On 19/12/2011 11:04 PM, Rafael Martinez wrote:
Any ideas about why this dramatic change in memory usage when the only
thing apparently changed from our side is the postgres version?

It'd be interesting to know how much of your workload operates with SERIALIZABLE transactions, as the behavior of those has changed significantly in 9.1 and they _are_ more expensive in RAM terms now.

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Craig Ringer

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