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KVM_GETLOADAVG(3) NetBSD Library Functions Manual KVM_GETLOADAVG(3)
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kvm_getloadavg -- get system load averages, from live or dead kernels
Kernel Data Access Library (libkvm, -lkvm)
kvm_getloadavg(kvm_t *kd, double loadavg, int nelem);
The kvm_getloadavg() function returns the number of processes in the sys-
tem 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.
If the load average was unobtainable, -1 is returned; otherwise, the num-
ber of samples actually retrieved is returned.
uptime(1), getloadavg(3), kvm(3), kvm_open(3), sysctl(3)
NetBSD 9.0 December 11, 2018 NetBSD 9.0