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8173335: Improve logging for j.l.ref.reference processing

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Add logs for each phases of references and stats for each worker threads

Reviewed-by: tschatzl, shade
This commit is contained in:
Sangheon Kim 2017-08-10 18:09:19 -07:00
parent ebb8c32e7f
commit ebcca449a0
31 changed files with 1077 additions and 186 deletions
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12
hotspot/src/share/vm/gc/cms/concurrentMarkSweepGeneration.cpp
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@ -5185,6 +5185,7 @@ void CMSCollector::refProcessingWork() {
CMSDrainMarkingStackClosure cmsDrainMarkingStackClosure(this,
_span, &_markBitMap, &_markStack,
&cmsKeepAliveClosure, false /* !preclean */);
ReferenceProcessorPhaseTimes pt(_gc_timer_cm, rp->num_q());
{
GCTraceTime(Debug, gc, phases) t("Reference Processing", _gc_timer_cm);
@ -5211,16 +5212,16 @@ void CMSCollector::refProcessingWork() {
&cmsKeepAliveClosure,
&cmsDrainMarkingStackClosure,
&task_executor,
_gc_timer_cm);
&pt);
} else {
stats = rp->process_discovered_references(&_is_alive_closure,
&cmsKeepAliveClosure,
&cmsDrainMarkingStackClosure,
NULL,
_gc_timer_cm);
&pt);
}
_gc_tracer_cm->report_gc_reference_stats(stats);
pt.print_all_references();
}
// This is the point where the entire marking should have completed.
@ -5261,11 +5262,12 @@ void CMSCollector::refProcessingWork() {
if (rp->processing_is_mt()) {
rp->balance_all_queues();
CMSRefProcTaskExecutor task_executor(*this);
rp->enqueue_discovered_references(&task_executor);
rp->enqueue_discovered_references(&task_executor, &pt);
} else {
rp->enqueue_discovered_references(NULL);
rp->enqueue_discovered_references(NULL, &pt);
}
rp->verify_no_references_recorded();
pt.print_enqueue_phase();
assert(!rp->discovery_enabled(), "should have been disabled");
}