How to Stop Guessing Why Your Server is Slow
If your app keeps crashing or response times are creeping up, the culprit is almost always sitting in three places: CPU, RAM, or Disk. Knowing how to read these resources is a fundamental skill that saves hours of frantic 2 AM troubleshooting.
Instead of relying on heavy third-party monitoring agents, you can get a complete health snapshot using native terminal tools:
CPU: Use top or htop to look at user space vs. I/O wait.
RAM: Run free -h and keep your eyes on the available column, not the free column.
Disk: Check physical limits with df -h and analyze performance stress with iostat -x 1.
Don't wait for a hard crash. Build a performance baseline today so you can spot an anomaly before your users do.
👉 Read the full step-by-step breakdown on Fit Servers: https://www.fitservers.com/tutorials/howto/check-server-resource-usage-cpu-ram-disk/





















