├── .gitattributes ├── .gitignore ├── ForLoopTest.cs ├── ForeachVsForTest.cs ├── GotoVsSwitch.cs ├── IntParseVsTryParseTest.cs ├── LinqWhereAndTest.cs ├── NestedForeachVsSelectManyTest.cs ├── NullVsEmptyCollection.cs ├── Program.cs ├── README.md ├── SplitTest.cs ├── StringReplaceTest.cs ├── csharp-benchmarks.csproj └── csharp-benchmarks.sln /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). Diff markers may cause the following 21 | # file extensions to fail to load in VS. An alternative would be to treat 22 | # these files as binary and thus will always conflict and require user 23 | # intervention with every merge. To do so, just uncomment the entries below 24 | ############################################################################### 25 | #*.sln merge=binary 26 | #*.csproj merge=binary 27 | #*.vbproj merge=binary 28 | #*.vcxproj merge=binary 29 | #*.vcproj merge=binary 30 | #*.dbproj merge=binary 31 | #*.fsproj merge=binary 32 | #*.lsproj merge=binary 33 | #*.wixproj merge=binary 34 | #*.modelproj merge=binary 35 | #*.sqlproj merge=binary 36 | #*.wwaproj merge=binary 37 | 38 | ############################################################################### 39 | # behavior for image files 40 | # 41 | # image files are treated as binary by default. 42 | ############################################################################### 43 | #*.jpg binary 44 | #*.png binary 45 | #*.gif binary 46 | 47 | ############################################################################### 48 | # diff behavior for common document formats 49 | # 50 | # Convert binary document formats to text before diffing them. This feature 51 | # is only available from the command line. Turn it on by uncommenting the 52 | # entries below. 53 | ############################################################################### 54 | #*.doc diff=astextplain 55 | #*.DOC diff=astextplain 56 | #*.docx diff=astextplain 57 | #*.DOCX diff=astextplain 58 | #*.dot diff=astextplain 59 | #*.DOT diff=astextplain 60 | #*.pdf diff=astextplain 61 | #*.PDF diff=astextplain 62 | #*.rtf diff=astextplain 63 | #*.RTF diff=astextplain 64 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Ww][Ii][Nn]32/ 27 | [Aa][Rr][Mm]/ 28 | [Aa][Rr][Mm]64/ 29 | bld/ 30 | [Bb]in/ 31 | [Oo]bj/ 32 | [Oo]ut/ 33 | [Ll]og/ 34 | [Ll]ogs/ 35 | 36 | # Visual Studio 2015/2017 cache/options directory 37 | .vs/ 38 | # Uncomment if you have tasks that create the project's static files in wwwroot 39 | #wwwroot/ 40 | 41 | # Visual Studio 2017 auto generated files 42 | Generated\ Files/ 43 | 44 | # MSTest test Results 45 | [Tt]est[Rr]esult*/ 46 | [Bb]uild[Ll]og.* 47 | 48 | # NUnit 49 | *.VisualState.xml 50 | TestResult.xml 51 | nunit-*.xml 52 | 53 | # Build Results of an ATL Project 54 | [Dd]ebugPS/ 55 | [Rr]eleasePS/ 56 | dlldata.c 57 | 58 | # Benchmark Results 59 | BenchmarkDotNet.Artifacts/ 60 | 61 | # .NET Core 62 | project.lock.json 63 | project.fragment.lock.json 64 | artifacts/ 65 | 66 | # ASP.NET Scaffolding 67 | ScaffoldingReadMe.txt 68 | 69 | # StyleCop 70 | StyleCopReport.xml 71 | 72 | # Files built by Visual Studio 73 | *_i.c 74 | *_p.c 75 | *_h.h 76 | *.ilk 77 | *.meta 78 | *.obj 79 | *.iobj 80 | *.pch 81 | *.pdb 82 | *.ipdb 83 | *.pgc 84 | *.pgd 85 | *.rsp 86 | *.sbr 87 | *.tlb 88 | *.tli 89 | *.tlh 90 | *.tmp 91 | *.tmp_proj 92 | *_wpftmp.csproj 93 | *.log 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*.json 147 | coverage*.xml 148 | coverage*.info 149 | 150 | # Visual Studio code coverage results 151 | *.coverage 152 | *.coveragexml 153 | 154 | # NCrunch 155 | _NCrunch_* 156 | .