GETLOADAVG(3) BSD Programmer's Manual GETLOADAVG(3)
getloadavg - get system load averages
#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.
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.
Please see sysctl(3) for a list of possible errors.
uptime(1), kvm_getloadavg(3), sysctl(3)
The getloadavg() function appeared in 4.3BSD-Reno. MirOS BSD #10-current August 19, 1997 1
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