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Sajal Gupta

ZGC Allocation stall

I am seeing allocation stall even on free heap 

 

Heap size 31 GB

 

GC log : 

https://gceasy.io/my-gc-report.jsp?p=c2hhcmVkLzIwMjIvMDkvOS81OWM5OTg3Njg3LTJoZDltLWdjMS0tMTYtNy00NA==&channel=WEB

  • zgc

  • gc

  • java

  • ZGC Allocation stall

  • free heap

  • G1 GC algorithm

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Ram Lakshmanan

Hello Sajal!

 

 Z GC is known (or prone) for numerous allocation stalls. You may want to experiment with Z GC algorithm only for very large heap size (i.e., >100 GB). Since your heap size is only 31GB, you may consider using G1 GC algorithm. 

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