getloadavg3
Get system load averages
Usage
#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
Library
Standard C library (libc, -lc)
Overview
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 |
Releases
13 releases since Debian 3.0 (Woody); the text changed 12 times.