getloadavg - Man Page

Standard C library (libc, -lc)

#include <stdlib.h>

int getloadavg(double loadavg[], int n);

getloadavg():

    Since glibc 2.19:
        _DEFAULT_SOURCE
    In glibc up to and including 2.19:
        _BSD_SOURCE

The getloadavg() function returns the number of processes in the system run queue averaged over various periods of time. Up to n samples are retrieved and assigned to successive elements of loadavg[]. The system imposes a maximum of 3 samples, representing averages over the last 1, 5, and 15 minutes, respectively.

If the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.

For an explanation of the terms used in this section, see attributes(7).

BSD.

4.3BSD-Reno, Solaris. glibc 2.2.

uptime(1), proc(5)