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getloadavg.3

GETLOADAVG

Section: Linux Programmer's Manual (3)
Updated: 2007-12-08
Index Return to Main Contents
 

NAME

getloadavg - get system load averages  

SYNOPSIS

#define _BSD_SOURCE
#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.  

CONFORMING TO

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

SEE ALSO

uptime(1), proc(5), feature_test_macros(7)  

COLOPHON

This page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
VERSIONS
CONFORMING TO
SEE ALSO
COLOPHON

 

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