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Monitoring network bandwidth, CPU and memory effectively

Here is a bunch of handy tips for today that will likely remain in your armoury forever. As a Linux sysadmin it’s sometimes difficult to visualise just what is causing a performance problem. Sure, it’s easy enough to see which process is hogging the CPU with tools like ‘top’ or its fancier brother, htop. When it comes to figuring out the long term load on a machine or understanding how much memory and network bandwidth…


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Analysing system performance with ‘Top’

There are literally hundreds of guides on the Internet detailling how to use the ‘top’ command. A very handy command-line tool that has come with UNIX since back in the dark ages, however not all of these guides are directed flatly at the new Linux user. This one won’t go into loads of detail but will give you the basics. Why would I want to run ‘top’ ? Top is a great utility to find out if your Linux machine is running slowly,…