https://www.pistack.xyz/tags/asynchronous/ Recent content in Asynchronous on Pi Stack Hugo en-us Tue, 02 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-02-linux-async-io-libaio-posix-aio-iouring-guide/ Tue, 02 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-02-linux-async-io-libaio-posix-aio-iouring-guide/ <h2 id="introduction">Introduction</h2> <p>When a server application reads from disk, every millisecond spent waiting for I/O completion is a millisecond not serving requests. <strong>Asynchronous I/O (AIO)</strong> decouples I/O submission from completion, letting applications queue thousands of I/O operations and process results as they arrive. This article compares three Linux asynchronous I/O interfaces: <strong>libaio</strong> (Linux native AIO), <strong>POSIX aio</strong> (glibc), and <strong>kernel AIO</strong> with io_uring — helping you choose the right interface for database engines, storage systems, and high-throughput file servers.</p>