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Re: more consistent gets, but more quickly?

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Mon, 27 Jan 2003 08:49:01 -0800
Message-ID: <F001.0053B2A9.20030127084901@fatcity.com>

Repeat the tests, but take a snapshot of v$sesstat for the session on each test. I would guess that you will find that there is a more than balancing difference in the statistic "buffer is pinned count" which also records accesses to buffered block, but uses a different buffer access mechanism.

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Jonathan Lewis
http://www.jlcomp.demon.co.uk

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-----Original Message-----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Date: 27 January 2003 15:56

> As you see, the first sql generated 43629 consistent gets and the
second sql 22083 consistent gets, this is ok, how ever, the first take 1.63 second and the second take 1.70 second.This seems strange, right? Since in most case, higher consistent gets means longer time. There is no one else running on this server, And I also tested with event 10046 with no wait event.I tested for several times, with the same result.
> Can someone help me understand it?
> Thanks very much.
>
>
>
>
>Regards
>zhu chao
>msn:chao_ping_at_163.com
>www.cnoug.org(China Oracle User Group)
>

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Author: Jonathan Lewis
  INET: jonathan_at_jlcomp.demon.co.uk

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Received on Mon Jan 27 2003 - 10:49:01 CST

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