Manpage of GETLOADAVG
GETLOADAVGSection: Linux Programmer's Manual (3)
NAMEgetloadavg - get system load averages
#include <stdlib.h>int getloadavg(double loadavg, int nelem);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
Since glibc 2.19: _DEFAULT_SOURCE In glibc up to and including 2.19: _BSD_SOURCE
DESCRIPTIONThe getloadavg() function returns the number of processes in the system run queue averaged over various periods of time. Up to nelemsamples 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.
RETURN VALUEIf the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.
VERSIONSThis function is available in glibc since version 2.2.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
CONFORMING TONot in POSIX.1. Present on the BSDs and Solaris.
SEE ALSOuptime(1), proc(5)
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