Tuning

Poll on Sql Plan Management

Dominic is conducting poll on SPM and Sql Profiles usage on his website. Link can be found here 

I have been using SPM and SQL Profiles (using coe_xfr_profile.sql) to fix plans for queries  and believe me its very easy and quick way of fixing problems in production database. I have not yet used SPM to baseline everything and only using it on need basis for fixing sql with bad plans. I have been reading about  Automatic SQL tuning advisor in 11g and would be  trying to use it and  see the recommendations proposed by it (will keep accept_sql_profiles to false 🙂 )

Performance Management Guide on AIX

While trying to find the amount of physical memory used by oracle process on AIX, I got reference of a document from Metalink:

Performance Management Guide

It tell us about which process is using how much memory and how to interpret the output of commands like: vmstat, svmon, ps on AIX.

Also, to get more information on AIX parameter like: MAXPERM, MINPERM click here

Though I have not explored the complete guide yet, but found it very good to start with.