Re: Going for "all green" buildfarm results

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
Cc: stark <stark(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Going for "all green" buildfarm results
Date: 2006-08-18 00:33:58
Message-ID: 995.1155861238@sss.pgh.pa.us
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"Jim C. Nasby" <jnasby(at)pervasive(dot)com> writes:
> On Thu, Aug 17, 2006 at 03:09:30PM -0400, Alvaro Herrera wrote:
>> I have had an idea for some time that is actually much simpler -- just
>> launch several backends at once to do different things, and randomly
>> send SIGSTOP and SIGCONT to each. If they keep doing whatever they are
>> doing in infinite loops, and you leave it enough time, it's very likely
>> that you'll get problems if the concurrent locking (or whatever) is not
>> right.

> This is probably worth doing as well, since it would simulate what an
> IO-bound system would look like.

While that might be useful for testing, it'd absolutely suck for
debugging, because of the difficulty of reproducing a problem :-(

regards, tom lane

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