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GETLOADAVG

Section: Linux Programmer's Manual (3)
Updated: 2015-03-02
Index Return to Main Contents
 

NAME

getloadavg - get system load averages  

SYNOPSIS

#define _BSD_SOURCE         /* See feature_test_macros(7) */
#include <stdlib.h>

int getloadavg(double loadavg[], int nelem);
 

DESCRIPTION

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.  

RETURN VALUE

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

VERSIONS

This function is available in glibc since version 2.2.  

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
getloadavg() Thread safetyMT-Safe
 

CONFORMING TO

Not in POSIX.1-2001. Present on the BSDs and Solaris.  

SEE ALSO

uptime(1), proc(5)  

COLOPHON

This page is part of release 3.81 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 http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
VERSIONS
ATTRIBUTES
CONFORMING TO
SEE ALSO
COLOPHON


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