EgorBot for EgorBo in #50915

EgorBot commented 2 months ago

Processing https://github.com/dotnet/runtime/issues/50915#issuecomment-2326368710 command:

Command

-intel -arm64 --runtimes net6.0 net7.0 net8.0 net9.0 ```cs using BenchmarkDotNet.Attributes; [MemoryDiagnoser] [DisassemblyDiagnoser] public class Bench { private S _s = default(S); private C _c = new C(); private S? _ns = (S?)default(S); [Benchmark] public int Struct() => CallM(_s); [Benchmark] public int Class() => CallM(_c); [Benchmark] public int Nullable() => CallM(_ns); [Benchmark] public int NullableSpecialized() => CallMSpecial(_ns); static int CallM(T t) { if (t is IMyInterface) { return ((IMyInterface)t).M(); } return 0; } static int CallMSpecial(T? t) where T : struct { if (t.HasValue) { return CallM(t.GetValueOrDefault()); } return 0; } } interface IMyInterface { int M(); } struct S : IMyInterface { public int M() => 42; } class C : IMyInterface { public int M() => 42; } ```

(EgorBot will reply in this issue)

EgorBot commented 2 months ago

❌ Failed on Intel: Benchmark run failed

cc @EgorBo (logs)

EgorBot commented 2 months ago

Benchmark results on `Ampere`

BenchmarkDotNet v0.14.0, Ubuntu 22.04.4 LTS (Jammy Jellyfish)
Ampere
  Job-AOJGNR : .NET 6.0.33 (6.0.3324.36610), Arm64 RyuJIT AdvSIMD
  Job-BHTBPA : .NET 7.0.20 (7.0.2024.26716), Arm64 RyuJIT AdvSIMD
  Job-CCEICE : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
  Job-EMWDZB : .NET 9.0.0 (9.0.24.40507), Arm64 RyuJIT AdvSIMD

Method	Runtime	Mean	Error	Ratio	Code Size	Gen0	Allocated	Alloc Ratio
Struct	.NET 6.0	2.2353 ns	0.0001 ns	1.00	40 B	-	-	NA
Struct	.NET 7.0	2.0153 ns	0.0003 ns	0.90	56 B	-	-	NA
Struct	.NET 8.0	1.4509 ns	0.0003 ns	0.65	56 B	-	-	NA
Struct	.NET 9.0	1.3027 ns	0.0003 ns	0.58	36 B	-	-	NA

Class	.NET 6.0	6.8528 ns	0.0691 ns	1.00	132 B	-	-	NA
Class	.NET 7.0	4.6914 ns	0.0018 ns	0.68	152 B	-	-	NA
Class	.NET 8.0	5.2436 ns	0.0006 ns	0.77	192 B	-	-	NA
Class	.NET 9.0	2.4029 ns	0.0008 ns	0.35	48 B	-	-	NA

Nullable	.NET 6.0	92.8404 ns	0.2149 ns	1.00	120 B	0.0014	24 B	1.00
Nullable	.NET 7.0	84.8922 ns	0.1184 ns	0.91	152 B	0.0014	24 B	1.00
Nullable	.NET 8.0	81.9274 ns	0.0945 ns	0.88	184 B	0.0014	24 B	1.00
Nullable	.NET 9.0	70.1827 ns	0.0487 ns	0.76	36 B	0.0014	24 B	1.00

NullableSpecialized	.NET 6.0	2.1223 ns	0.0012 ns	1.00	76 B	-	-	NA
NullableSpecialized	.NET 7.0	2.1239 ns	0.0006 ns	1.00	84 B	-	-	NA
NullableSpecialized	.NET 8.0	0.9391 ns	0.0003 ns	0.44	80 B	-	-	NA
NullableSpecialized	.NET 9.0	1.1526 ns	0.0008 ns	0.54	60 B	-	-	NA

BDN_Artifacts.zip

EgorBot commented 2 months ago

cc @EgorBo (logs)

EgorBot / runtime-utils