Java Performance Tuning and Optimization

I just followed a course from Oracle University, Course Name:  “Java Performance Tuning and Optimization Ed 1”

Fine! It was a 3 full day course, learnt a lot. I thought to share some of with you guys. Learnt to blend tuning methodology, performance theory and practical tips on solving difficult performance problems for Java applications. Had an opportunity to hone on a series of labs derived from real performance tuning issues.. they all were well organized.  also learnt about various tools and mechanisms for monitoring, profiling and tuning Java applications.

In the first discussion on Application performance I started to believe that “Speed up” ( speeding app in same infrastructure) comes before “Scale up” (vertical scalability like add more memory..) or “Scale out”(horizontal scalability like adding new server..).

When it comes to performance tuning in an app server you should keep in mind known theory of that separate JVM is created for each Java application.

What you understand by “performance”? to me, it is basically “Responsiveness” and “Throughput” of an application. If it is an user interactive app(web or game) we need high responsiveness where we need high throughput from an server side batch processing app.


The approach for tuning(performance) a java application is Monitor> then Profile > and finally Tune!

Comments

Krishnakanth said…
Do you have any documentation that you can share?
September 27, 2014 at 2:52 PM
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