cpulimit adalah sebuah program sederhana yang cuba untuk menyekat penggunaan CPU dari sebuah proses (dinyatakan dalam peratusan, tidak dalam waktu cpu). Hal ini berguna untuk mengendalikan kerja batch, bila anda tidak mahu mereka makan terlalu banyak cpu. Ia tidak bertindak berdasarkan nilai bagus atau hal-hal penjadwalan keutamaan lain, but on the real cpu usage. Juga, ia mampu menyesuaikan diri dengan beban sistem keseluruhan, dinamik dan cepat.

Cara kerjanya

Note that you don’t need to read this paragraph in order to use cpulimit, you can safely skip it if you are not interested in tweaking cpulimit.

So, you are curious to know the secrets of cpulimit Of course there is no secret if you are a C developer, but I will try to explain to everyone. The work of cpulimit is done all in userspace, so it doesn’t interfere with the Linux scheduler. Basically, the target process, which you can specify by pid, name, or command line, is continuosly paused and resumed by sending it SIGSTOP and SIGCONT signals. Signals are sent by cpulimit in appropriate moments, based on the limit specified by user and the process statistics read from /proc. Continue Reading cpulimit – Limit the cpu usage of a process