C# - Difficulty with Asynchronous File I/O and Memory Leak in .NET 6 Application
I'm testing a new approach and I'm facing a memory leak issue in my C# .NET 6 application that uses asynchronous file I/O operations. My application reads large text files, processes the content, and writes the output back to the disk. Despite using `async` and `await`, the application frequently runs out of memory, especially when processing larger files. I've implemented the file processing like this: ```csharp public async Task ProcessFileAsync(string filePath) { using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read, bufferSize: 4096, useAsync: true)) { using (var reader = new StreamReader(stream)) { string line; while ((line = await reader.ReadLineAsync()) != null) { // Simulate some processing logic await ProcessLineAsync(line); } } } } private async Task ProcessLineAsync(string line) { // Simulate async processing (e.g., parsing, transforming data) await Task.Delay(10); } ``` I've also set the file access to `FileShare.Read` to allow other processes to read the file simultaneously. When I test with smaller files, everything works fine, but with larger files (10 MB or more), I start to notice significant memory usage in the Task Manager. I've tried forcing garbage collection with `GC.Collect()`, but it doesn't seem to help. Additionally, I'm using a `ConcurrentBag<string>` to store processed lines, but I'm worried I'm not disposing of it correctly. Could this be causing the memory leak? Is there a better way to handle file I/O operations or process large files in an async manner without running into memory issues? Any advice or insights would be greatly appreciated. I'm coming from a different tech stack and learning C#. Any pointers in the right direction?