On Tue, Jul 10, 2007 at 08:09:11PM +0200, Adrian von Bidder wrote:

> If your  operating system is able to schedule the threads/processes across 
> CPUs, PostgreSQL will use them. 

But notice that hyperthreading imposes its own overhead.  I've not
seen evidence that enabling hyperthreading actually helps, although I
may have overlooked a couple of cases.

A

-- 
Andrew Sullivan  | [EMAIL PROTECTED]
I remember when computers were frustrating because they *did* exactly what 
you told them to.  That actually seems sort of quaint now.
                --J.D. Baldwin

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

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