GETLOADAVG(3) Library Functions Manual GETLOADAVG(3)

getloadavg
get system load averages

Standard C Library (libc, -lc)

#include <stdlib.h>
int
getloadavg(double loadavg[], int nelem);

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.

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

uptime(1), kvm_getloadavg(3), sysctl(3)

The getloadavg() function appeared in 4.3BSD-Reno.
April 12, 2011 NetBSD-current