8280146: Parallel: Remove time log tag

Reviewed-by: tschatzl, iwalulya

Author: albertnetymk

src/hotspot/share/gc/parallel/psParallelCompact.cpp

@@ -1735,10 +1735,6 @@ bool PSParallelCompact::invoke_no_policy(bool maximum_heap_compaction) {
   _gc_timer.register_gc_start();
   _gc_tracer.report_gc_start(heap->gc_cause(), _gc_timer.gc_start());
 
-  TimeStamp marking_start;
-  TimeStamp compaction_start;
-  TimeStamp collection_exit;
-
   GCCause::Cause gc_cause = heap->gc_cause();
   PSYoungGen* young_gen = heap->young_gen();
   PSOldGen* old_gen = heap->old_gen();
@@ -1791,7 +1787,6 @@ bool PSParallelCompact::invoke_no_policy(bool maximum_heap_compaction) {
 
     ref_processor()->start_discovery(maximum_heap_compaction);
 
-    marking_start.update();
     marking_phase(vmthread_cm, &_gc_tracer);
 
     bool max_on_system_gc = UseMaximumCompactionOnSystemGC
@@ -1807,7 +1802,6 @@ bool PSParallelCompact::invoke_no_policy(bool maximum_heap_compaction) {
     // needed by the compaction for filling holes in the dense prefix.
     adjust_roots();
 
-    compaction_start.update();
     compact();
 
     ParCompactionManager::verify_all_region_stack_empty();
@@ -1922,15 +1916,9 @@ bool PSParallelCompact::invoke_no_policy(bool maximum_heap_compaction) {
     old_gen->object_space()->check_mangled_unused_area_complete();
   }
 
-  collection_exit.update();
-
   heap->print_heap_after_gc();
   heap->trace_heap_after_gc(&_gc_tracer);
 
-  log_debug(gc, task, time)("VM-Thread " JLONG_FORMAT " " JLONG_FORMAT " " JLONG_FORMAT,
-                         marking_start.ticks(), compaction_start.ticks(),
-                         collection_exit.ticks());
-
   AdaptiveSizePolicyOutput::print(size_policy, heap->total_collections());
 
   _gc_timer.register_gc_end();

src/hotspot/share/gc/parallel/psScavenge.cpp

@@ -358,12 +358,6 @@ bool PSScavenge::invoke_no_policy() {
 
   _gc_timer.register_gc_start();
 
-  TimeStamp scavenge_entry;
-  TimeStamp scavenge_midpoint;
-  TimeStamp scavenge_exit;
-
-  scavenge_entry.update();
-
   if (GCLocker::check_active_before_gc()) {
     return false;
   }
@@ -463,8 +457,6 @@ bool PSScavenge::invoke_no_policy() {
       ParallelScavengeHeap::heap()->workers().run_task(&task);
     }
 
-    scavenge_midpoint.update();
-
     // Process reference objects discovered during scavenge
     {
       GCTraceTime(Debug, gc, phases) tm("Reference Processing", &_gc_timer);
@@ -669,12 +661,6 @@ bool PSScavenge::invoke_no_policy() {
   heap->print_heap_after_gc();
   heap->trace_heap_after_gc(&_gc_tracer);
 
-  scavenge_exit.update();
-
-  log_debug(gc, task, time)("VM-Thread " JLONG_FORMAT " " JLONG_FORMAT " " JLONG_FORMAT,
-                            scavenge_entry.ticks(), scavenge_midpoint.ticks(),
-                            scavenge_exit.ticks());
-
   AdaptiveSizePolicyOutput::print(size_policy, heap->total_collections());
 
   _gc_timer.register_gc_end();

src/hotspot/share/logging/logPrefix.hpp

@@ -90,7 +90,6 @@ DEBUG_ONLY(size_t Test_log_prefix_prefixer(char* buf, size_t len);)
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, start)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, stats)) \
-  LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, time)) \
   DEBUG_ONLY(LOG_PREFIX(Test_log_prefix_prefixer, LOG_TAGS(logging, test))) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, tlab)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, verify)) \

src/hotspot/share/logging/logTag.hpp

@@ -183,7 +183,6 @@
   DEBUG_ONLY(LOG_TAG(test)) \
   LOG_TAG(thread) \
   LOG_TAG(throttle) \
-  LOG_TAG(time) \
   LOG_TAG(timer) \
   LOG_TAG(tlab) \
   LOG_TAG(tracking) \