author | rkennke |
Tue, 02 Apr 2019 18:13:42 +0200 | |
changeset 54383 | cdc3bb0983a6 |
parent 54344 | 8cd2af66ac7c |
child 54423 | 6c0ab8bd8da5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2019, Red Hat, Inc. All rights reserved. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |
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#define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |
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#include "code/codeCache.hpp" |
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#include "gc/shared/oopStorageParState.hpp" |
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#include "gc/shenandoah/shenandoahCodeRoots.hpp" |
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#include "gc/shenandoah/shenandoahHeap.hpp" |
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#include "gc/shenandoah/shenandoahPhaseTimings.hpp" |
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#include "gc/shared/strongRootsScope.hpp" |
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#include "gc/shared/weakProcessor.hpp" |
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#include "gc/shared/weakProcessorPhaseTimes.hpp" |
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#include "gc/shared/workgroup.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/iterator.hpp" |
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class ParallelCLDRootIterator { |
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public: |
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ParallelCLDRootIterator(); |
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void root_cld_do(CLDClosure* strong, CLDClosure* weak); |
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}; |
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enum Shenandoah_process_roots_tasks { |
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SHENANDOAH_RP_PS_Universe_oops_do, |
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SHENANDOAH_RP_PS_JNIHandles_oops_do, |
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SHENANDOAH_RP_PS_ObjectSynchronizer_oops_do, |
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SHENANDOAH_RP_PS_Management_oops_do, |
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SHENANDOAH_RP_PS_SystemDictionary_oops_do, |
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SHENANDOAH_RP_PS_jvmti_oops_do, |
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// Leave this one last. |
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SHENANDOAH_RP_PS_NumElements |
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}; |
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class ShenandoahRootProcessor : public StackObj { |
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SubTasksDone* _process_strong_tasks; |
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StrongRootsScope _srs; |
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OopStorage::ParState<false, false> _par_state_string; |
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ShenandoahPhaseTimings::Phase _phase; |
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ParallelCLDRootIterator _cld_iterator; |
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ShenandoahAllCodeRootsIterator _coderoots_all_iterator; |
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CodeBlobClosure* _threads_nmethods_cl; |
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WeakProcessorPhaseTimes _weak_processor_timings; |
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WeakProcessor::Task _weak_processor_task; |
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bool _processed_weak_roots; |
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void process_java_roots(OopClosure* scan_non_heap_roots, |
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CLDClosure* scan_strong_clds, |
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CLDClosure* scan_weak_clds, |
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CodeBlobClosure* scan_strong_code, |
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ThreadClosure* thread_cl, |
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uint worker_i); |
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void process_vm_roots(OopClosure* scan_non_heap_roots, |
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uint worker_i); |
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void weak_processor_timing_to_shenandoah_timing(const WeakProcessorPhases::Phase wpp, |
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const ShenandoahPhaseTimings::GCParPhases spp, |
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ShenandoahWorkerTimings* worker_times) const; |
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public: |
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ShenandoahRootProcessor(ShenandoahHeap* heap, uint n_workers, |
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ShenandoahPhaseTimings::Phase phase); |
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~ShenandoahRootProcessor(); |
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// Apply oops, clds and blobs to all strongly reachable roots in the system. |
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// Optionally, apply class loader closure to weak clds, depending on class unloading |
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// for the particular GC cycles. |
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void process_strong_roots(OopClosure* oops, |
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CLDClosure* clds, |
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CodeBlobClosure* blobs, |
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ThreadClosure* thread_cl, |
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uint worker_id); |
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// Apply oops, clds and blobs to strongly reachable roots in the system |
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void process_all_roots(OopClosure* oops, |
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CLDClosure* clds, |
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CodeBlobClosure* blobs, |
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ThreadClosure* thread_cl, |
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uint worker_id); |
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// Apply oops, clds and blobs to strongly and weakly reachable roots in the system |
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template <typename IsAlive> |
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void update_all_roots(OopClosure* oops, |
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CLDClosure* clds, |
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CodeBlobClosure* blobs, |
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ThreadClosure* thread_cl, |
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uint worker_id); |
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// For slow debug/verification code |
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void process_all_roots_slow(OopClosure* oops); |
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// Number of worker threads used by the root processor. |
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uint n_workers() const; |
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}; |
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class ShenandoahRootEvacuator : public StackObj { |
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SubTasksDone* _evacuation_tasks; |
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StrongRootsScope _srs; |
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ShenandoahPhaseTimings::Phase _phase; |
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ShenandoahCsetCodeRootsIterator _coderoots_cset_iterator; |
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enum Shenandoah_evacuate_roots_tasks { |
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SHENANDOAH_EVAC_jvmti_oops_do, |
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// Leave this one last. |
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SHENANDOAH_EVAC_NumElements |
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}; |
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public: |
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ShenandoahRootEvacuator(ShenandoahHeap* heap, uint n_workers, |
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ShenandoahPhaseTimings::Phase phase); |
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~ShenandoahRootEvacuator(); |
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void process_evacuate_roots(OopClosure* oops, |
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CodeBlobClosure* blobs, |
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uint worker_id); |
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// Number of worker threads used by the root processor. |
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uint n_workers() const; |
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}; |
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#endif // SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |