TrustJIT_MyEmitDelegate

8bc5644787af489fccd4603c7dc4f0e5cdf80daf

All benchmarks is complicated.

All methods is ILHooked.

Official is the official EmitDelegate.

MineStatic is to test what i found. it's a new way to emit delegate. (store all existing stack values to local variables, ldnull, load them back, call the method, and trust jit)

Mine is the delegate variant of MineStatic, to test what if the delegate can't be static.

Standard* emit the delegate ahead-of-time.

Standard will invoke the method delegate. ILHook loads an extra reference.

Standard2 will call the method. ILHook loads an extra reference.

StandardStatic will call the static version of the method. ILHook do nothing. this is (should be) CelesteTAS EmitStaticDelegate, or emit a static delegate.

StandardStaticAnd will call the static version of the method. ILHook loads an extra reference.

BenchmarkDotNet v0.14.0, Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.202
  [Host]     : .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2
  DefaultJob : .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Median
Padding	0.0003 ns	0.0009 ns	0.0007 ns	0.0000 ns
Standard	33.3453 ns	0.0384 ns	0.0320 ns	33.3307 ns
StandardStatic	20.1886 ns	0.0181 ns	0.0160 ns	20.1868 ns
StandardStaticAnd	31.2268 ns	0.0514 ns	0.0481 ns	31.2148 ns
Standard2	31.4145 ns	0.0436 ns	0.0408 ns	31.4025 ns
Official	33.3748 ns	0.0841 ns	0.0745 ns	33.3396 ns
Mine	32.9361 ns	0.0280 ns	0.0249 ns	32.9239 ns
MineStatic	21.9616 ns	0.0286 ns	0.0253 ns	21.9654 ns

// * Detailed results *

TrustJIT_MyEmitDelegate.Padding: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 0.000 ns, StdErr = 0.000 ns (60.00%), N = 13, StdDev = 0.001 ns

Min = 0.000 ns, Q1 = 0.000 ns, Median = 0.000 ns, Q3 = 0.000 ns, Max = 0.002 ns

IQR = 0.000 ns, LowerFence = -0.000 ns, UpperFence = 0.000 ns

ConfidenceInterval = [-0.001 ns; 0.001 ns] (CI 99.9%), Margin = 0.001 ns (259.07% of Mean)

Skewness = 1.65, Kurtosis = 3.98, MValue = 2

-------------------- Histogram --------------------

[-0.000 ns ; 0.001 ns) | @@@@@@@@@@@

[ 0.001 ns ; 0.002 ns) |

[ 0.002 ns ; 0.002 ns) | @@

---

TrustJIT_MyEmitDelegate.Standard: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 33.345 ns, StdErr = 0.009 ns (0.03%), N = 13, StdDev = 0.032 ns

Min = 33.316 ns, Q1 = 33.322 ns, Median = 33.331 ns, Q3 = 33.356 ns, Max = 33.430 ns

IQR = 0.034 ns, LowerFence = 33.271 ns, UpperFence = 33.407 ns

ConfidenceInterval = [33.307 ns; 33.384 ns] (CI 99.9%), Margin = 0.038 ns (0.12% of Mean)

Skewness = 1.29, Kurtosis = 4, MValue = 2

-------------------- Histogram --------------------

[33.298 ns ; 33.448 ns) | @@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.StandardStatic: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 20.189 ns, StdErr = 0.004 ns (0.02%), N = 14, StdDev = 0.016 ns

Min = 20.160 ns, Q1 = 20.183 ns, Median = 20.187 ns, Q3 = 20.197 ns, Max = 20.216 ns

IQR = 0.014 ns, LowerFence = 20.161 ns, UpperFence = 20.219 ns

ConfidenceInterval = [20.171 ns; 20.207 ns] (CI 99.9%), Margin = 0.018 ns (0.09% of Mean)

Skewness = -0.01, Kurtosis = 2.05, MValue = 2

-------------------- Histogram --------------------

[20.151 ns ; 20.225 ns) | @@@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.StandardStaticAnd: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 31.227 ns, StdErr = 0.012 ns (0.04%), N = 15, StdDev = 0.048 ns

Min = 31.160 ns, Q1 = 31.196 ns, Median = 31.215 ns, Q3 = 31.253 ns, Max = 31.331 ns

IQR = 0.057 ns, LowerFence = 31.110 ns, UpperFence = 31.339 ns

ConfidenceInterval = [31.175 ns; 31.278 ns] (CI 99.9%), Margin = 0.051 ns (0.16% of Mean)

Skewness = 0.5, Kurtosis = 2.25, MValue = 2

-------------------- Histogram --------------------

[31.134 ns ; 31.357 ns) | @@@@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.Standard2: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 31.415 ns, StdErr = 0.011 ns (0.03%), N = 15, StdDev = 0.041 ns

Min = 31.365 ns, Q1 = 31.384 ns, Median = 31.402 ns, Q3 = 31.437 ns, Max = 31.495 ns

