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MMTk 0.4.0

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@qinsoon qinsoon released this 14 May 09:29
· 519 commits to master since this release
v0.4.0
e4d5b4f
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Learn about vigilant mode.

API

  • The type OpaquePointer is now superseded by more specific types (VMThread/VMMutatorThread/VMWorkerThread).
  • The methods ActivePlan::mutator() and ActivePlan::is_mutator() are no longer unsafe due to the change above.
  • The method ActivePlan::worker() is removed.
  • Internal modules are no longer public visible. API functions are provided where necessary.

Misc

  • Added a feature 'extreme_assertions' that will enable expensive assertions to help debugging.
  • Refactored to clean up some unsafe code.
  • Improved OOM message for failed mmapping.
  • Improved page accounting - the memory used by side metadata is also included and reported.
  • Improved worker statistics - the total time per work packet type will be reported.
  • Fixed a bug that MMTk may overwrite existing memory mapping.
  • Fixed a bug that stress GC was not triggered properly in GenCopy.
  • Fixed a bug in FragmentedMmapper that may cause a memory region being mmapped twice.
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