Function top

salt/modules/ps.py:102–167

Return a list of top CPU consuming processes during the interval. num_processes = return the top N CPU consuming processes interval = the number of seconds to sample CPU usage over CLI Examples: .. code-block:: bash salt '*' ps.top salt '*' ps.top 5 10

(num_processes=5, interval=3)

def top(num_processes=5, interval=3):
    """
    Return a list of top CPU consuming processes during the interval.
    num_processes = return the top N CPU consuming processes
    interval = the number of seconds to sample CPU usage over

    CLI Examples:

    .. code-block:: bash

        salt '*' ps.top

        salt '*' ps.top 5 10
    """
    result = []
    start_usage = {}
    for pid in psutil.pids():
        try:
            process = psutil.Process(pid)
        except psutil.NoSuchProcess:
            continue
        else:
            try:
                user, system = process.cpu_times()[:2]
            except psutil.ZombieProcess:
                user = system = 0.0
        start_usage[process] = user + system
    time.sleep(interval)
    usage = set()
    for process, start in start_usage.items():
        try:
            user, system = process.cpu_times()[:2]
        except psutil.NoSuchProcess:
            continue
        now = user + system
        diff = now - start
        usage.add((diff, process))

    for diff, process in sorted(usage, key=lambda x: x[0], reverse=True):
        info = {
            "cmd": _get_proc_cmdline(process) or _get_proc_name(process),
            "user": _get_proc_username(process),
            "status": _get_proc_status(process),
            "pid": _get_proc_pid(process),
            "create_time": _get_proc_create_time(process),
            "cpu": {},
            "mem": {},
        }
        try:
            for key, value in process.cpu_times()._asdict().items():
                info["cpu"][key] = value
            for key, value in process.memory_info()._asdict().items():
                info["mem"][key] = value
        except psutil.NoSuchProcess:
            # Process ended since psutil.pids() was run earlier in this
            # function. Ignore this process and do not include this process in
            # the return data.
            continue