On Thu, Nov 3, 2011 at 2:51 PM, Claudio Freire <klaussfre...@gmail.com> wrote:
> What other information should I provide?

Forgot all the usual details:

Server is postgresql 9.0.3, running in linux, quite loaded (load
average ~7), WAL on raid 1 2 spindles, data on raid 10 4 spindles, 16G
RAM.

Could it be high contention between the worker processes? (because of
the high load)

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