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7036199: Adding a notification to the implementation of GarbageCollectorMXBeans

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Add a notification to the GarbageCollectorMXBeans

Reviewed-by: acorn, mchung
This commit is contained in:
Frederic Parain 2011-05-12 10:30:11 -07:00
parent d2ab644ad1
commit b38843c8d9
18 changed files with 395 additions and 29 deletions
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10
hotspot/src/share/vm/services/memoryManager.cpp
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@ -33,6 +33,7 @@
#include "services/memoryManager.hpp"
#include "services/memoryPool.hpp"
#include "services/memoryService.hpp"
#include "services/gcNotifier.hpp"
#include "utilities/dtrace.hpp"
HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__begin, char*, int, char*, int,
@ -202,6 +203,7 @@ GCMemoryManager::GCMemoryManager() : MemoryManager() {
_last_gc_lock = new Mutex(Mutex::leaf, "_last_gc_lock", true);
_current_gc_stat = NULL;
_num_gc_threads = 1;
_notification_enabled = false;
}
GCMemoryManager::~GCMemoryManager() {
@ -250,7 +252,8 @@ void GCMemoryManager::gc_begin(bool recordGCBeginTime, bool recordPreGCUsage,
// to ensure the current gc stat is placed in _last_gc_stat.
void GCMemoryManager::gc_end(bool recordPostGCUsage,
bool recordAccumulatedGCTime,
bool recordGCEndTime, bool countCollection) {
bool recordGCEndTime, bool countCollection,
GCCause::Cause cause) {
if (recordAccumulatedGCTime) {
_accumulated_timer.stop();
}
@ -283,6 +286,11 @@ void GCMemoryManager::gc_end(bool recordPostGCUsage,
pool->set_last_collection_usage(usage);
LowMemoryDetector::detect_after_gc_memory(pool);
}
if(is_notification_enabled()) {
bool isMajorGC = this == MemoryService::get_major_gc_manager();
GCNotifier::pushNotification(this, isMajorGC ? "end of major GC" : "end of minor GC",
GCCause::to_string(cause));
}
}
if (countCollection) {
_num_collections++;