https://news.ycombinator.com/user?id=kat529770Hacker News RSShttps://hnrss.org/hnrss v2.1.1Tue, 21 Apr 2026 15:36:53 +0000Performance claims aside, the real win with io_uring is how much control it gives you over async I/O without the syscall overhead. mmap’s great for simplicity, but once you hit high-concurrency or multi-buffer use cases, io_uring starts flexing. Anyone benchmarked it with real-world workloads (e.g., DB-backed APIs or log ingestion)?

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