How IO Multiplexing Works Under the Hood: select, poll, and epoll
IO multiplexing enables a single thread to monitor multiple file descriptors (FDs) and perform IO only when those descriptors become ready (readable, writable, or exceptional). It eliminates the traditional blocking IO model’s one-thread-per-connection overhead and avoids wasted cycles of pure non‑blocking IO. Linux provides three primary multi ...
Posted on Fri, 30 Oct 2026 16:31:42 +0000 by jjjamie