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Linux Server Disk I/O Tuning with IO Schedulers
In this episode, Lucas and Luna dive into Linux server disk I/O performance tuning by focusing on the three main I/O schedulers available in the modern Linux kernel: CFQ, Deadline, and noop. They explain how each scheduler works under the hood, when to choose one over the other, and walk through practical commands to check and change the scheduler on a running system. Using examples like a busy database server versus a virtual machine host, they show how the wrong scheduler can cause latency spikes or throughput bottlenecks. The episode also touches on how to make scheduler changes persistent…
The skinny
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