JDK-8320067 : Parallel: Parallelize code root remembered set dead nmethod removal
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 22
  • Priority: P4
  • Status: New
  • Resolution: Unresolved
  • Submitted: 2023-11-14
  • Updated: 2023-11-14
Related Reports
Relates :  
JDK-8317007 - Add bulk removal of dead nmethods during class unloading
Description
Currently parallel GC removes dead nmethods in bulk (after JDK-8317007); parallelization of that phase may be useful, but the current data structure used for the code root remembered sets, a linked list, isn't amenable to parallelization.

Parallelize and (probably) improve the code root remembered sets for parallel gc.