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  1. JDK
  2. JDK-8202776

Modularize GC allocations in runtime

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
      gc
    • Resolved In Build:
      b17
    • CPU:
      generic
    • OS:
      generic

      Backports

        Description

        Currently, GCs only get to see (and modify) 'large' allocations, e.g. allocations of TLAB blocks (via CH::allocate_new_tlab()) or non-TLAB objects (via CH::mem_allocate()). GCs need to own the whole allocation path, including allocations *from* TLABs. For example, Shenandoah needs to allocate one extra word per object, and do some per-object initialization to set up the forwarding pointer.

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                • Assignee:
                  rkennke Roman Kennke
                  Reporter:
                  rkennke Roman Kennke
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                  Dates

                  • Created:
                    Updated:
                    Resolved: