README.md

Writing-High-Performance-C-and-.NET-Code

Devnote conference. Subject: "Writing High-Performance C# and .NET Code"

BenchmarkDotNet v0.13.12, Windows 10 (10.0.19045.4412/22H2/2022Update)
Intel Core i7-9750H CPU 2.60GHz, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.205
  [Host]     : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2
  ShortRun   : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2

Case1_Loop

Method	Mean	Error	StdDev	Allocated
CaseTrue	252.9 ns	4.66 ns	4.13 ns	-
CaseFalse	937.1 ns	18.42 ns	19.71 ns	-

Case2_Condition_Grouping

Method	Mean	Error	StdDev	Allocated
CaseTrue	0.0000 ns	0.0025 ns	0.0019 ns	-
CaseFalse	0.0008 ns	0.0017 ns	0.0015 ns	-

Case3_Loop_Element

Method	Mean	Error	StdDev	Allocated
CaseTrue	42.28 ns	0.250 ns	0.234 ns	-
CaseFalse	994.54 ns	3.261 ns	2.890 ns	-

Case4_Condition

Method	Mean	Error	StdDev	Median	Allocated
CaseTrue	251.2 ns	0.0021 ns	0.0017 ns	0.0010 ns	-
CaseFalse	313.6 ns	0.0019 ns	0.0017 ns	0.0000 ns	-

Case5_Memory_Usege

Method	Mean	Error	StdDev	Median	Gen0	Allocated
CaseTrue	602.8 ns	7.22 ns	6.76 ns	600.3 ns	0.2031	1.25 KB
CaseFalse	1,930.6 ns	66.37 ns	192.55 ns	1,832.6 ns	3.3226	20.37 KB

Case6_Garbage_Collector

Method	Mean	Error	StdDev	Allocated
CaseTrue	227.8 μs	1.23 μs	1.09 μs	-
CaseFalse	229.4 μs	2.55 μs	2.38 μs	-

Case7_JIT_Optimization

Method	Mean	Error	StdDev	Allocated
CaseTrue	9.370 ns	0.1082 ns	0.0959 ns	-
CaseFalse	9.208 ns	0.0181 ns	0.0169 ns	-

Case8_CPlusPlusLib

Method	N	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
CaseCSharp	1000000	3.829 ms	0.2206 ms	0.0121 ms	519.5313	500.0000	500.0000	2049212 B
CaseCPlusPlusTrue	1000000	2.771 ms	0.5431 ms	0.0298 ms	-	-	-	2 B
CaseCPlusPlusFalse	1000000	3.808 ms	0.6354 ms	0.0348 ms	-	-	-	3 B

Case9_Parallelization (The result is not successful with BenchmarkDotNet)

Method	Mean	Error	StdDev	Gen0	Allocated
CaseTrue	27.94 μs	0.197 μs	0.184 μs	0.6409	4042 B
CaseFalse	18.69 μs	0.049 μs	0.041 μs	-	-