Understanding Garbage Collector in Java Part#2

       

   In this blog we will continue about GC and it's types

Types of Garbage Collections:

• Serial collector: it runs in single Parts.

• Concurrent Collector: it runs as the application run, and it doesn't wait for old generation memory to be full.
• 
  
  
  
  
  
  A parallel Collector: it starts to run when the heap is full, is consume multiple of you CPU to 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  perform.
  
  
  
  
  
  
  
  

When to use:

Concurrent Collector:

• there is more Memory.
• high Numbers of CPU’s.
• Application Demands short pauses.

Parallel Collector:

• less Memory.
• less numbers of CPU’s.
• the application demands high through put, and can withstand pauses.

Types of operations:

• MARK: go to root Node and marks all the objects are reachable and mark it as live.
• Mark & Sweep: mark the unreachable objects and deletes it.
• Compacting; compact memory by moving around the objects to free the memory.

My Application