8340408: Shenandoah: Remove redundant task stats printing code in ShenandoahTaskQueue

Reviewed-by: shade, wkemper

Author: zhengyu123

src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp

@@ -225,8 +225,7 @@ void ShenandoahConcurrentMark::finish_mark() {
   assert(Thread::current()->is_VM_thread(), "Must by VM Thread");
   finish_mark_work();
   assert(task_queues()->is_empty(), "Should be empty");
-  TASKQUEUE_STATS_ONLY(task_queues()->print_taskqueue_stats());
-  TASKQUEUE_STATS_ONLY(task_queues()->reset_taskqueue_stats());
+  TASKQUEUE_STATS_ONLY(task_queues()->print_and_reset_taskqueue_stats(""));
 
   ShenandoahHeap* const heap = ShenandoahHeap::heap();
   heap->set_concurrent_mark_in_progress(false);

src/hotspot/share/gc/shenandoah/shenandoahSTWMark.cpp

@@ -133,8 +133,7 @@ void ShenandoahSTWMark::mark() {
   ShenandoahCodeRoots::disarm_nmethods();
 
   assert(task_queues()->is_empty(), "Should be empty");
-  TASKQUEUE_STATS_ONLY(task_queues()->print_taskqueue_stats());
-  TASKQUEUE_STATS_ONLY(task_queues()->reset_taskqueue_stats());
+  TASKQUEUE_STATS_ONLY(task_queues()->print_and_reset_taskqueue_stats(""));
 }
 
 void ShenandoahSTWMark::mark_roots(uint worker_id) {

src/hotspot/share/gc/shenandoah/shenandoahTaskqueue.cpp

@@ -51,45 +51,6 @@ bool ShenandoahObjToScanQueueSet::is_empty() {
   return true;
 }
 
-#if TASKQUEUE_STATS
-void ShenandoahObjToScanQueueSet::print_taskqueue_stats_hdr(outputStream* const st) {
-  st->print_raw_cr("GC Task Stats");
-  st->print_raw("thr "); TaskQueueStats::print_header(1, st); st->cr();
-  st->print_raw("--- "); TaskQueueStats::print_header(2, st); st->cr();
-}
-
-void ShenandoahObjToScanQueueSet::print_taskqueue_stats() const {
-  if (!log_develop_is_enabled(Trace, gc, task, stats)) {
-    return;
-  }
-  Log(gc, task, stats) log;
-  ResourceMark rm;
-  LogStream ls(log.trace());
-  outputStream* st = &ls;
-  print_taskqueue_stats_hdr(st);
-
-  ShenandoahObjToScanQueueSet* queues = const_cast<ShenandoahObjToScanQueueSet*>(this);
-  TaskQueueStats totals;
-  const uint n = size();
-  for (uint i = 0; i < n; ++i) {
-    st->print(UINT32_FORMAT_W(3), i);
-    queues->queue(i)->stats.print(st);
-    st->cr();
-    totals += queues->queue(i)->stats;
-  }
-  st->print("tot "); totals.print(st); st->cr();
-  DEBUG_ONLY(totals.verify());
-
-}
-
-void ShenandoahObjToScanQueueSet::reset_taskqueue_stats() {
-  const uint n = size();
-  for (uint i = 0; i < n; ++i) {
-    queue(i)->stats.reset();
-  }
-}
-#endif // TASKQUEUE_STATS
-
 bool ShenandoahTerminatorTerminator::should_exit_termination() {
   return _heap->cancelled_gc();
 }

src/hotspot/share/gc/shenandoah/shenandoahTaskqueue.hpp

@@ -355,12 +355,6 @@ class ShenandoahObjToScanQueueSet: public ParallelClaimableQueueSet<ShenandoahOb
 
   bool is_empty();
   void clear();
-
-#if TASKQUEUE_STATS
-  static void print_taskqueue_stats_hdr(outputStream* const st);
-  void print_taskqueue_stats() const;
-  void reset_taskqueue_stats();
-#endif // TASKQUEUE_STATS
 };
 
 class ShenandoahTerminatorTerminator : public TerminatorTerminator {