IQR = 0.053 ns, LowerFence = 31.305 ns, UpperFence = 31.517 ns

ConfidenceInterval = [31.371 ns; 31.458 ns] (CI 99.9%), Margin = 0.044 ns (0.14% of Mean)

Skewness = 0.61, Kurtosis = 2.01, MValue = 2

-------------------- Histogram --------------------

[31.343 ns ; 31.517 ns) | @@@@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.Official: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 33.375 ns, StdErr = 0.020 ns (0.06%), N = 14, StdDev = 0.075 ns

Min = 33.296 ns, Q1 = 33.324 ns, Median = 33.340 ns, Q3 = 33.403 ns, Max = 33.556 ns

IQR = 0.079 ns, LowerFence = 33.206 ns, UpperFence = 33.521 ns

ConfidenceInterval = [33.291 ns; 33.459 ns] (CI 99.9%), Margin = 0.084 ns (0.25% of Mean)

Skewness = 1.13, Kurtosis = 3.11, MValue = 2

-------------------- Histogram --------------------

[33.255 ns ; 33.597 ns) | @@@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.Mine: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 32.936 ns, StdErr = 0.007 ns (0.02%), N = 14, StdDev = 0.025 ns

Min = 32.911 ns, Q1 = 32.919 ns, Median = 32.924 ns, Q3 = 32.946 ns, Max = 32.989 ns

IQR = 0.027 ns, LowerFence = 32.878 ns, UpperFence = 32.986 ns

ConfidenceInterval = [32.908 ns; 32.964 ns] (CI 99.9%), Margin = 0.028 ns (0.09% of Mean)

Skewness = 0.86, Kurtosis = 2.34, MValue = 2

-------------------- Histogram --------------------

[32.897 ns ; 33.003 ns) | @@@@@@@@@@@@@@

---

TrustJIT_MyEmitDelegate.MineStatic: DefaultJob

Runtime = .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2; GC = Concurrent Workstation

Mean = 21.962 ns, StdErr = 0.007 ns (0.03%), N = 14, StdDev = 0.025 ns

Min = 21.900 ns, Q1 = 21.948 ns, Median = 21.965 ns, Q3 = 21.975 ns, Max = 22.002 ns

IQR = 0.026 ns, LowerFence = 21.909 ns, UpperFence = 22.014 ns

ConfidenceInterval = [21.933 ns; 21.990 ns] (CI 99.9%), Margin = 0.029 ns (0.13% of Mean)

Skewness = -0.7, Kurtosis = 3.33, MValue = 2

-------------------- Histogram --------------------

[21.886 ns ; 22.016 ns) | @@@@@@@@@@@@@@

---

// * Summary *

BenchmarkDotNet v0.14.0, Ubuntu 24.04.2 LTS (Noble Numbat)

AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores

.NET SDK 9.0.202

[Host] : .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2

DefaultJob : .NET 9.0.3 (9.0.325.11113), X64 RyuJIT AVX2

| Method | Mean | Error | StdDev | Median |

|------------------ |-----------:|----------:|----------:|-----------:|

| Padding | 0.0003 ns | 0.0009 ns | 0.0007 ns | 0.0000 ns |

| Standard | 33.3453 ns | 0.0384 ns | 0.0320 ns | 33.3307 ns |

| StandardStatic | 20.1886 ns | 0.0181 ns | 0.0160 ns | 20.1868 ns |

| StandardStaticAnd | 31.2268 ns | 0.0514 ns | 0.0481 ns | 31.2148 ns |

| Standard2 | 31.4145 ns | 0.0436 ns | 0.0408 ns | 31.4025 ns |

| Official | 33.3748 ns | 0.0841 ns | 0.0745 ns | 33.3396 ns |

| Mine | 32.9361 ns | 0.0280 ns | 0.0249 ns | 32.9239 ns |

| MineStatic | 21.9616 ns | 0.0286 ns | 0.0253 ns | 21.9654 ns |

// * Warnings *

ZeroMeasurement

TrustJIT_MyEmitDelegate.Padding: Default -> The method duration is indistinguishable from the empty method duration

// * Hints *

Outliers

TrustJIT_MyEmitDelegate.Padding: Default -> 2 outliers were removed (1.68 ns, 1.69 ns)

TrustJIT_MyEmitDelegate.Standard: Default -> 2 outliers were removed (35.18 ns, 35.22 ns)

TrustJIT_MyEmitDelegate.StandardStatic: Default -> 1 outlier was removed (21.97 ns)

TrustJIT_MyEmitDelegate.Official: Default -> 1 outlier was removed (35.31 ns)

TrustJIT_MyEmitDelegate.Mine: Default -> 1 outlier was removed (35.35 ns)

TrustJIT_MyEmitDelegate.MineStatic: Default -> 1 outlier was removed, 2 outliers were detected (23.57 ns, 23.74 ns)

// * Legends *

Mean : Arithmetic mean of all measurements

Error : Half of 99.9% confidence interval

StdDev : Standard deviation of all measurements

Median : Value separating the higher half of all measurements (50th percentile)

1 ns : 1 Nanosecond (0.000000001 sec)