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