*crunch*.local.xml 157 | nCrunchTemp_* 158 | 159 | # MightyMoose 160 | *.mm.* 161 | AutoTest.Net/ 162 | 163 | # Web workbench (sass) 164 | .sass-cache/ 165 | 166 | # Installshield output folder 167 | [Ee]xpress/ 168 | 169 | # DocProject is a documentation generator add-in 170 | DocProject/buildhelp/ 171 | DocProject/Help/*.HxT 172 | DocProject/Help/*.HxC 173 | DocProject/Help/*.hhc 174 | DocProject/Help/*.hhk 175 | DocProject/Help/*.hhp 176 | DocProject/Help/Html2 177 | DocProject/Help/html 178 | 179 | # Click-Once directory 180 | publish/ 181 | 182 | # Publish Web Output 183 | *.[Pp]ublish.xml 184 | *.azurePubxml 185 | # Note: Comment the next line if you want to checkin your web deploy settings, 186 | # but database connection strings (with potential passwords) will be unencrypted 187 | *.pubxml 188 | *.publishproj 189 | 190 | # Microsoft Azure Web App publish settings. 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Backup files are not needed, 256 | # because we have git ;-) 257 | _UpgradeReport_Files/ 258 | Backup*/ 259 | UpgradeLog*.XML 260 | UpgradeLog*.htm 261 | ServiceFabricBackup/ 262 | *.rptproj.bak 263 | 264 | # SQL Server files 265 | *.mdf 266 | *.ldf 267 | *.ndf 268 | 269 | # Business Intelligence projects 270 | *.rdl.data 271 | *.bim.layout 272 | *.bim_*.settings 273 | *.rptproj.rsuser 274 | *- [Bb]ackup.rdl 275 | *- [Bb]ackup ([0-9]).rdl 276 | *- [Bb]ackup ([0-9][0-9]).rdl 277 | 278 | # Microsoft Fakes 279 | FakesAssemblies/ 280 | 281 | # GhostDoc plugin setting file 282 | *.GhostDoc.xml 283 | 284 | # Node.js Tools for Visual Studio 285 | .ntvs_analysis.dat 286 | node_modules/ 287 | 288 | # Visual Studio 6 build log 289 | *.plg 290 | 291 | # Visual Studio 6 workspace options file 292 | *.opt 293 | 294 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 295 | *.vbw 296 | 297 | # Visual Studio LightSwitch build output 298 | **/*.HTMLClient/GeneratedArtifacts 299 | **/*.DesktopClient/GeneratedArtifacts 300 | **/*.DesktopClient/ModelManifest.xml 301 | **/*.Server/GeneratedArtifacts 302 | **/*.Server/ModelManifest.xml 303 | _Pvt_Extensions 304 | 305 | # Paket dependency manager 306 | .paket/paket.exe 307 | paket-files/ 308 | 309 | # FAKE - F# Make 310 | .fake/ 311 | 312 | # CodeRush personal settings 313 | .cr/personal 314 | 315 | # Python Tools for Visual Studio (PTVS) 316 | __pycache__/ 317 | *.pyc 318 | 319 | # Cake - Uncomment if you are using it 320 | # tools/** 321 | # !tools/packages.config 322 | 323 | # Tabs Studio 324 | *.tss 325 | 326 | # Telerik's JustMock configuration file 327 | *.jmconfig 328 | 329 | # BizTalk build output 330 | *.btp.cs 331 | *.btm.cs 332 | *.odx.cs 333 | *.xsd.cs 334 | 335 | # OpenCover UI analysis results 336 | OpenCover/ 337 | 338 | # Azure Stream Analytics local run output 339 | ASALocalRun/ 340 | 341 | # MSBuild Binary and Structured Log 342 | *.binlog 343 | 344 | # NVidia Nsight GPU debugger configuration file 345 | *.nvuser 346 | 347 | # MFractors (Xamarin productivity tool) working folder 348 | .mfractor/ 349 | 350 | # Local History for Visual Studio 351 | .localhistory/ 352 | 353 | # BeatPulse healthcheck temp database 354 | healthchecksdb 355 | 356 | # Backup folder for Package Reference Convert tool in Visual Studio 2017 357 | MigrationBackup/ 358 | 359 | # Ionide (cross platform F# VS Code tools) working folder 360 | .ionide/ 361 | 362 | # Fody - auto-generated XML schema 363 | FodyWeavers.xsd -------------------------------------------------------------------------------- /ForLoopTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | 5 | namespace csharp_benchmarks 6 | { 7 | [SimpleJob(RunStrategy.Throughput, launchCount: 10)] 8 | public class ForLoopTest 9 | { 10 | [Params(1000)] 11 | public int ItemsCount; 12 | 13 | private Appointment[] appointmentsArray; 14 | 15 | [GlobalSetup] 16 | public void Init() 17 | { 18 | appointmentsArray = new Appointment[ItemsCount]; 19 | 20 | for (int i = 0; i < ItemsCount; i++) 21 | appointmentsArray[i] = new Appointment() { ServiceName = Guid.NewGuid().ToString() }; ; 22 | } 23 | 24 | [Benchmark] 25 | public void For() 26 | { 27 | for (int i = 0; i < appointmentsArray.Length; i++) 28 | { 29 | Console.WriteLine(appointmentsArray[i].ServiceName); 30 | } 31 | } 32 | 33 | [Benchmark] 34 | public void ForLengthOut() 35 | { 36 | int length = appointmentsArray.Length; 37 | for (int i = 0; i < length ; i++) 38 | { 39 | Console.WriteLine(appointmentsArray[i].ServiceName); 40 | } 41 | } 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /ForeachVsForTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | using System.Collections.Generic; 5 | 6 | namespace csharp_benchmarks 7 | { 8 | [SimpleJob(RunStrategy.Throughput, launchCount: 5)] 9 | public class ForeachVsForTest 10 | { 11 | [Params(1000, 10000)] 12 | public int ItemsCount; 13 | 14 | private Appointment[] appointmentsArray; 15 | private List appointmentsList; 16 | 17 | [GlobalSetup] 18 | public void Init() 19 | { 20 | appointmentsArray = new Appointment[ItemsCount]; 21 | appointmentsList = new(); 22 | 23 | for (int i = 0; i < ItemsCount; i++) 24 | { 25 | var appointment = new Appointment() { ServiceName = Guid.NewGuid().ToString() }; 26 | appointmentsArray[i] = appointment; 27 | appointmentsList.Add(appointment); 28 | } 29 | } 30 | 31 | [Benchmark] 32 | public void ForOnArray() 33 | { 34 | for (int i = 0; i < appointmentsArray.Length; i++) 35 | { 36 | //appointmentsArray[i] = new Appointment(); //creation of a new object / change of references / etc. 37 | Console.WriteLine(appointmentsArray[i].ServiceName); 38 | } 39 | } 40 | 41 | [Benchmark] 42 | public void ForeachOnArray() 43 | { 44 | foreach (var appointment in appointmentsArray) 45 | { 46 | Console.WriteLine(appointment.ServiceName); 47 | } 48 | } 49 | 50 | [Benchmark] 51 | public void ForOnList() 52 | { 53 | for (int i = 0; i < appointmentsList.Count; i++) 54 | { 55 | Console.WriteLine(appointmentsList[i].ServiceName); 56 | } 57 | } 58 | 59 | [Benchmark] 60 | public void ForeachOnList() 61 | { 62 | foreach (var appointment in appointmentsList) 63 | { 64 | Console.WriteLine(appointment.ServiceName); 65 | } 66 | } 67 | 68 | } 69 | 70 | class Appointment 71 | { 72 | public string ServiceName { get; set; } 73 | } 74 | } 75 | -------------------------------------------------------------------------------- /GotoVsSwitch.