NAME
kvm_getloadavg —
get system load averages, from live or
dead kernels
LIBRARY
library “libkvm”
SYNOPSIS
#include
<sys/resource.h>
#include <kvm.h>
int
kvm_getloadavg(kvm_t
*kd, double
loadavg[], int
nelem);
DESCRIPTION
Thekvm_getloadavg()
function returns the number of processes in the system run queue of the kernel
or core file, indicated by kd. 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. On a live system, the load average is obtained by calling
getloadavg(3). If performing post mortem on a kernel core file,
kvm_getloadavg is able to extract the system load
averages at the time of death from the core file directly.
RETURN VALUES
If the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.