Category Archives: Uncategorized

Cache Buffer Chains

Recently, I have been seeing cache buffer chains (CBC) in our OLTP database. We have been working to resolve for more than 2 weeks now. I came across following interesting articles:

 

We have got some Oracle recommendations. We are also trying hash partitioning our hot indexes. Lets see how it goes.

Oracle Parallelism: Handle with care

Recently, i have been investigating a performance issue in one of my production data warehouse environment and started reading about controlling and tuning parallelism on the database server.

Two very good links i have hit during this process.

1. http://oracledoug.com/px.pdf

2. https://blogs.oracle.com/datawarehousing/entry/workload_management_statement

This post will be updated with more details and resources in context with parallel tuning.