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | 5 | namespace csharp_benchmarks 6 | { 7 | [SimpleJob(RunStrategy.Throughput, launchCount: 5)] 8 | public class GotoVsSwitch 9 | { 10 | 11 | private int _a; 12 | private int[,,] _magicNumbers; 13 | private int _compare = 9; 14 | [GlobalSetup] 15 | public void Init() 16 | { 17 | Random rnd = new Random(); 18 | _a = rnd.Next(1, 3); 19 | 20 | _magicNumbers = new int[2, 2, 2] {{ { 1, 2 }, { 3, 4 } }, { { 7, 7 }, { 9, 7 } } }; 21 | } 22 | 23 | [Benchmark] 24 | public void Switch() 25 | { 26 | switch (_a) { 27 | case 1: 28 | Console.WriteLine("1"); 29 | break; 30 | case 2: 31 | Console.WriteLine("2"); 32 | break; 33 | default: 34 | Console.WriteLine("n/n"); 35 | break; 36 | } 37 | } 38 | 39 | [Benchmark] 40 | public void Goto() 41 | { 42 | if (_a == 1) 43 | { 44 | goto One; 45 | } 46 | else if (_a == 2) 47 | { 48 | goto Two; 49 | } 50 | else 51 | { 52 | goto Nn; 53 | } 54 | One: Console.WriteLine("One"); 55 | Two: Console.WriteLine("Two"); 56 | Nn: Console.WriteLine("n/n"); 57 | 58 | } 59 | 60 | [Benchmark] 61 | public void BreakUsingGoto() 62 | { 63 | for (int i = 0; i < _magicNumbers.GetLength(0); ++i) 64 | { 65 | for (int j = 0; j < _magicNumbers.GetLength(1); ++j) 66 | { 67 | for (int k = 0; k < _magicNumbers.GetLength(2); ++k) 68 | { 69 | if (_magicNumbers[i, j, k] == _compare) goto Exit; 70 | } 71 | } 72 | } 73 | Exit: Console.WriteLine("exit"); 74 | } 75 | 76 | [Benchmark] 77 | public void BreakUsingBreak() 78 | { 79 | bool exit = false; 80 | 81 | for (int i = 0; i < _magicNumbers.GetLength(0); ++i) 82 | { 83 | for (int j = 0; j < _magicNumbers.GetLength(1); ++j) 84 | { 85 | for (int k = 0; k < _magicNumbers.GetLength(2); ++k) 86 | { 87 | if (_magicNumbers[i, j, k] == _compare) exit = true; 88 | } 89 | if (exit) 90 | break; 91 | } 92 | if (exit) 93 | break; 94 | } 95 | Console.WriteLine("exit"); 96 | } 97 | } 98 | } -------------------------------------------------------------------------------- /IntParseVsTryParseTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using System; 3 | 4 | namespace csharp_benchmarks 5 | { 6 | public class IntParseVsTryParseTest 7 | { 8 | [Params(1000000)] 9 | public int ItemsCount; 10 | 11 | private string[] stringToParse; 12 | 13 | [GlobalSetup] 14 | public void Init() 15 | { 16 | stringToParse = new string[ItemsCount]; 17 | Random rand = new Random(); 18 | for (int i = 0; i < ItemsCount; i++) 19 | stringToParse[i]= rand.Next(0, 100).ToString(); 20 | } 21 | 22 | [Benchmark] 23 | public void ParseTest() 24 | { 25 | for (int i = 0; i < ItemsCount; i++) 26 | int.Parse(stringToParse[i]); 27 | } 28 | 29 | [Benchmark] 30 | public void TryParseTest() 31 | { 32 | for (int i = 0; i < ItemsCount; i++) 33 | int.TryParse(stringToParse[i], out _); 34 | } 35 | 36 | [Benchmark] 37 | public void ConvertTest() 38 | { 39 | for (int i = 0; i < ItemsCount; i++) 40 | Convert.ToInt32(stringToParse[i]); 41 | } 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /LinqWhereAndTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | using System.Collections.Generic; 5 | using System.Linq; 6 | 7 | namespace csharp_benchmarks 8 | { 9 | public class LinqWhereAndTest 10 | { 11 | [Params(10)] 12 | public int ItemsCount; 13 | 14 | private List appointments; 15 | private DateTime now; 16 | 17 | [GlobalSetup] 18 | public void Init() 19 | { 20 | now = DateTime.Now; 21 | appointments = new List(); 22 | for (int i = 0; i < ItemsCount; i++) 23 | { 24 | appointments.Add(new() { IsCanceled = false, CancalationDate=now}); 