CoreCLR VS ASP.NET Core

Yes, that is true. I'm not sure about JVM implementation details but the reason the comment says "virtual and interface" calls is to outline the difference. Virtual calls in .NET are sufficiently close[0] to virtual calls in C++. Interface calls, however, are coded differently[1].

Also you are correct - virtual calls are not terribly expensive, but they encroach on ever limited* CPU resources like indirect jump and load predictors and, as noted in parent comments, block inlining, which is highly undesirable for small and frequently called methods, particularly when they are in a loop.

* through great effort of our industry to take back whatever performance wins each generation brings with even more abstractions that fail to improve our productivity

[0] https://github.com/dotnet/coreclr/blob/4895a06c/src/vm/amd64...

[1] https://github.com/dotnet/runtime/blob/main/docs/design/core... (mind you, the text was initially written 18 ago, wow)

Sort of, some topic are not relevant anymore, consider this - https://github.com/dotnet/coreclr/tree/master/Documentation/botr

Fairly advanced stuff but the Book Of The Runtime (BOTR) it's a invaluable resource

After that you can check out the The Book of the Runtime, which is the CoreCLR version of the previous book.

Technically the restrictions already exist, just as a part of the development experience.

- .NET Hot Reload is only implemented on Windows. It requires support in the .NET runtime, which is technically possible to implement, but the team has not gotten around to implementing it for years. This doesn't have to do with the issue around MS removing the "dotnet watch" command, it's for the "Edit and Continue" feature in IDEs.[1][2]

- MS was considering deprecating Omnisharp, the open-source language server that implements C# support for VS Code, and replacing it with a closed-source version. Since the announcement, commits to omnisharp-vscode have dropped off significantly. The lack of Omnisharp would mean there would be no real open-source C# development environment for Linux anymore, since MonoDevelop was abandoned a few years ago. [3]

[1] https://youtrack.jetbrains.com/issue/RIDER-31366/EditContinu...

[2] https://github.com/dotnet/coreclr/issues/23685

[3] https://github.com/omnisharp/omnisharp-vscode/issues/5276

The next step is to realize everything you think you know about .NET is just an abstraction. Next step is to learn about what is going on behind all that syntax sugar and facades. 1st step might be https://github.com/dotnet/coreclr/tree/master/Documentation/botr then go down the rabbit hole and have fun

Book of the Runtime

As for the books, back in the days I really enjoyed reading “CLR via C#" by Jeffrey Richter which helped a lot to understand what is under the hood. Other from that, try The Book of the Runtime

> Just .GetAwaiter().GetResult() it.

That won’t work with various synchronization contexts, where doing this would cause a deadlock. There’s not much fun in trying to debug such issues.

And now that various libraries only provide async api, or worse an non-async version wrapping the async one with . GetAwaiter().GetResult(), you’ll be in for a treat updating your dependencies.

Async all the way is the answer, although various frameworks still don’t offer async hooks. Recently I ran into this for example trying to write an async validator in blazor, but that’s not possible and you have to work around it [1].

C# 5 introduced async/await almost 12 years ago. And we’re still not “async all the way”.

[1]: https://github.com/dotnet/aspnetcore/issues/40244

This approach to organizing middleware enhances code readability, maintainability, and reusability. By following this encapsulation pattern, you're adhering to best practices in ASP.NET Core development, ensuring your application remains well-organized and scalable.

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https://github.com/dotnet/aspnetcore/issues/50643

Even if you look at Microsoft’s by far most popular GitHub project, they’re still only half as big as SupaBase. If you believe “the SupaBase story”, SupaBase grew and became twice as large as Microsoft in 3 years. Below is their likes over time if you’re curious, together with a couple of additional “too good to be true” Silicon Valley projects.

https://github.com/dotnet/aspnetcore/issues/10117

To achieve these objectives, we will take inspiration from ASP.NET Core Identity's PasswordHasher class. It incorporates a concept of hash versioning, allowing only the number of iterations to be modified.

yes I watched several courses, may be aim not getting clearly. but i worked with asp.net which uses http call and firebase cloud function also which uses socket connection, for socket connection its makes sense to use observable bcoz there streams of data we can observe once the connection establish ,but for http it need to be call every time.