view src/hotspot/share/gc/epsilon/epsilonBarrierSet.hpp @ 55752:8ae33203d600

8162929: Enqueuing dirty cards into a single DCQS during GC does not scale Summary: Refactor into G1RedirtyCardsQueue[Set] and G1DirtyCardQueueSet Reviewed-by: tschatzl, sangheki
author kbarrett
date Fri, 19 Jul 2019 16:47:11 -0400
parents 7b7c75d87f9b
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 * published by the Free Software Foundation.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 * You should have received a copy of the GNU General Public License version
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#include "gc/shared/barrierSetAssembler.hpp"
#include "gc/shared/barrierSet.hpp"

// No interaction with application is required for Epsilon, and therefore
// the barrier set is empty.
class EpsilonBarrierSet: public BarrierSet {
  friend class VMStructs;


  virtual void print_on(outputStream *st) const {}

  virtual void on_thread_create(Thread* thread);
  virtual void on_thread_destroy(Thread* thread);

  template <DecoratorSet decorators, typename BarrierSetT = EpsilonBarrierSet>
  class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {};

struct BarrierSet::GetName<EpsilonBarrierSet> {
  static const BarrierSet::Name value = BarrierSet::EpsilonBarrierSet;

struct BarrierSet::GetType<BarrierSet::EpsilonBarrierSet> {
  typedef ::EpsilonBarrierSet type;