Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8233189

[lworld] Flat array allocations are limited to 16 GB

    XMLWordPrintable

Details

    • Bug
    • Resolution: Unresolved
    • P4
    • repo-valhalla
    • repo-valhalla
    • hotspot
    • gc

    Description

      Looking at our oop iterator code (at the core of our heap traversal for all GCs) [1]:

      "int oopDesc::oop_iterate_size(OopClosureType* cl, MemRegion mr)"

      It looks like hotspot has never allocated anything larger than 16 GB, i.e. MAX_VALUE(int32_t) * HeapWordSize (8 bytes).

      Look into removing this limitation for large flat arrays

      Attachments

        Issue Links

          Activity

            People

              dsimms David Simms
              dsimms David Simms
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated: