Linux application monitor

Is there any good applications on linux that can monitor a process and record how much cpu it is ta开发者_Python百科king up and what files it has open or system commands its performing.

Can also use it to hook into the so if needed.

Free is better.

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top in its various incarnations. Personally I like htop. It can also show what functions the processes are sleeping in. If you need a detailed information about the functions a process calls, use strace

For tracking open files per process lsof is your friend.

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You can look at perfkit, but it is still in development.

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This question is possibly more appropriate on server fault. However check answers to this. It summarizes everything I can suggest. Top should give you the CPU usage both overall as well as split up of all processes currently being executed on your system.