NAME¶

getloadavg - get system load averages

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

#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

DESCRIPTION¶

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.

RETURN VALUE¶

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

ATTRIBUTES¶

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

STANDARDS¶

BSD.

HISTORY¶

4.3BSD-Reno, Solaris. glibc 2.2.

SEE ALSO¶

uptime(1), proc(5)