Posts Categorized: Technical Blog

How to Collect Cluster Information Using TSQL

Sometime back, I was involved in a project that consisted in collecting information for the servers we are supporting – creating an inventory of servers. Logging into each server and collecting information is a bit tedious when you have hundreds of servers in your environment.  I have spent sometime creating a script that does this…

MetaCPAN JavaScript API

Sometimes, it’s humongous revolutions. Most of the time, it’s itsy bitsy evolutionary steps. Today’s hack definitively sits in the second category, but I have the feeling that it’s a little dab of abstraction that is going to provide a lot of itch relief.

How Different Datatypes Affect Performance

When I was in high school, my practical arts teacher asked us to create a miniature of a structure. This meant looking at the blueprints of an existing structure and using it to create a small replica. I thought that this would be a great opportunity to learn more about reading blueprints and understanding what…

How I Put My Collaborate Agenda Together

It is less than a week before the Collaborate 2013 conference. Most of us are busy putting together our individual agendas for what is shaping up to be a very exciting week. There are so many interesting sessions to choose from! Conference organizers kindly introduced a Show Planner to make planning a bit easier, but in this blog post, I will share with you how I created my agenda for Collaborate.

Performance Settings of Concurrent Managers

This is the second article in a series about internals and performance of concurrent managers. In this post, we’ll take a look at three important settings that affect the performance of the concurrent managers: number of processes, “sleep seconds”, and “cache size”. This article might be a bit on the theoretical side, but it should provide a good understanding of how these settings actually affect the behavior and performance of concurrent managers.

The Internal Workflow of an E-Business Suite Concurrent Manager Process

This is the first article in a series about performance of concurrent processing. We’ll take a closer look at the internals of concurrent managers, the settings that affect their performance and the ways of diagnosing performance and configuration issues. Today we’ll start with an overview of the internal workflow of a concurrent manager process. Enjoy the reading!

How to Tune Using v$mystat

When reviewing the performance of some queries, it is sometimes useful to review the sessions statistics for each execution of the query. I had a situation that required to look at these stats so I could see why one query would run fast and sometimes much slower. I wrote a simple wrapper ksh shell script for the query. It saves the session statistics in a table before and after the execution of the query and then prints out the statistics in a pivot report. This turned out to be very handy to me and therefore I chose to share it with the world :)

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