25 | } 26 | } 27 | 28 | [Benchmark] 29 | public void MultipleWhere() 30 | { 31 | _ = from appointment in appointments where appointment.IsCanceled == false && appointment.CancalationDate < DateTime.Now select appointment; 32 | } 33 | 34 | [Benchmark] 35 | public void WhereAndOperator() 36 | { 37 | _ = from appointment in appointments where appointment.IsCanceled == false where appointment.CancalationDate < DateTime.Now select appointment; 38 | } 39 | 40 | [Benchmark] 41 | public void MultipleWhereEmptyList() 42 | { 43 | _ = from appointment in appointments where appointment.IsCanceled == true && appointment.CancalationDate < DateTime.Now select appointment; 44 | } 45 | 46 | [Benchmark] 47 | public void WhereAndOperatorEmptyList() 48 | { 49 | _ = from appointment in appointments where appointment.IsCanceled == true where appointment.CancalationDate < DateTime.Now select appointment; 50 | } 51 | 52 | 53 | class Appointment 54 | { 55 | public bool IsCanceled { get; set; } 56 | public DateTime CancalationDate { get; set; } 57 | } 58 | } 59 | } 60 | -------------------------------------------------------------------------------- /NestedForeachVsSelectManyTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | using System.Linq; 5 | 6 | namespace csharp_benchmarks 7 | { 8 | [SimpleJob(RunStrategy.Throughput, launchCount: 1)] 9 | public class NestedForeachVsSelectMany 10 | { 11 | [Params(10000)] 12 | public int ItemsCount; 13 | 14 | private Appointment[] appointmentsArray; 15 | private AppointmentEvent[] appointmentEventsArray; 16 | 17 | [GlobalSetup] 18 | public void Init() 19 | { 20 | appointmentsArray = new Appointment[ItemsCount]; 21 | appointmentEventsArray = new AppointmentEvent[ItemsCount]; 22 | 23 | for (int i = 0; i < ItemsCount; i++) 24 | { 25 | var appointment = new Appointment() { ServiceName = Guid.NewGuid().ToString() }; 26 | var appointmentEvent = new AppointmentEvent() { Name = Guid.NewGuid().ToString() }; 27 | appointmentsArray[i] = appointment; 28 | appointmentEventsArray[i] = appointmentEvent; 29 | } 30 | } 31 | 32 | [Benchmark] 33 | public void NestedForachOnArray() 34 | { 35 | foreach(var appointment in appointmentsArray) 36 | { 37 | foreach (var appointmentEvent in appointmentEventsArray) 38 | { 39 | Console.WriteLine(appointment.ServiceName + appointmentEvent.Name); 40 | } 41 | } 42 | } 43 | 44 | [Benchmark] 45 | public void SelectMany() 46 | { 47 | var flat = appointmentsArray.SelectMany(b => appointmentEventsArray, (a, b) => (a.ServiceName + b.Name)); 48 | 49 | foreach (var item in flat) 50 | { 51 | Console.WriteLine(item); 52 | } 53 | } 54 | 55 | 56 | [Benchmark] 57 | public void Zip() 58 | { 59 | foreach (var flatItem in appointmentsArray.Zip(appointmentEventsArray, (a,b)=> a.ServiceName + b.Name)) 60 | { 61 | Console.WriteLine(flatItem); 62 | } 63 | } 64 | 65 | } 66 | 67 | class AppointmentEvent 68 | { 69 | public string Name { get; set; } 70 | } 71 | } 72 | -------------------------------------------------------------------------------- /NullVsEmptyCollection.