Random Bulletin
Jul 23, 2026 · Backend Development
From Threads to Coroutines: Scaling to Millions of QPS
The article explains why the traditional one‑request‑one‑thread model collapses at tens of thousands of connections due to memory, scheduling and cache costs, and shows how user‑space coroutine scheduling, stack‑less designs, Go's GMP model, Java virtual threads and CSP channels enable millions of concurrent connections with synchronous‑style code while highlighting trade‑offs and pitfalls.
CSPCoroutinesGo
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