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To know where the problem lies, if in IO or in CPU usage, all you need to do is to run top or any other similar monitoring tool while your program is running. Roughly, if it shows that CPU usage goes over 90%, then your problem is CPU, below 30% it is IO and in the middle it is both.

Well, this method will not work if your application just receives a few events per minute that are processed in less than a second, below the top (and your eyes!) resolution.

In reply to Re^3: Optimizing a large project. by salva
in thread Optimizing a large project. by dextius

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