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | using System.Collections.Generic; 5 | using System.Linq; 6 | 7 | namespace csharp_benchmarks 8 | { 9 | [SimpleJob(RunStrategy.Throughput, launchCount: 10)] 10 | public class NullVsEmptyCollection 11 | { 12 | 13 | private A _a; 14 | 15 | [GlobalSetup] 16 | public void Init() 17 | { 18 | _a = new(); 19 | } 20 | 21 | [Benchmark] 22 | public void ReturnNull() 23 | { 24 | _a.ReturnNull(); 25 | } 26 | 27 | [Benchmark] 28 | public void ReturnEmptyList() 29 | { 30 | _a.ReturnEmptyList(); 31 | } 32 | 33 | [Benchmark] 34 | public void ReturnEmptyEnumerable() 35 | { 36 | _a.ReturnEmptyEnumerable(); 37 | } 38 | 39 | [Benchmark] 40 | public void ReturnYieldBreak() 41 | { 42 | _a.ReturnYieldBreak(); 43 | } 44 | } 45 | 46 | 47 | 48 | class A 49 | { 50 | public List ReturnNull() => null; 51 | 52 | public IList ReturnEmptyList() => new List(); 53 | 54 | public IEnumerable ReturnEmptyEnumerable() => Enumerable.Empty(); 55 | 56 | 57 | public IEnumerable ReturnYieldBreak() 58 | { 59 | yield break; 60 | } 61 | } 62 | 63 | class B 64 | { 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /Program.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Running; 2 | using csharp_benchmarks; 3 | 4 | 5 | _ = BenchmarkRunner.Run(); 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # csharp-benchmarks 2 | This repository contains c# performance tests. 3 | 4 | Contains: 5 | 1. For tests (hoisting length) 6 | 2. For vs Foreach tests 7 | 3. Goto vs Switch tests 8 | 4. Null vs Empty collection 9 | 5. Replacing string tests 10 | 6. Spit test 11 | 7.int.Parse vs int.TryParse tests 12 | 8. Nested foreach vs SelectMany 13 | 9. multiple LINQ where vs where + and operator 14 | -------------------------------------------------------------------------------- /SplitTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | 5 | namespace csharp_benchmarks 6 | { 7 | public class SplitTest 8 | { 9 | [Params(100000)] 10 | public int ItemsCount; 11 | 12 | private string longStringToSplit; 13 | 14 | [GlobalSetup] 15 | public void Init() 16 | { 17 | for (int i = 0; i < ItemsCount; i++) 18 | longStringToSplit += $"{Guid.NewGuid()};"; 19 | } 20 | 21 | [Benchmark] 22 | public void Split() 23 | { 24 | _ = longStringToSplit.Split(";"); 25 | } 26 | 27 | [Benchmark] 28 | public void SplitChar() 29 | { 30 | _ = longStringToSplit.Split(new char[] { ';' }); 31 | } 32 | 33 | [Benchmark] 34 | public void SplitCharNew() 35 | { 36 | _ = longStringToSplit.Split(';', StringSplitOptions.None); 37 | } 38 | } 39 | } 40 | -------------------------------------------------------------------------------- /StringReplaceTest.cs: -------------------------------------------------------------------------------- 1 | using BenchmarkDotNet.Attributes; 2 | using BenchmarkDotNet.Engines; 3 | using System; 4 | using System.Collections.Generic; 5 | using System.Text; 6 | using System.Text.RegularExpressions; 7 | 8 | namespace csharp_benchmarks 9 | { 10 | //[SimpleJob(RunStrategy.Throughput, launchCount: 1)] 11 | public class StringReplaceTest 12 | { 13 | const string shortString = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit "; 14 | 15 | //belive me is ~25k characters 16 | const string longString = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin orci massa, gravida at felis ac, hendrerit efficitur est. Phasellus bibendum felis venenatis massa bibendum ornare. Quisque et eros cursus odio ultrices dictum. Morbi fringilla tortor et magna auctor, et volutpat ipsum fermentum. Praesent sed nibh ipsum. Praesent ut neque quis metus posuere semper non quis est. Nam rhoncus sem et magna pellentesque auctor. Proin dui elit, aliquet in lorem non, gravida