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Benchmark showing performance increase using FromEvent with conversion over FromEventPattern, using BenchmarkDotNet library
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| [BenchmarkTask(platform: BenchmarkPlatform.X86, jitVersion: BenchmarkJitVersion.LegacyJit)] | |
| [BenchmarkTask(platform: BenchmarkPlatform.X64, jitVersion: BenchmarkJitVersion.LegacyJit)] | |
| [BenchmarkTask(platform: BenchmarkPlatform.X64, jitVersion: BenchmarkJitVersion.RyuJit)] | |
| public class FromEventBenchmark | |
| { | |
| readonly Control control = new Control(); | |
| [Benchmark] | |
| public void FromEventPattern() | |
| { | |
| Observable.FromEventPattern<EventHandler, EventArgs>(h => control.SizeChanged += h, h => control.SizeChanged -= h).Select(p => p.EventArgs) | |
| .Publish().Connect().Dispose(); | |
| } | |
| [Benchmark] | |
| public void FromEvent() | |
| { | |
| Observable.FromEvent<EventHandler, EventArgs>(h => (sender, ea) => h(ea), h => control.SizeChanged += h, h => control.SizeChanged -= h) | |
| .Publish().Connect().Dispose(); | |
| } | |
| } |
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| // ***** Competition: Finish ***** | |
| // BenchmarkDotNet=v0.7.7.0 | |
| // OS=Microsoft Windows NT 6.2.9200.0 | |
| // Processor=Intel(R) Core(TM) i5-4300U CPU @ 1.90GHz, ProcessorCount=4 | |
| // Host CLR=MS.NET 4.0.30319.42000, Arch=32-bit | |
| Common: Type=FromEventBenchmark Mode=Throughput .NET=HostFramework | |
| Method | Platform | Jit | AvrTime | StdDev | op/s | | |
| ----------------- |--------- |---------- |--------- |---------- |---------- | | |
| FromEvent | X64 | LegacyJit | 3.71 us | 109.37 ns | 269718.74 | | |
| FromEventPattern | X64 | LegacyJit | 12.63 us | 814.62 ns | 79178.01 | | |
| FromEvent | X64 | RyuJit | 6.05 us | 379.20 ns | 165236.62 | | |
| FromEventPattern | X64 | RyuJit | 18.53 us | 1.90 us | 53964.84 | | |
| FromEvent | X86 | LegacyJit | 5.29 us | 54.17 ns | 189204.87 | | |
| FromEventPattern | X86 | LegacyJit | 15.15 us | 531.08 ns | 66021.92 | | |
| // ***** Competition: End ***** | |
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