getloadavg - get system load averages
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.
If the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.
This function is available in glibc since version 2.2.
Not in POSIX.1. Present on the BSDs and Solaris.
This page is part of release 4.15 of the Linux
man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.