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Epoll and Kqueue: How Operating Systems Learned to Wait Efficiently
- amabito 7mo agoOne thing I find fascinating about epoll/kqueue is how much modern async frameworks abstract away the underlying readiness model. A lot of people talk about “async performance” without realizing the core efficiency gain came from avoiding O(n) scans on idle FDs. Curious how many higher-level runtimes still leak edge-triggered vs level-triggered semantics in subtle ways.