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6962947: shared TaskQueue statistics

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Reviewed-by: tonyp, ysr
This commit is contained in:
John Coomes 2010-07-16 21:33:21 -07:00
parent 4efdcb87d1
commit daf491a814
11 changed files with 236 additions and 137 deletions
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13
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
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@ -664,19 +664,14 @@ CMSCollector::CMSCollector(ConcurrentMarkSweepGeneration* cmsGen,
return;
}
// XXX use a global constant instead of 64!
typedef struct OopTaskQueuePadded {
OopTaskQueue work_queue;
char pad[64 - sizeof(OopTaskQueue)]; // prevent false sharing
} OopTaskQueuePadded;
typedef Padded<OopTaskQueue> PaddedOopTaskQueue;
for (i = 0; i < num_queues; i++) {
OopTaskQueuePadded *q_padded = new OopTaskQueuePadded();
if (q_padded == NULL) {
PaddedOopTaskQueue *q = new PaddedOopTaskQueue();
if (q == NULL) {
warning("work_queue allocation failure.");
return;
}
_task_queues->register_queue(i, &q_padded->work_queue);
_task_queues->register_queue(i, q);
}
for (i = 0; i < num_queues; i++) {
_task_queues->queue(i)->initialize();