Debugging Memory Leak in .NET 6 Web API with Entity Framework Core and Scoped Services
I just started working with I tried several approaches but none seem to work. I'm sure I'm missing something obvious here, but I'm working with a memory leak scenario in my .NET 6 Web API application that uses Entity Framework Core. After running the application for an extended period or under heavy load, I've noticed an increasing memory usage which eventually leads to performance degradation and application crashes. I've implemented the DbContext with a scoped lifetime, but I'm still working with the scenario. I've confirmed that my `DbContext` is properly disposed of by using dependency injection. However, I still see instances of the context lingering in memory. Here’s a simplified version of my setup: ```csharp public class MyDbContext : DbContext { public MyDbContext(DbContextOptions<MyDbContext> options) : base(options) { } public DbSet<MyEntity> MyEntities { get; set; } } public class Startup { public void ConfigureServices(IServiceCollection services) { services.AddDbContext<MyDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"))); } } ``` In my controller, I'm using the context like this: ```csharp [ApiController] [Route("api/[controller]")] public class MyController : ControllerBase { private readonly MyDbContext _context; public MyController(MyDbContext context) { _context = context; } [HttpGet] public async Task<IActionResult> GetEntities() { var entities = await _context.MyEntities.ToListAsync(); return Ok(entities); } } } ``` I've also tried to explicitly call `Dispose()` on the context, but that doesn't seem to help. I've reviewed the memory usage via the Visual Studio Diagnostic Tools and I'm seeing a number of `MyEntity` instances being held in memory longer than expected, even after the requests have completed. Additionally, I've made sure that there are no circular references or long-lived static references to the context. Can anyone guide to pinpoint what might be causing these memory leaks or suggest any profiling tools that could assist in diagnosing the scenario better? Any ideas what could be causing this? I'm on macOS using the latest version of C#. Any examples would be super helpful. What am I doing wrong?