• CPU Frequency Scaling In Ubuntu
  So, you have an irritatingly loud CPU fan which is making you consider whether or not launching your laptop through the nearest window is a good idea. Well, before you do that, why not give CPU frequency scaling a go.
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• How To Benchmark Your System (CPU, File IO, MySQL) With sysbench
  sysbench is a benchmark suite which allows you to quickly get an impression about system performance which is important if you plan to run a database under intensive load. This article explains how to benchmark your CPU, file IO, and MySQL performance with sysbench.
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• How To Limit CPU Usage Of A Process With cpulimit (Debian/Ubuntu)
  This tutorial shows how you can limit the CPU usage of a process with the tool cpulimit on Debian/Ubuntu. cpulimit is a simple program that attempts to limit the CPU usage of a process (expressed in percentage, not in cpu time). This is useful to control batch jobs, when you don't want them to eat too much CPU. It does not act on the nice value or other scheduling priority stuff, but on the real CPU usage. Also, it is able to adapt itself to the overall system load, dynamically and quickly.
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