On Thu, Mar 19, 2009 at 8:42 AM, Anton V. Belyaev
<anton.bely...@gmail.com> wrote:

> I have 4-cored machine, so I expected the query to be able to run for
> a long time without performance degrade for application.

As Bill mentioned, this won't help a bit if you've got a slow / dodgy
/ overloaded IO subsystem.  What does vmstat 1 60 have to say about
the situation when the queries are running?

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