Why Virtual Threads Are a Better Abstraction Than Async/Await for Concurrency
By
Armin Ronacher
Summary
The author argues that async/await is a fundamentally flawed abstraction for most programming languages, advocating instead for virtual threads as a superior concurrency model. Drawing from years of experience with async/await-based systems, the author contends that these systems fail to handle back pressure well and introduce unnecessary complexity. The piece reexamines and synthesizes arguments from previous thinkers in the field, ultimately concluding that thread-based concurrency (particularly virtual threads) offers a cleaner, more intuitive approach to managing concurrent operations in modern software development.
Source
Twitter / XWhy Virtual Threads Are a Better Abstraction Than Async/Await for Concurrencylucumr.pocoo.orgKey quotes
· 3 pulledI'm now convinced that async/await is, in fact, a bad abstraction for most languages, and we should be aiming for something better instead and that I believe to be thread.
It's been a few years since I wrote about my challenges with async/await-based systems and how they just seem to not support back pressure well.
In this post, I'm also going to rehash many arguments from very clever people that came before
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