private void InitializePowerSensors()
{
_energyUnitMultiplier = 0f;
uint eax = 0, edx = 0;
if (Msr.Read(MsrRaplPowerUnit, ref eax, ref edx))
{
switch (Cpu.Microarchitecture)
{
case MicroArchitecture.Silvermont:
case MicroArchitecture.Airmont:
_energyUnitMultiplier = 1.0e-6f * (1 << (int)((eax >> 8) & 0x1F));
break;
default:
_energyUnitMultiplier = 1.0f / (1 << (int)((eax >> 8) & 0x1F));
break;
}
}
if (_energyUnitMultiplier != 0)
{
_powerSensors[0] = new SensorElementIntelCpuPower("package", MsrPkgEneryStatus);
_powerSensors[1] = new SensorElementIntelCpuPower("cores", MsrPp0EneryStatus);
_powerSensors[2] = new SensorElementIntelCpuPower("graphics", MsrPp1EneryStatus);
_powerSensors[3] = new SensorElementIntelCpuPower("dram", MsrDramEnergyStatus);
}
}
public SensorElementIntelCpuPower(string id, uint powerType)
{
_powerNameId = id;
_powerTypeMsr = powerType;
uint eax = 0, edx = 0;
if (!Msr.Read(_powerTypeMsr, ref eax, ref edx))
{
SetActive(false);
return;
}
_lastEnergyTime = DateTime.UtcNow;
_lastEnergyConsumed = eax;
SetActive(true);
}
public override void Update(float energyUnitMultiplier)
{
uint eax = 0, edx = 0;
if (!Msr.Read(_powerTypeMsr, ref eax, ref edx))
{
return;
}
var time = DateTime.UtcNow;
var energyConsumed = eax;
var deltaTime = (float)(time - _lastEnergyTime).TotalSeconds;
if (deltaTime < 0.01)
{
return;
}
Value = energyUnitMultiplier *unchecked (energyConsumed - _lastEnergyConsumed) / deltaTime;
_lastEnergyTime = time;
_lastEnergyConsumed = energyConsumed;
AfterUpdate();
}
private void DetectTimeStampCounterMultiper()
{
switch (Microarchitecture)
{
case MicroArchitecture.NetBurst:
case MicroArchitecture.Atom:
case MicroArchitecture.Core: {
uint eax = 0, edx = 0;
if (Msr.Read(Ia32PerfStatus, ref eax, ref edx))
{
TimeStampCounterMultiper = ((edx >> 8) & 0x1f) + 0.5 * ((edx >> 14) & 1);
}
}
break;
case MicroArchitecture.Nehalem:
case MicroArchitecture.SandyBridge:
case MicroArchitecture.IvyBridge:
case MicroArchitecture.Haswell:
case MicroArchitecture.Broadwell:
case MicroArchitecture.Silvermont:
case MicroArchitecture.Skylake:
case MicroArchitecture.Airmont:
case MicroArchitecture.KabyLake: {
uint eax = 0, edx = 0;
if (Msr.Read(MsrPlatformInfo, ref eax, ref edx))
{
TimeStampCounterMultiper = (eax >> 8) & 0xff;
}
}
break;
default:
TimeStampCounterMultiper = 0;
break;
}
}