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PiPi

About G1 GC concurrent-cleanup parse

I encountered a phenomenon with G1 GC. In some mixed GC phases, a GC concurrent-cleanup follows after GC cleanup(pic.1), but in other cases, there is no GC concurrent-cleanup after GC cleanup(pic.2). I'd like to ask why there is no GC concurrent-cleanup after some GC cleanups.

pic.1

 

 

pic.2

 

 

 

 

 

 

 

 

 

  • g1gc

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Unni Mana

Hello PiPi,

 

This can be the following scenarios:

  • Interleaved Execution: Concurrent cleanup operations might happen quickly and be interleaved with the application's execution, making them less noticeable in the logs.

  • Short Duration: If the concurrent cleanup operations are short and not significant in the context of the overall GC activity, they may not appear as a separate log entry.

 

 

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PiPi

Hello Unni Mana,

Thank you for your help and answers!

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