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How To Troubleshoot Slow Linux Servers
Pinpoint ballooning resource hogs quickly

Requests are taking forever. Latency times are increasing rapidly. Alerts are being sent over and over again. It's happening…
…One of your Linux machines is dying a slow, painful death.
We’ve all been there. It’s a nerve-wracking situation to be in.
Diagnosing a slow Linux server can be a tricky process. If you’re running a lot of production services, the potential problem area is ever-broadening. Is it CPU? Memory? Disk I/O?
In this article, we’ll look at the arsenal of tools you can use to get to the bottom of a lagging host. Locate those greedy resource hogs, restore peace and prosperity to your fiefdom of servers.
CPU usage over time with atop
Want to know absolutely everything you can about your system usage over time? Want it all jammed into one big window of glorious data? The atop
program is for you.

One of the many benefits of using atop is that it can record the performance of your host over time. By default, it will show you 10-second…