#concurrency

Java 21 shipped one of the biggest changes to Java concurrency in years: virtual threads (JEP 444)....

Don't be surprised if a project that compiled cleanly on Swift 6.2 starts throwing actor isolation...

Swift 6 Strict Concurrency: Production Migration Playbook Swift 6.0's strict concurrency...

A team I was pairing with had "fixed" a hot path by replacing a mutex-protected counter with four...

Introduction Go, with its simplicity and powerful concurrency model, has become a...

200 simultaneous attempts, 25 rounds, 0 duplicate callbacks: how we tested the at-most-once guard of a social media scheduler, and what it does not prove.

Debugging silent model unload failures when Ollama handles concurrent inference requests during model switching—and the mutex guard that fixed it.

A practical engineering guide to Distributed Locks with Redis: Redlock Algorithm, Clock Drift, and Fencing Tokens. Learn core mechanics, production tradeoffs, and best practices.

Not every concurrent database update needs the same locking strategy. Imagine two users trying to...

Why parallel agent branches collide on a shared manifest, why a clean green merge hides a dropped change, and the cheap ownership, rebase, and assertion habits that catch a clobbered file before production.

Here is a Swift concurrency question that looks easier than it is. A caller is waiting for the value...

Two goroutine-leak postmortems, a hardened bounded Go worker pool, and benchmark numbers for the ingest path sitting in front of an LLM gateway.