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Better calibration for tdp adjustments to not cause extreme stutters

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This commit is contained in:
IceStormNG
2024-03-01 18:56:55 +01:00
parent 8cd256463a
commit f1198440d4
2 changed files with 45 additions and 19 deletions
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59
app/AutoTDP/AutoTDPService.cs
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@@ -27,11 +27,14 @@ namespace GHelper.AutoTDP
private int FramerateTargetReachedCounter;
private int FramerateDipCounter;
private static readonly int FPSDipHistorySize = 8;
private static readonly int FPSDipHistorySize = 6;
private List<double> FramerateLog = new List<double>();
private double CurrentTDP;
private double LastAdjustment;
private double LastAdjustmentTotal = 0;
private int LastAdjustmentsWithoutImprovement = 0;
private GameInstance? currentGame;
@@ -302,21 +305,21 @@ namespace GHelper.AutoTDP
{
FramerateTargetReachedCounter++;
if (FramerateTargetReachedCounter >= 4
if (FramerateTargetReachedCounter >= 3
&& FramerateTargetReachedCounter < FPSDipHistorySize
&& targetFPS - 0.75 <= FramerateLog.Take(4).Average()
&& FramerateLog.Take(3).Average() <= targetFPS + 0.15)
&& targetFPS - 0.5 <= FramerateLog.Take(3).Average()
&& FramerateLog.Take(3).Average() - 0.05 <= targetFPS)
{
//short dip
FramerateDipCounter++;
correction = targetFPS + 0.75 - currentFramerate;
correction = targetFPS - currentFramerate;
}
else if (FramerateDipCounter >= 5
&& targetFPS - 0.75 <= FramerateLog.Average()
&& FramerateLog.Average() <= targetFPS + 0.15)
else if (FramerateDipCounter >= 4
&& targetFPS - 0.5 <= FramerateLog.Average()
&& FramerateLog.Average() - 0.1 <= targetFPS)
{
//long dip
correction = targetFPS + 1.5 - currentFramerate;
correction = targetFPS + 0.25 - currentFramerate;
FramerateTargetReachedCounter = FPSDipHistorySize;
}
}
@@ -335,11 +338,11 @@ namespace GHelper.AutoTDP
private double TDPDamper(double currentFramerate)
{
if (double.IsNaN(GameFPSPrevious)) GameFPSPrevious = currentFramerate;
double dF = -0.1d;
double dF = -0.15d;
// Calculation
double deltaError = currentFramerate - GameFPSPrevious;
double dT = deltaError / (1010.0 / 1000.0);
double dT = deltaError / (1020.0 / 1000.0);
double damping = CurrentTDP / currentFramerate * dF * dT;
GameFPSPrevious = currentFramerate;
@@ -357,26 +360,44 @@ namespace GHelper.AutoTDP
}
double newPL = CurrentTDP;
Logger.WriteLine("[AutoTDPService] Current: " + (int)GameFPS + "FPS");
double delta = profile.TargetFPS - GameFPS - FPSDipCorrection(GameFPS, profile.TargetFPS);
double fpsCorrection = FPSDipCorrection(GameFPS, profile.GetTDPFPS());
double delta = profile.GetTDPFPS() - GameFPS - fpsCorrection - 1;
delta = Math.Clamp(delta, -15, 15);
double adjustment = (delta * CurrentTDP / GameFPS) * 0.85;
double adjustment = (delta * CurrentTDP / GameFPS) * 0.9;
//Dampen the changes to not change TDP too aggressively which would cause performance issues
adjustment += TDPDamper(GameFPS);
adjustment = Math.Min(adjustment, (CurrentTDP / 5));
if (LastAdjustment > 0 && GameFPS <= GameFPSPrevious && adjustment > 0)
{
LastAdjustmentsWithoutImprovement++;
LastAdjustmentTotal += adjustment;
//Wait for 3 consecutive power increases and at least 3W increased TDP before judging that increasing power does nothing.
if (LastAdjustmentsWithoutImprovement >= 3 && LastAdjustmentTotal > 3)
{
//Do not adjust if increasing power does not improve framerate.
Logger.WriteLine("[AutoTDPService] Not adjusting because no improvement from last increase");
return;
}
}
else
{
LastAdjustmentsWithoutImprovement = 0;
LastAdjustmentTotal = 0;
}
newPL += adjustment;
LastAdjustment = adjustment;
//Respect the limits that the user chose
newPL = Math.Clamp(newPL, profile.MinTdp, profile.MaxTdp);
Logger.WriteLine("[AutoTDPService] Setting Power Limit from " + CurrentTDP + "W to " + newPL + "W, Delta:" + adjustment);
Logger.WriteLine("[AutoTDPService] Setting Power Limit from " + CurrentTDP + "W to " + newPL + "W, Delta:" + adjustment + ", FPS correction: " + fpsCorrection);
//We only limit to full watts, no fractions. In this case, we will cut off the fractional part
powerLimiter.SetCPUPowerLimit(newPL);

5
app/AutoTDP/GameProfile.cs
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@@ -9,5 +9,10 @@ namespace GHelper.AutoTDP
public int MinTdp { get; set; }
public int MaxTdp { get; set; }
public bool Enabled { get; set; }
public int GetTDPFPS()
{
return TargetFPS - 1;
}
}
}