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Home -> Community -> Mailing Lists -> Oracle-L -> RE: oica/oic
Thankyou Jonathan! I read that document, I don't know exactly what Iam =
missing!! But last two months Iam checking my db with lots of db file =
sequential reads(90%) in my statspack, so lots of single block reads and =
multiblock reads with nested loops. Most of my erp tables had indexes =
with stats. So optimizer has same info to make better decision??
-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]
Sent: Monday, April 19, 2004 12:32 PM
To: oracle-l_at_freelists.org
Subject: Re: oica/oic
You might want to read:
http://www.dbazine.com/jlewis18.shtml
It may explain why your batch job is
taking longer to complete.
Even the "least worst" values for these
parameters can have a negative effect
on SOME of your code.=20
Regards
Jonathan Lewis
http://www.jlcomp.demon.co.uk
The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html
April 2004 Iceland http://www.index.is/oracleday.php=20 June 2004 UK - Optimising Oracle Seminar July 2004 USA West Coast, Optimising Oracle Seminar August 2004 Charlotte NC, Optimising Oracle Seminar September 2004 USA East Coast, Optimising Oracle Seminar September2004 UK - Optimising Oracle Seminar
Hi Friends,
Before I used to have default settings of below params, But I changed to =
=3D
40(oica) and 90. But my 1/2hour batch job taking 2 1/2hrs extra time =3D
because of these params!! Is there any particular reason behind it? =3D
Instead of improving performance its decreased drastically, So how to =
=3D
arrive optimal values for these two params? Mine is oracle8174 with =3D
AIX51.
TIA
Raghu.
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.htmlput 'unsubscribe' in the subject line.
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