RE: Very high buffer gets

  • From: "Nahata, Naveen (US - Glen Mills)" <nnahata@xxxxxxxxxxxx>
  • To: <gorbyx@xxxxxxxxx>, <post.ethan@xxxxxxxxx>
  • Date: Wed, 15 Feb 2006 08:55:50 -0500

You definitely seem to be correct. When I run the same SQL statement
independently from SQL*PLUS with autotrace enabled, I see only 200 LIOs
instead of the huge no. which I see in the trace file.
 
Can you please provide a reference to the document which Oracle support
pointed?
 
Naveen

________________________________

From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Gorbachev
Sent: Wednesday, February 15, 2006 4:20 AM
To: post.ethan@xxxxxxxxx
Cc: joseph@xxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: Re: Very high buffer gets


Let me emphasize it again - we were told by Oracle that LIOs attributed
to this statement is somehow wrong - these LIOs are, in fact, from other
statements. I didn't understand why it's accounted in that way (and I
doubt that support guy knew it either), but coalescing/rebuilding
queues' indexes and IOTs helped.



2006/2/14, Ethan Post <post.ethan@xxxxxxxxx>: 

        Whenever I look at v$sqlarea a couple advanced queue related
        statements are always the top statements, however this is
definitely
        some sort of bug because you never see these processes eating
all that
        much CPU and the numbers reported look down right ridiculous. 
        --
        //www.freelists.org/webpage/oracle-l
        
        
        




-- 
Best regards,
Alex Gorbachev 


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