NAME

kvm_getloadavg — get system load averages

LIBRARY

Kernel Data Access Library (libkvm, -lkvm)

SYNOPSIS

#include <sys/resource.h>
#include <kvm.h>

int
kvm_getloadavg(kvm_t *kd, double loadavg[], int nelem);

DESCRIPTION

The kvm_getloadavg() function returns the number of processes in the system run queue of the kernel indicated by kd, 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), getloadavg(3), kvm(3), kvm_open(3), sysctl(3)