Linux Server Performance Tuning
Contents
Article
A server that feels slow is often not short of hardware — it is short of sensible settings. Tuning Linux around your actual load extracts more from what you already pay for.
What gets analysed
- CPU load and the processes eating it;
- memory use and swap behaviour;
- disk I/O and the filesystem;
- network settings;
- system limits (open files and the rest).
The usual bottlenecks
Most often: not enough RAM with aggressive swapping, slow disk under the database, too few file descriptors for the connection count, poorly chosen service parameters. Each is diagnosed with the right tool (top, iostat, vmstat) and fixed specifically.
Measure first
The work is driven by metrics, not intuition: profile, change, verify the effect. That avoids tuning for the sake of tuning.
What you get
- the bottlenecks removed;
- stability under load;
- a report on what changed and why.
Common questions
Really without a hardware upgrade?
Often yes — most of the gain comes from configuration.
Could it hurt stability?
No — every change is justified and verified.
Will it help during traffic peaks?
Yes, limits and buffers are sized for exactly those peaks.
Server dragging? I will profile it and tune Linux around your load.
