JDK-8321816 : GenShen: Provide a minimum amount of time for an old collection to run
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: repo-shenandoah
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2023-12-11
  • Updated: 2024-07-26
  • Resolved: 2024-01-11
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Other
repo-shenandoahFixed
Related Reports
Duplicate :  
JDK-8322150 - [GenShen] TestPeriodicGC fails with "Generational mode: Should have periodic young GC in logs"
Description
Young collections are allowed to interrupt old collections. Under heavy load, this may result in starvation of old collections - which may in turn lead to even more memory pressure on the young generation. Adding a minimum guaranteed amount of time for the old gc to make progress will help avoid this situation.
Comments
Review: https://github.com/openjdk/shenandoah/pull/371 Pushed: https://github.com/openjdk/shenandoah/commit/80f7780bfd2435486a5941629d6b4913b82e60b7
11-01-2024