JDK-8274789 : Support archived heap objects in ZGC
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 18
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2021-10-05
  • Updated: 2024-06-20
  • Resolved: 2024-06-20
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tbdResolved
Related Reports
Duplicate :  
JDK-8326035 - CDS Object Streaming
Comments
We are putting this on hold: - ZGC segregate objects by their sizes, but the current CDS archive heap implementation for G1/Serial/Parallel does not support such segregation, so it cannot be used directly on ZGC. - We have a prototype of a completely GC-agnostic implementation (JDK-8310823) but - It shows very small start-up benefit for ZGC - It has performance degradation for the other GCs - There has not been strong custom request for support CDS archive heap in ZGC - In the Leyden project, we might consider other ways of loading pre-initialized heap into the JVM (instead of the current CDS approach)
19-10-2023
We should wait for generational ZGC to be completed first to avoid conflicts.
22-09-2022