Linux Server Disk Performance with I/O Scheduling Tuning

In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux server I/O scheduling — a critical but often overlooked performance lever. They break down the three main schedulers in the modern kernel — mq-deadline, kyber, and BFQ — and explain when to use each one based on your workload. Lucas shares a real-world example: tuning a database server's NVMe drives from the default kyber to mq-deadline, which cut read latency spikes by 30 percent. Luna asks about the old CFQ scheduler and why it was removed. They also cover how to check the current scheduler per block device, change it at runtime with a simple echo command, and make the change persistent via udev rules. The episode ends with a brief appeal for listener support to keep the show ad-free, tied to the value of practical, no-fluff sysadmin knowledge.

#Linux #Sysadmin #ServerPerformance #IOScheduling #Kernel #BlockLayer #mqDeadline #Kyber #BFQ #StorageTuning #NVMe #Udev #PerformanceTuning #Technology #FexingoBusiness #BusinessPodcast #ServerAdmin #LinuxAdmin

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