25 #include "gc_implementation/shenandoah/shenandoahPassiveMode.hpp"
  26 #include "gc_implementation/shenandoah/heuristics/shenandoahPassiveHeuristics.hpp"
  27 #include "gc_implementation/shenandoah/shenandoahLogging.hpp"
  28 
  29 void ShenandoahPassiveMode::initialize_flags() const {
  30   // Do not allow concurrent cycles.
  31   FLAG_SET_DEFAULT(ExplicitGCInvokesConcurrent, false);
  32   FLAG_SET_DEFAULT(ShenandoahImplicitGCInvokesConcurrent, false);
  33 
  34   // Passive runs with max speed, reacts on allocation failure.
  35   FLAG_SET_DEFAULT(ShenandoahPacing, false);
  36 
  37   // No need for evacuation reserve with Full GC, only for Degenerated GC.
  38   if (!ShenandoahDegeneratedGC) {
  39     SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahEvacReserve, 0);
  40   }
  41 
  42   // Disable known barriers by default.
  43   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahLoadRefBarrier);
  44   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahSATBBarrier);


  45   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCASBarrier);
  46   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCloneBarrier);
  47 
  48   // Final configuration checks
  49   // No barriers are required to run.
  50 }
  51 ShenandoahHeuristics* ShenandoahPassiveMode::initialize_heuristics() const {
  52   if (ShenandoahGCHeuristics != NULL) {
  53     return new ShenandoahPassiveHeuristics();
  54   }
  55   ShouldNotReachHere();
  56   return NULL;
  57 }

  25 #include "gc_implementation/shenandoah/shenandoahPassiveMode.hpp"
  26 #include "gc_implementation/shenandoah/heuristics/shenandoahPassiveHeuristics.hpp"
  27 #include "gc_implementation/shenandoah/shenandoahLogging.hpp"
  28 
  29 void ShenandoahPassiveMode::initialize_flags() const {
  30   // Do not allow concurrent cycles.
  31   FLAG_SET_DEFAULT(ExplicitGCInvokesConcurrent, false);
  32   FLAG_SET_DEFAULT(ShenandoahImplicitGCInvokesConcurrent, false);
  33 
  34   // Passive runs with max speed, reacts on allocation failure.
  35   FLAG_SET_DEFAULT(ShenandoahPacing, false);
  36 
  37   // No need for evacuation reserve with Full GC, only for Degenerated GC.
  38   if (!ShenandoahDegeneratedGC) {
  39     SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahEvacReserve, 0);
  40   }
  41 
  42   // Disable known barriers by default.
  43   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahLoadRefBarrier);
  44   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahSATBBarrier);
  45   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahKeepAliveBarrier);
  46   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahStoreValEnqueueBarrier);
  47   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCASBarrier);
  48   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCloneBarrier);
  49 
  50   // Final configuration checks
  51   // No barriers are required to run.
  52 }
  53 ShenandoahHeuristics* ShenandoahPassiveMode::initialize_heuristics() const {
  54   if (ShenandoahGCHeuristics != NULL) {
  55     return new ShenandoahPassiveHeuristics();
  56   }
  57   ShouldNotReachHere();
  58   return NULL;
  59 }