Re: 9.2beta1, parallel queries, ReleasePredicateLocks, CheckForSerializableConflictIn in the oprofile

From: Sergey Koposov <koposov(at)ast(dot)cam(dot)ac(dot)uk>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: Ants Aasma <ants(at)cybertec(dot)at>, Robert Haas <robertmhaas(at)gmail(dot)com>, Florian Pflug <fgp(at)phlo(dot)org>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org, Stephen Frost <sfrost(at)snowman(dot)net>
Subject: Re: 9.2beta1, parallel queries, ReleasePredicateLocks, CheckForSerializableConflictIn in the oprofile
Date: 2012-06-06 20:42:45
Message-ID: alpine.LRH.2.02.1206062142220.5707@calx046.ast.cam.ac.uk
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On Wed, 6 Jun 2012, Merlin Moncure wrote:
> I think this is the expected result. In the single user case the
> spinklock never spins and only has to make the cpu-locking cache
> instructions once. can we see results @24 threads?

Here
https://docs.google.com/open?id=0B7koR68V2nM1NDJHLUhNSS0zbUk

*****************************************************
Sergey E. Koposov, PhD, Research Associate
Institute of Astronomy, University of Cambridge
Madingley road, CB3 0HA, Cambridge, UK
Tel: +44-1223-337-551 Web: http://www.ast.cam.ac.uk/~koposov/

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