sagittis quam. Nam ac dictum tellus. Nunc quis nulla leo. Aliquam interdum metus tincidunt, ultrices lacus eu, hendrerit sapien. Etiam vestibulum justo et urna ullamcorper laoreet. Nunc at augue ut ex interdum finibus. Phasellus sit amet mollis lacus, a consectetur nisi. Sed et nunc quam.Suspendisse rhoncus nec ante in tincidunt.Quisque a lacinia dolor.Proin auctor tortor purus, vitae facilisis ex vehicula ut.Aliquam sed viverra elit, at iaculis mauris.Sed vitae hendrerit ipsum. Mauris consequat, lorem vitae eleifend tempor, tellus dui tincidunt nulla, eget efficitur justo ipsum non enim. Aenean pulvinar convallis sem, ut ullamcorper ipsum cursus eget.Cras et rhoncus leo. Nulla porta sem nec ipsum dignissim eleifend.Nam semper consequat lorem, eget auctor nunc commodo ac.Nulla sit amet erat at tortor rutrum ultricies et ut ex.Sed id sagittis libero. Mauris aliquet leo vitae massa auctor, pretium consequat erat sodales.Nunc dapibus porta nulla, vitae scelerisque enim fermentum sed.Nulla facilisi. Pellentesque dignissim commodo blandit. Etiam eu purus a enim porttitor tristique sit amet sit amet arcu. Phasellus at mattis felis, molestie placerat sem.Mauris cursus quis eros ac ultrices. Nulla eu quam facilisis, dapibus nibh non, ultrices magna. Curabitur eros magna, venenatis non augue vel, sollicitudin porttitor ipsum.Nunc sit amet lectus nec nulla fringilla placerat. Sed nec vulputate sem. Suspendisse at diam eu urna ultricies egestas et eu risus. Duis ultricies erat a venenatis mollis. Fusce sagittis metus a est laoreet, ut vulputate diam porta. Donec pharetra ante nec ullamcorper tempus. Donec ultrices, diam ut ullamcorper vehicula, lectus turpis sodales est, in rutrum ligula dolor a nisl.Etiam eget lacinia nisi.Quisque sed eros lorem. Proin pellentesque erat a elit mattis volutpat.Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.Vestibulum vitae rhoncus ante, sed sagittis nibh.Aliquam aliquam sem elit, non porttitor risus venenatis ac.Maecenas ut luctus tortor. Curabitur leo nulla, imperdiet eget mattis auctor, mollis non dui.Quisque condimentum dapibus leo, in commodo lectus gravida quis. Curabitur tempus, est dapibus venenatis pretium, ante massa venenatis enim, id tincidunt mauris ante ut eros. Aenean mattis consectetur leo non sollicitudin. Donec maximus semper risus id auctor. Vivamus eu sapien viverra, vestibulum orci ac, gravida lectus. Pellentesque finibus arcu vitae turpis rhoncus, sit amet sollicitudin sem molestie.Proin eu massa in arcu mattis viverra.Phasellus tempor volutpat sem. Sed sed eros consectetur, congue est et, commodo leo.Cras cursus justo augue, sed ornare dolor sollicitudin quis.Vestibulum interdum efficitur dolor, eget maximus justo aliquet at.Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.Morbi id maximus lorem, ac ultricies arcu.Morbi eu scelerisque ante. Sed accumsan metus eget consequat venenatis. Morbi facilisis eu nulla feugiat luctus. Quisque aliquam laoreet ornare. Mauris quis felis in massa laoreet consectetur nec in purus.Ut nec dapibus libero. Aliquam fringilla lorem mattis purus pharetra porttitor.Pellentesque posuere suscipit libero, eget dignissim orci tristique a.Vestibulum dignissim ac felis quis condimentum. Morbi elementum cursus consectetur. Vivamus elementum, erat et porttitor sagittis, nisi erat interdum lacus, eu luctus elit velit at