advanced patterns with Asynchronous File I/O in C# on .NET 7
I'm performance testing and I'm confused about I'm sure I'm missing something obvious here, but I'm working with a puzzling scenario when using asynchronous file I/O operations in C# on .NET 7. I implemented a method to read a large text file asynchronously, but I'm observing a behavior where the result sometimes returns an empty string, even though the file definitely has content. Here’s the method I’m using: ```csharp public async Task<string> ReadFileAsync(string filePath) { using (var streamReader = new StreamReader(filePath)) { return await streamReader.ReadToEndAsync(); } } ``` I call this method from an async context like this: ```csharp public async Task ProcessFile() { string content = await ReadFileAsync("path/to/largefile.txt"); Console.WriteLine(content.Length); } ``` The scenario arises sporadically: sometimes `content` prints as `0` when I log its length. I have confirmed that the file path is correct and that the file exists and has content. I also checked permissions and ensured that the application has access to the file. I tried to add a small delay before reading the file, thinking there might be an scenario with file locking, but that did not change anything. Has anyone encountered similar behavior with asynchronous file reads in .NET 7? Are there any best practices or common pitfalls I might be missing? One thing I noticed is that if I call the method in a tight loop with multiple simultaneous requests, the question seems to get worse, which makes me wonder if it's related to how the asynchronous calls are managed. I would appreciate any insights or suggestions on how to resolve this scenario or diagnose what's going wrong. This is happening in both development and production on Windows 11. Any ideas how to fix this? I'd love to hear your thoughts on this. This issue appeared after updating to C# 3.10. Thanks in advance!