like a likely explanation.
Just for the archives' sake:
prairiedog (passed 3 out of 3 tries):
450MHz PPC32
Perl 5.8.3
$ perl -MIPC::Run -e 'print $IPC::Run::VERSION ."\n";'
0.79
(file dates on the IPC::Run files are 2004)
gaur (failed 1 out of 1 tries):
360MHz HPPA
Perl 5.8.9
IPC::Run 0.94 (file dates 2014)
my other PPC Mac (failed consistently, 10 out of 10):
1.33GHz PPC32
Perl 5.8.8
IPC::Run 20180523.0
Not sure what to make of that, though a regression in IPC::Run
seems possible. It's also possible that buildfarm script (the
first two) versus manual invocation (the last) is related somehow.
regards, tom lane
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, michael@paquier.xyz, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Refactor all TAP test suites doing connection checks
In-Reply-To: <939270.1617673418@sss.pgh.pa.us>
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