why does the process get cpu_usage info by processes_by_exact_name method not equal to the info that compute's activity monitor show?

[lzm420241]

here my code:

loop{
	s.refresh_processes();
         for process in s.processes_by_exact_name(process_name) {
		println!("process name: {}, process pid: {}, memory usage: {} bytes, cpu usage: {}%", process.name(), process.pid(), process.memory(), process.cpu_usage());
        }
	thread::sleep(System::MINIMUM_CPU_UPDATE_INTERVAL);
}

[lzm420241]

now, how can i prove that's info is right?

[GuillaumeGomez]

Tricky question. For that you'd need to have the update performed at the exact same time as the monitor you're using. If the numbers are somewhat "close", I suppose it's good enough.