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Slowness in Java Application Due To Increased FullGC Events: G1GC

In this blog, we will see one of the issues and solutions which I found in one of our production servers: our Java application became slow due to more GC pauses.  I will explain a particular approach that can be one of the reasons for initiating more GC pauses.

To understand this article, one must have basic knowledge of the G1GC algorithm of Java for garbage collection. Don’t worry if you don’t have knowledge of G1GC: I will write other articles on the basics of G1GC later, and then you can read this article again. 

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How Many Millions of Dollars Do Enterprises Waste Due to Garbage Collection?

We truly believe enterprises are wasting millions of dollars in garbage collection. We equally believe enterprises are wasting these many millions of dollars even without knowing they are wasting. The intent of this post is to bring visibility to how several millions of dollars are wasted due to garbage collection.

What is Garbage?

All applications have a finite amount of memory. When a new request comes, the application creates objects to service the request. Once a request is processed, all the objects created to service that request are no longer needed. In other terms those objects become garbage. They have to be evicted/removed from the memory so that room is created to service new incoming requests.