getloadavg(3) | Library Functions Manual | getloadavg(3) |
NAME
getloadavg - get system load averages
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int getloadavg(double loadavg[], int n);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
getloadavg():
Since glibc 2.19: _DEFAULT_SOURCE In glibc up to and including 2.19: _BSD_SOURCE
DESCRIPTION
The getloadavg() function returns the number of processes in the system run queue averaged over various periods of time. Up to n 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.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
getloadavg () | Thread safety | MT-Safe |
STANDARDS
BSD.
HISTORY
4.3BSD-Reno, Solaris. glibc 2.2.
SEE ALSO
2025-05-06 | Linux man-pages 6.14 |