Where To Use Additional Memory

From: <Patty.Charlebois_at_greenshield.ca>
Date: Wed, 8 Dec 2004 10:03:14 -0500
Message-Id: <4D1B0AE09C.1184031DTFSCIBPU@greenshield.ca>

Recently my manager stopped by my desk and asked why the additional 2 Gb=20=

of memory the Sysadmin added to the production server was not improving=20=
our OLTP transaction response time=2E  Ok course I had no idea that any=20=
additional memory had been added to the server so I am obviously not using=20=

it for the database=2E=2E=2E

We are new to Oracle 9=2E2 (9=2E2=2E0=2E5) and AIX 5L (5=2E2)=2E I have read all=
=20=

about the new 'advice' catalog views and memory management in 9i=2E=20=

I have a few questions:=20=

How safe is it to turn on db_cache_advice during peak transaction=20= periods?
How reliable/useful are the stats that I see out of the V$ advice=20= views?
Does anyone have a tried and true method for determining the best place=20= to use additional physical free memory?

TIA=2E=2E=2E Patty

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Received on Wed Dec 08 2004 - 09:01:53 CST