On 05.06.2012 09:45, Alexander Korotkov wrote:
On Tue, Jun 5, 2012 at 2:00 AM, Alexander Korotkov<aekorot...@gmail.com>wrote:

On Mon, May 28, 2012 at 1:46 AM, Alexander Korotkov<aekorot...@gmail.com>wrote:

On Sat, May 26, 2012 at 12:33 AM, Heikki Linnakangas<
heikki.linnakan...@enterprisedb.com>  wrote:

Alexander, do you still have the test environments and data lying around
that you used for GiST buffering testing last summer? Could you rerun some
of those tests with this patch?

I think I can restore test environment and data. Will rerun tests soon.

I rerun some of tests. There are index build times in seconds for old way
of parent refind and new way of it.

                   old      new
usnoa2           2385     2452
usnoa2_shuffled  8131     8055
uniform          8327     8359

I thinks difference can be described by round error.

Oh, I mean not "round" error, but "random". I.e. not exactly same state of
shared buffers at index build start and so on.

Thanks. I was expecting a small performance gain from the new approach, but I guess not. Oh well, that would've just been a bonus, the important thing is that it now works.

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

--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

Reply via email to