30 #include "logging/log.hpp"
31 #include "logging/logTag.hpp"
32 #include "runtime/os.hpp"
33
34 ShenandoahAggressiveHeuristics::ShenandoahAggressiveHeuristics() : ShenandoahHeuristics() {
35 // Do not shortcut evacuation
36 SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahImmediateThreshold, 100);
37
38 // Aggressive evacuates everything, so it needs as much evac space as it can get
39 SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahEvacReserveOverflow);
40
41 // If class unloading is globally enabled, aggressive does unloading even with
42 // concurrent cycles.
43 if (ClassUnloading) {
44 SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahUnloadClassesFrequency, 1);
45 }
46
47 // Final configuration checks
48 SHENANDOAH_CHECK_FLAG_SET(ShenandoahLoadRefBarrier);
49 SHENANDOAH_CHECK_FLAG_SET(ShenandoahSATBBarrier);
50 SHENANDOAH_CHECK_FLAG_SET(ShenandoahKeepAliveBarrier);
51 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier);
52 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier);
53 }
54
55 void ShenandoahAggressiveHeuristics::choose_collection_set_from_regiondata(ShenandoahCollectionSet* cset,
56 RegionData* data, size_t size,
57 size_t free) {
58 for (size_t idx = 0; idx < size; idx++) {
59 ShenandoahHeapRegion* r = data[idx]._region;
60 if (r->garbage() > 0) {
61 cset->add_region(r);
62 }
63 }
64 }
65
66 bool ShenandoahAggressiveHeuristics::should_start_gc() const {
67 log_info(gc)("Trigger: Start next cycle immediately");
68 return true;
69 }
70
|
30 #include "logging/log.hpp"
31 #include "logging/logTag.hpp"
32 #include "runtime/os.hpp"
33
34 ShenandoahAggressiveHeuristics::ShenandoahAggressiveHeuristics() : ShenandoahHeuristics() {
35 // Do not shortcut evacuation
36 SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahImmediateThreshold, 100);
37
38 // Aggressive evacuates everything, so it needs as much evac space as it can get
39 SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahEvacReserveOverflow);
40
41 // If class unloading is globally enabled, aggressive does unloading even with
42 // concurrent cycles.
43 if (ClassUnloading) {
44 SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahUnloadClassesFrequency, 1);
45 }
46
47 // Final configuration checks
48 SHENANDOAH_CHECK_FLAG_SET(ShenandoahLoadRefBarrier);
49 SHENANDOAH_CHECK_FLAG_SET(ShenandoahSATBBarrier);
50 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier);
51 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier);
52 }
53
54 void ShenandoahAggressiveHeuristics::choose_collection_set_from_regiondata(ShenandoahCollectionSet* cset,
55 RegionData* data, size_t size,
56 size_t free) {
57 for (size_t idx = 0; idx < size; idx++) {
58 ShenandoahHeapRegion* r = data[idx]._region;
59 if (r->garbage() > 0) {
60 cset->add_region(r);
61 }
62 }
63 }
64
65 bool ShenandoahAggressiveHeuristics::should_start_gc() const {
66 log_info(gc)("Trigger: Start next cycle immediately");
67 return true;
68 }
69
|