JDK-8076476 : Coalesce Metachunks in the Metaspaces
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Duplicate
  • Submitted: 2015-04-01
  • Updated: 2023-08-15
  • Resolved: 2020-09-24
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Other
tbdResolved
Related Reports
Duplicate :  
JDK-8221173 - JEP 387: Elastic Metaspace
Relates :  
JDK-8221173 - JEP 387: Elastic Metaspace
Description
Fragmentation can be a problem in the Metaspaces when lots of space is tied up in chunks of the wrong size.  Chunk sizes are specialized, small and medium (smallest to medium).  Coalesce adjacent specialized chunks into small or medium chunks.  Coalesce adjacent small chunks into medium chunks.
Comments
Duplicate of JDK-8221173.
24-09-2020
This is old :) And yes, it will be solved by JEP387.
24-09-2020
Thomas, I'm assigning this to you. Feel free to close this if it's not relevant after your Metaspace rewrite.
24-09-2020