src/share/vm/gc_implementation/shenandoah/heuristics/shenandoahStaticHeuristics.cpp

rev 10690 : [backport] Cleanup header files and forward declarations
rev 10757 : [backport] Concurrent cycle by default on any external GC request
rev 10772 : [backport] Update copyrights
rev 10775 : [backport] Use ShenandoahAllocationThreshold in ShenandoahStaticHeuristics constructor
rev 10796 : [backport] Fail early when critical barriers are disabled

*** 1,7 ****
  /*
!  * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
   *
--- 1,7 ----
  /*
!  * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
   *
*** 20,40 ****
   * questions.
   *
   */
  
  #include "precompiled.hpp"
  #include "gc_implementation/shenandoah/heuristics/shenandoahStaticHeuristics.hpp"
  #include "gc_implementation/shenandoah/shenandoahCollectionSet.hpp"
  #include "gc_implementation/shenandoah/shenandoahFreeSet.hpp"
  #include "gc_implementation/shenandoah/shenandoahHeapRegion.hpp"
  #include "gc_implementation/shenandoah/shenandoahLogging.hpp"
  
  ShenandoahStaticHeuristics::ShenandoahStaticHeuristics() : ShenandoahHeuristics() {
    // Static heuristics may degrade to continuous if live data is larger
    // than free threshold. ShenandoahAllocationThreshold is supposed to break this,
    // but it only works if it is non-zero.
!   SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahImmediateThreshold, 1);
  }
  
  ShenandoahStaticHeuristics::~ShenandoahStaticHeuristics() {}
  
  bool ShenandoahStaticHeuristics::should_start_normal_gc() const {
--- 20,52 ----
   * questions.
   *
   */
  
  #include "precompiled.hpp"
+ 
  #include "gc_implementation/shenandoah/heuristics/shenandoahStaticHeuristics.hpp"
  #include "gc_implementation/shenandoah/shenandoahCollectionSet.hpp"
  #include "gc_implementation/shenandoah/shenandoahFreeSet.hpp"
  #include "gc_implementation/shenandoah/shenandoahHeapRegion.hpp"
  #include "gc_implementation/shenandoah/shenandoahLogging.hpp"
  
  ShenandoahStaticHeuristics::ShenandoahStaticHeuristics() : ShenandoahHeuristics() {
    // Static heuristics may degrade to continuous if live data is larger
    // than free threshold. ShenandoahAllocationThreshold is supposed to break this,
    // but it only works if it is non-zero.
!   SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahAllocationThreshold, 1);
! 
!   SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent);
!   SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent);
! 
!   // Final configuration checks
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahSATBBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahReadBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahWriteBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahAcmpBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier);
  }
  
  ShenandoahStaticHeuristics::~ShenandoahStaticHeuristics() {}
  
  bool ShenandoahStaticHeuristics::should_start_normal_gc() const {