KeUpdateTotalCyclesCurrentThread

UINT64 __stdcall KeUpdateTotalCyclesCurrentThread(_ETHREAD *Thread, UINT64 *TimeStamp){
  UINT64 result; 
  _disable();
  result = KiUpdateTotalCyclesCurrentThread((__int64)KeGetCurrentPrcb(), (__int64)Thread, TimeStamp);
  _enable();
  return result;
}

Referenced by:

KeEnableProfiling
PsQueryTotalCycleTimeProcess