If your database were a race car, the operating system would be the track. It’s not the engine, and it’s not the driver — but it still matters. Even a well-tuned database can run into small, avoidable slowdowns if the underlying system isn’t configured properly.
Most of the time, performance work happens inside the database: indexes, queries, memory settings. And that makes sense — that’s where the biggest gains usually are. But there are a few operating system settings that can quietly influence stability and throughput, especially in production environments.
In this post, we’ll take a practical look at the key OS-level adjustments that are worth checking. Nothing extreme, nothing over-engineered — just the basics that help your database run smoothly without getting in its own way.
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