Concurrency
6 posts
From 800ms to 90ms: How Rust Rayon Saved My Multithreading Nightmare
A real Rust concurrency case study: replacing manual threads with Rayon’s work-stealing scheduler and getting a 9x speedup.
Build Your Own Mini Actor Framework: Run Concurrency Like a Coffee Shop
A hands-on guide to building a usable mini Actor framework in Rust from scratch: Actor, Addr, spawn, supervise, a simple registry, message passing, and HTTP interaction.
Rust unsafe isn’t a toy — it’s a blood oath: 6 YOLO mistakes that will blow up your code
Don’t treat unsafe like a get-out-of-jail-free card. With practical examples, this article dissects 6 common unsafe pitfalls: silencing the compiler with duct tape, dereferencing random raw pointers, violating borrow rules inside unsafe, reinventing wheels, abusing unsafe impl, and skipping Safety comments — helping you build the right risk mindset and usage patterns.
Stop treating tokio::spawn as a thread! I launched 1000 tasks in 2 seconds and the system stayed calm
tokio::spawn is not a thread but a lightweight task. Under Tokio’s scheduler you build highly concurrent services with sleep, timeout and select — 1000 tasks in 2 seconds with negligible overhead.
Rust Async State Machine, Unmasked: How Future, poll, and Waker Really Work
A practical deep dive into Rust async: why calling an async function doesn’t run it, how the compiler turns async into a state machine, and how executors drive tasks forward with poll and Waker. Understand the real mechanics behind async/await.
Why Rust Makes C++ Programmers Lose Sleep at Night: Lessons from My Migration Journey
A C++ developer with 5 years of experience shares real insights from switching to Rust. From memory safety to concurrency, these 10 features completely changed my perspective on systems programming