GETLOADAVG(3)

NAME
getloadavg - get system load averages

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
Upon successful completion, the number of samples retrieved is returned. If an error occurs, -1 is returned and the global variable errno is set to indicate the error.

ERRORS
Please see sysctl(2) for a list of possible errors.

SEE ALSO
uptime(1), kvm_getloadavg(3), sysctl(2)

HISTORY
The getloadavg() function appeared in 4.3BSD Reno.