Use both ends of the pipe in parallel#5
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By splitting the pipe into the writing end and reading end it seems to be able to slightly boost performance. On my system it benchmarks as roughly ~10% faster to have the file being parsed while it is loading in. ``` ini BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19042.985 (20H2/October2020Update) AMD Ryzen 7 5800X, 1 CPU, 16 logical and 8 physical cores .NET SDK=5.0.203 [Host] : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT DefaultJob : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT ``` | Method | Mean | Error | StdDev | Rank | Gen 0 | Gen 1 | Gen 2 | Allocated | |------------ |----------:|---------:|---------:|-----:|----------:|----------:|----------:|----------:| | FullPipe | 51.77 ms | 0.363 ms | 0.303 ms | 1 | 1000.0000 | 500.0000 | - | 17 MB | | PipeLines | 56.97 ms | 0.400 ms | 0.355 ms | 2 | 1000.0000 | 444.4444 | - | 17 MB | | CsvHelper | 136.83 ms | 1.827 ms | 1.709 ms | 3 | 5250.0000 | 2250.0000 | 1500.0000 | 77 MB | | AsyncStream | 153.04 ms | 2.995 ms | 4.483 ms | 4 | 4250.0000 | 2500.0000 | 750.0000 | 64 MB |
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By splitting the pipe into the writing end and reading end it
seems to be able to slightly boost performance. On my system
it benchmarks as roughly ~10% faster to have the file being
parsed while it is loading in.