On 30.08.2011 13:29, Alexander Korotkov wrote:
On Tue, Aug 30, 2011 at 1:13 PM, Heikki Linnakangas<
heikki.linnakan...@enterprisedb.com>  wrote:

So, over 50% of the CPU time is spent in choosing a block from the
temporary files. That should be pretty easy to improve..

Yes, probably we can just remove free blocks sorting.

I'm re-running the tests with that change now. It seems like using the list of free blocks as a simple stack would be better anyway, it probably yields a better cache hit ratio when we re-use blocks that have just been released.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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