[GitHub] activemq-artemis issue #2484: ARTEMIS-2216 Use a specific executor for pageS...

[franz1981]

Github user franz1981 commented on the issue:

    https://github.com/apache/activemq-artemis/pull/2484
  
    Looking at the CPU graph instead I can see many odd things:
    
    - Page writing is double copying the heap ByteBuffer into a native 
ByteBuffer to write on the page file:
    
![image](https://user-images.githubusercontent.com/13125299/50661999-308bce80-0fa5-11e9-9ee4-053327c36cb1.png)
    - Compaction is stealing lot of cpu and I/O:
    
![image](https://user-images.githubusercontent.com/13125299/50662028-4ef1ca00-0fa5-11e9-9e13-613b569e4c58.png)



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