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Re: Any better plan for this query?.. - Mailing list pgsql-performance

From Simon Riggs
Subject Re: Any better plan for this query?..
Date
Msg-id 1242320627.3843.563.camel@ebony.2ndQuadrant
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In response to Re: Any better plan for this query?..  (Dimitri <dimitrik.fr@gmail.com>)
Responses Re: Any better plan for this query?..
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On Tue, 2009-05-12 at 14:28 +0200, Dimitri wrote:

> As problem I'm considering a scalability issue on Read-Only workload -
> only selects, no disk access, and if on move from 8 to 16 cores we
> gain near 100%, on move from 16 to 32 cores it's only 10%...

Dimitri,

Will you be re-running the Read-Only tests?

Can you run the Dtrace script to assess LWlock contention during the
run?

Would you re-run the tests with a patch?

Thanks,

--
 Simon Riggs           www.2ndQuadrant.com
 PostgreSQL Training, Services and Support

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