Data Dictionary Hit Ratio - myth or fact?
- From: Tony Sequeira <tony@xxxxxxxxxxxxxxx>
- To: Oracle List <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 18 Mar 2008 09:12:56 +0000
I help support a 10.2.0.3 Database running on MS Windows Server 2003
SP1.
Someone has some old performance scripts that displays the data
dictionary hit ratio amongst others. This comes in in the mid to high
80s. The BCHR on this system is high 90s.
I have received a request to sort this out.
Quote
Data Dictionary Hit Ratio should be > 90% Check Oracle Memory
assignment.
End
I am aware of the BCHR and the arguments against using it, but I cannot
find anything specific on the DDHR. I'm thinking of sending them a link
to Kolk's YAPP Method.
Any pointers?
Of course, they may be right, and this may need addressing.
--
S. Anthony Sequeira
++
Take everything in stride. Trample anyone who gets in your way.
++
--
//www.freelists.org/webpage/oracle-l
Other related posts:
