getloadavg(3) -- Linux man page

 

NAME

getloadavg - get system load averages  

SYNOPSIS

Fd #include <stdlib.h> Ft int Fn getloadavg double loadavg[] int nelem  

DESCRIPTION

The Fn getloadavg function returns the number of processes in the system run queue averaged over various periods of time. Up to Fa nelem samples are retrieved and assigned to successive elements of Fa loadavg Ns Bq . The system imposes a maximum of 3 samples, representing averages over the last 1, 5, and 15 minutes, respectively.  

DIAGNOSTICS

If the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.  

SEE ALSO

uptime(1), proc(5)  

HISTORY

The Fn getloadavg function appeared in BSD 4.3 Reno