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8248391: Unify handling of all OopStorage instances in weak root processing

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OopStorage instance now owned by subsystems, and generalize dead entry notification

Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Reviewed-by: coleenp, tschatzl
This commit is contained in:
Kim Barrett 2020-07-16 17:41:14 -04:00
parent 55af701cc3
commit a8d6a05ce8
42 changed files with 822 additions and 574 deletions
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8
src/hotspot/share/gc/shared/weakProcessor.hpp
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@ -26,6 +26,7 @@
#define SHARE_GC_SHARED_WEAKPROCESSOR_HPP
#include "gc/shared/oopStorageParState.hpp"
#include "gc/shared/oopStorageSetParState.hpp"
#include "gc/shared/workgroup.hpp"
#include "memory/allocation.hpp"
@ -71,6 +72,8 @@ public:
private:
class GangTask;
static void do_serial_parts(BoolObjectClosure* is_alive, OopClosure* keep_alive);
};
class WeakProcessor::Task {
@ -79,17 +82,18 @@ class WeakProcessor::Task {
WeakProcessorPhaseTimes* _phase_times;
uint _nworkers;
SubTasksDone _serial_phases_done;
StorageState* _storage_states;
OopStorageSetWeakParState<false, false> _storage_states;
void initialize();
public:
Task(uint nworkers); // No time tracking.
Task(WeakProcessorPhaseTimes* phase_times, uint nworkers);
~Task();
template<typename IsAlive, typename KeepAlive>
void work(uint worker_id, IsAlive* is_alive, KeepAlive* keep_alive);
void report_num_dead();
};
#endif // SHARE_GC_SHARED_WEAKPROCESSOR_HPP