NAME
getloadavg —
get system load
averages
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
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
loadavg[]. The system imposes a maximum of 3
samples, representing averages over the last 1, 5, and 15 minutes,
respectively.
RETURN VALUES
If the load average was unobtainable, -1 is returned; otherwise, the number of
samples actually retrieved is returned.
SEE ALSO
uptime(1),
kvm_getloadavg(3),
sysctl(3)
HISTORY
The
getloadavg() function appeared in
4.3BSD-Reno.