NAME
getloadavg - get system load averages
SYNOPSIS
#define _BSD_SOURCE
or
#define _GNU_SOURCE
#include <stdlib.h>
I int getloadavg(double loadavg [], int nelem );
DESCRIPTION
The
getloadavg
function returns the number of processes in the system run queue
averaged over various periods of time.
Up to
nelem
samples are retrieved and assigned to successive elements of
R 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.
HISTORY
The
getloadavg
function appeared in
4.3 Reno.
VERSION
This function is available in glibc since version 2.2.
CONFORMING TO
Not in POSIX.1-2001.
Present on the BSDs and Solaris.
SEE ALSO
