Simplify File.WriteAllTextAsync #55644
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Avoid the unnecessary ArrayPool usage and extra layer of buffering.
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Tagging subscribers to this area: @dotnet/area-system-io Issue DetailsAvoid the unnecessary ArrayPool usage and extra layer of buffering. The code ends up being much simpler, and also a bit faster.
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;
[MemoryDiagnoser]
public class Program
{
public static void Main(string[] args) => BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(args);
private static string s_contents = string.Concat(Enumerable.Range(0, 100_000).Select(i => (char)('a' + (i % 26))));
private static string s_path = Path.GetRandomFileName();
private static CancellationTokenSource s_cts = new();
[Benchmark]
public Task WriteAllTextAsync() => File.WriteAllTextAsync(s_path, s_contents, s_cts.Token);
}
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Avoid the unnecessary ArrayPool usage and extra layer of buffering. The code ends up being much simpler, and also a bit faster.