On 05/09/2012 03:36 PM, Joe Conway wrote:
> Good call -- of course that just means my contrived example fails to
> duplicate the real issue :-(
> In the real example, even with work_mem = 1 MB I see the same behavior
> on 9.1.
OK, new script. This more faithfully represents the real life scenario,
and reproduces the issue on HEAD with out-of-the-box config settings,
versus 8.1 which completes the query having never exceeded a very modest
memory usage:
---------------
On pg 8.1 with out of the box config:
VIRT RES SHR
199m 11m 3032
---------------
On pg head with out of the box config:
VIRT RES SHR
1671m 1.5g 16m
---------------
I have not tried your ulimit suggestion yet but will do that next.
Joe
--
Joe Conway
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