ligula."; 17 | 18 | [Benchmark] 19 | public string StringReplace() => (shortString.Replace("massa", "replaced massa").ToString()); 20 | 21 | [Benchmark] 22 | public string StringBuilderReplace() => (new StringBuilder(shortString).Replace("massa", "replaced massa").ToString()); 23 | 24 | [Benchmark] 25 | public string StringRegexReplace() => (Regex.Replace(shortString, "massa", "replaced massa").ToString()); 26 | 27 | [Benchmark] 28 | public string LongStringReplace() => (longString.Replace("massa", "replaced massa").ToString()); 29 | 30 | [Benchmark] 31 | public string LongStringBuilderReplace() => (new StringBuilder(longString).Replace("massa", "replaced massa").ToString()); 32 | 33 | [Benchmark] 34 | public string LongStringRegexReplace() => (Regex.Replace(longString, "massa", "replaced massa").ToString()); 35 | 36 | [Benchmark] 37 | public string LongStringRegexCompiledReplace() => (Regex.Replace(longString, "massa", "replaced massa", RegexOptions.Compiled | RegexOptions.IgnoreCase).ToString()); 38 | 39 | [Benchmark] 40 | public string StringMultipleReplace() => (shortString.Replace("massa", "replaced massa").Replace("orci", "replaced orci").ToString()); 41 | 42 | [Benchmark] 43 | public string StringBuilderMultipleReplace() => (new StringBuilder(shortString).Replace("massa", "replaced massa").Replace("orci", "replaced orci").ToString()); 44 | 45 | [Benchmark] 46 | public string StringRegexMultipleReplace() 47 | { 48 | IDictionary replacement = new Dictionary() 49 | { 50 | {"massa","replaced massa"}, 51 | {"orci","replaced orci"} 52 | }; 53 | return new Regex(String.Join("|", replacement.Keys)).Replace(shortString, m => replacement[m.Value]); 54 | } 55 | 56 | [Benchmark] 57 | public string LongStringMultipleReplace() => (longString.Replace("massa", "replaced massa").Replace("orci", "replaced orci").ToString()); 58 | 59 | [Benchmark] 60 | public string LongStringBuilderMultipleReplace() => (new StringBuilder(longString).Replace("massa", "replaced massa").Replace("orci", "replaced orci").ToString()); 61 | 62 | [Benchmark] 63 | public string LongStringRegexMultipleReplace() 64 | { 65 | IDictionary replacement = new Dictionary() 66 | { 67 | {"massa","replaced massa"}, 68 | {"orci","replaced orci"} 69 | }; 70 | return new Regex(String.Join("|", replacement.Keys)).Replace(longString, m => replacement[m.Value]); 71 | } 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /csharp-benchmarks.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | net5.0 6 | csharp_benchmarks 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /csharp-benchmarks.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.0.31919.166 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "csharp-benchmarks", "csharp-benchmarks.csproj", "{56105A62-556F-4219-B325-E4BC1BA56DD4}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {56105A62-556F-4219-B325-E4BC1BA56DD4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {56105A62-556F-4219-B325-E4BC1BA56DD4}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {56105A62-556F-4219-B325-E4BC1BA56DD4}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {56105A62-556F-4219-B325-E4BC1BA56DD4}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {903C2486-8BDB-41E7-9D77-5A3E6EF44199} 24 | EndGlobalSection 25 | EndGlobal 26 | --------------------------------------------------------------------------------