What are the different types of garbage collectors in JVM?

What are the different types of garbage collectors in JVM?

In JVM, there are several types of garbage collectors, including Serial, Parallel, CMS (Concurrent Mark-Sweep), and G1 (Garbage-First). Each has its own use cases and performance characteristics.

Can you explain how the G1 garbage collector works?

The G1 garbage collector divides the heap into regions and prioritizes the collection of regions with the most garbage. It aims to provide predictable pause times and is suitable for applications with large heaps.

What are the advantages of using the CMS collector?

The CMS collector minimizes pause times by performing most of its work concurrently with the application threads, making it suitable for applications requiring low latency.

Are there any drawbacks to using the Parallel garbage collector?

Yes, the Parallel garbage collector can lead to longer pause times during major collections, as it stops all application threads to reclaim memory, which may not be ideal for latency-sensitive applications.