How to: Using killall to Stop Processes with Command Line

Sometimes you may find your server in a state of high load caused by out control of processes. First you’ll want to use a command like htop, top, or ps, to get an idea on the server’s current state. If you aren’t familiar with those utilities we’d suggest checking our our article on htop.

After you have an initial assessment of the server’s current load you will have a better idea on how to proceed. More often than not the load is likely being caused by regular server traffic and usage.

Generally that will mean the load is being caused by a high number of Apache, PHP, or MySQL processes. After all most servers are hosting websites and these are the most commonly required programs to run a website. With that in mind during times of high load it’s often nice to quickly stop all processes of a certain type.
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Monitoring Server Processes With Top

The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of tasks currently being managed by the Linux kernel. The types of system summary information shown and the types, order and size of information displayed for tasks are all user configurable.

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