https://www.pistack.xyz/tags/coroutines/ Recent content in Coroutines on Pi Stack Hugo en-us Sun, 21 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-21-coroutine-libraries-libaco-greenlet-libco-boost-context/ Sun, 21 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-21-coroutine-libraries-libaco-greenlet-libco-boost-context/ <h2 id="why-coroutines-matter-for-high-concurrency-systems">Why Coroutines Matter for High-Concurrency Systems</h2> <p>Traditional multi-threaded programming with one OS thread per task hits a scalability wall: each thread consumes 8-16 MB of stack space and incurs kernel scheduling overhead. At 10,000 concurrent connections, thread stacks alone consume 80-160 MB of memory. At 100,000 connections, the overhead becomes prohibitive. Coroutines solve this by multiplexing thousands of logical tasks onto a small number of OS threads — each coroutine uses only kilobytes of state rather than megabytes.</p>