PoExecutePerfCheck

VOID __stdcall PoExecutePerfCheck(){
  UINT64 v0; 
  unsigned __int64 v1; 
  signed __int64 v2; 
  unsigned int v3; 
  UINT64 v4; 
  UINT64 v5; 
  v0 = PpmCheckLastExecutionTime;
  if( PpmCheckLastExecutionTime )
  {
    v1 = (unsigned int)KeTimeIncrement;
    if( PpmCheckPeriod > (unsigned __int64)(unsigned int)KeTimeIncrement )
      v1 = PpmCheckPeriod;
    v2 = *(_QWORD *)&KUSER_SHARED_DATA.InterruptTime.LowPart;
    if( v1 + PpmCheckLastExecutionTime <= *(_QWORD *)&KUSER_SHARED_DATA.InterruptTime.LowPart )
    {
      v3 = 0;
      if( PpmCheckLastExecutionTime != 1 )
      {
        if( PpmCheckLastExecutionTime + v1 + KeMaximumIncrement > *(_QWORD *)&KUSER_SHARED_DATA.InterruptTime.LowPart )
          v2 = v1 + PpmCheckLastExecutionTime;
        v4 = v2 - v1 - PpmCheckLastExecutionTime;
        if( v4 >= v1 )
        {
          v3 = 64;
          v5 = v4 / v1;
          if( (unsigned int)v5 < 0x40 )
            v3 = v5;
        }
      }
      if( v0 == _InterlockedCompareExchange64(
                   (volatile signed __int64 *)&PpmCheckLastExecutionTime,
                   v2,
                   PpmCheckLastExecutionTime) )
        KiInsertQueueDpc((_KDPC *)&PpmCheckStartDpc, (PVOID)v3, 0i64, 0i64, 0);
    }
  }
}

Referenced by: