### Asynchronous programming in .NET by Gerardo Lijs Twitter @GerardoLijs April 2019 ## Content What is Asynchronous Programming CPU-bound vs IO-bound Obsolete patterns Tasks and async/await Practical interfaces (WPF, WinForms, etc) • Scalability and performance in web applications ## CPU-bound operations ## Synchronous method int GetPrimesCount(int start, int count) { return ParallelEnumerable Count(n => Enumerable.Range(2, (int)Math.Sqrt(n) - 1).All(i => n % i > 0)); } ## Asynchronous method Task GetPrimesCountAsync(int start, int count) { return Task.Run(() =>

## Intro to Prometheus With a dash of operations & observability ## Richard Hartmann & Frederic Branczyk @TwitchiH & @fredbrancz 2018-12-12 ## Who are we? ## Richard "RichiH" Hartmann

## Monadic Operations in Modern C++: A Practical Approach ## +24 ## Monadic Operations in Modern C++: A Practical Approach ## V ITALY FANASKOV ## About me • Vitaly Fanaskov • Senior software engineer jpg) ## Agenda - Briefly about expected and optional • Common use cases of expected Monadic operations in software development • Tips and tricks ## I n this talk • Less theory C++ only • Practical new widget {}: {}.", widgetBox.value(), error); } } ## How do we handle this? ## Monadic operations: and then if (const auto widgetBox = getNewWidget(); widgetBox.has_value()) { const auto widget

Title: Pipeline architectures in C++: overloaded pipe operator | std::expected and its monadic operations ## Brief overview: Functional programming in C++ is gaining importance and is attracting programmers operator will be presented, as well as I'll explain std::expected and especially its monadic operations that can be tricky in practice. All these together present novel and efficient programming paradigms What's more, std::expected itself allows you to build pipelines – this time using its monadic operations. In this poseter I will explain details how to build your own pipeline architecture in modern C++

## +23 ## Taro: Task graph-based Asynchronous Programming Using C++ Coroutine DIAN-LUN LIN 20 23 October 01 - 06 ## Agenda • Understand the motivation behind Taro • Learn to use the Taro C++ programming Conclusion ## Synchronous/Asynchronous Mechanisms Synchronous Boil the water  Multitasking! Asynchronous Wait  -> taro::Coro { custom.suspend_callback([&]) { // custom accelerator operations } }); ## Taro’s Programming Model - Extendibility #include

CompletionToken& token); ## Events Complex asynchronous operations contain many parts Encapsulating increasing complexity creates a shared framework Shared async_wait(CompletionToken&& token); }; ## I njecting Asynchronous Operations If an asynchronous operation completes immediately (that is, within the thread of execution calling Enforcing would leave performance on the table Can waive this requirement for injected asynchronous operations enum class query_driver_reason { error, cancel, complete, fail, abort }; struct query_driver_statistics

Tornado [https://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking __name__ == "__main__": asyncio.run(main()) This example does not use any of Tornado’s asynchronous features; for that see this simple chat room [https://github.com/tornadoweb/tornado/tree/stable/demos/chat] with only one thread per process. See the User's guide for more on Tornado's approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a

to access elements of the std::mdspan are blocking the arms need to operate asynchronously ## asynchronous dual arm control template struct bin_checker_t { using element_type private: Arbiter* checker_; }; github.com/griswaldbrooks/spanny2 ## asynchronous dual arm control template struct bin_checker_async_t { using element_type Arbiter* checker_; }; github.com/griswaldbrooks/spanny2 ## asynchronous dual arm control struct arbiter_dual_async { using result_type = std::expected

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Tornado [https://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking listen(8888) tornado.ioloop.IOLoop.current().start() This example does not use any of Tornado’s asynchronous features; for that see this simple chat room [https://github.com/tornadoweb/tornado/tree/stable/demos/chat] with only one thread per process. See the User's guide for more on Tornado's approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a

2021  ## Day 2 operations • Requirements Day 1 • Lights-on End • Architecture • Installation • Maintenance • Delete Clean up • Configuration • Optimize Day 0 Day 2 https://dzone.com/articles/defining-day-2-operations #IstioCon ## What does it mean for our users? • Project maturity ☐ Move “slowly and fix things” Desire predictability • Longer support windows • Skip releases for upgrades Focus areas for ‘Day 2 Operations’  ## Stability