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.\"

.\"     @(#)getloadavg.3	8.1 (Berkeley) 6/4/93

.\"

.\" 2007-12-08, mtk, Converted from mdoc to man macros

.\"

.TH GETLOADAVG 3 2016-03-15 "Linux" "Linux Programmer's Manual"

.SH NAME

getloadavg \- get system load averages

.SH SYNOPSIS

.nf

.B #include <stdlib.h>

.PP

.BI "int getloadavg(double " loadavg[] ", int " nelem );

.fi

.PP

.in -4n

Feature Test Macro Requirements for glibc (see

.BR feature_test_macros (7)):

.in

.PP

.BR getloadavg ():

.nf

    Since glibc 2.19:

        _DEFAULT_SOURCE

    In glibc up to and including 2.19:

        _BSD_SOURCE

.fi

.SH DESCRIPTION

The

.BR getloadavg ()

function returns the number of processes in the system run queue

averaged over various periods of time.

Up to

.I nelem

samples are retrieved and assigned to successive elements of

.IR loadavg [].

The system imposes a maximum of 3 samples, representing averages

over the last 1, 5, and 15 minutes, respectively.

.SH RETURN VALUE

If the load average was unobtainable, \-1 is returned; otherwise,

the number of samples actually retrieved is returned.

.\" .SH HISTORY

.\" The

.\" BR getloadavg ()

.\" function appeared in

.\" 4.3BSD Reno .

.SH VERSIONS

This function is available in glibc since version 2.2.

.SH ATTRIBUTES

For an explanation of the terms used in this section, see

.BR attributes (7).

.TS

allbox;

lb lb lb

l l l.

Interface	Attribute	Value

T{

.BR getloadavg ()

T}	Thread safety	MT-Safe

.TE

.SH CONFORMING TO

Not in POSIX.1.

Present on the BSDs and Solaris.

.\" mdoc seems to have a bug - there must be no newline here

.SH SEE ALSO

.BR uptime (1),

.BR proc (5)

.SH COLOPHON

This page is part of release 4.15 of the Linux

.I 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/.