src/share/vm/gc/parallel/gcTaskThread.cpp

rev 11508 : 8157240: GC task trace logging is incomprehensible
Reviewed-by: tschatzl
rev 11509 : imported patch code_review2

*** 34,65 ****
  #include "runtime/handles.hpp"
  #include "runtime/handles.inline.hpp"
  #include "runtime/os.hpp"
  #include "runtime/thread.hpp"
  
- #define PARGCTHREAD "ParGC Thread"
- 
  GCTaskThread::GCTaskThread(GCTaskManager* manager,
                             uint           which,
                             uint           processor_id) :
    _manager(manager),
    _processor_id(processor_id),
    _time_stamps(NULL),
    _time_stamp_index(0)
  {
    set_id(which);
!   set_name(PARGCTHREAD "#%d", which);
  }
  
  GCTaskThread::~GCTaskThread() {
    if (_time_stamps != NULL) {
      FREE_C_HEAP_ARRAY(GCTaskTimeStamp, _time_stamps);
    }
  }
  
- const char* GCTaskThread::task_name() { return PARGCTHREAD; }
- 
  GCTaskTimeStamp* GCTaskThread::time_stamp_at(uint index) {
    guarantee(index < GCTaskTimeStampEntries, "increase GCTaskTimeStampEntries");
    if (_time_stamps == NULL) {
      // We allocate the _time_stamps array lazily since logging can be enabled dynamically
      GCTaskTimeStamp* time_stamps = NEW_C_HEAP_ARRAY(GCTaskTimeStamp, GCTaskTimeStampEntries, mtGC);
--- 34,61 ----
  #include "runtime/handles.hpp"
  #include "runtime/handles.inline.hpp"
  #include "runtime/os.hpp"
  #include "runtime/thread.hpp"
  
  GCTaskThread::GCTaskThread(GCTaskManager* manager,
                             uint           which,
                             uint           processor_id) :
    _manager(manager),
    _processor_id(processor_id),
    _time_stamps(NULL),
    _time_stamp_index(0)
  {
    set_id(which);
!   set_name("%s#%d", manager->group_name(), which);
  }
  
  GCTaskThread::~GCTaskThread() {
    if (_time_stamps != NULL) {
      FREE_C_HEAP_ARRAY(GCTaskTimeStamp, _time_stamps);
    }
  }
  
  GCTaskTimeStamp* GCTaskThread::time_stamp_at(uint index) {
    guarantee(index < GCTaskTimeStampEntries, "increase GCTaskTimeStampEntries");
    if (_time_stamps == NULL) {
      // We allocate the _time_stamps array lazily since logging can be enabled dynamically
      GCTaskTimeStamp* time_stamps = NEW_C_HEAP_ARRAY(GCTaskTimeStamp, GCTaskTimeStampEntries, mtGC);