1GETLOADAVG(3) BSD Library Functions Manual GETLOADAVG(3)
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4 getloadavg — get system load averages
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7 #define _BSD_SOURCE
8 #include <stdlib.h>
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10 int
11 getloadavg(double loadavg[], int nelem);
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14 The getloadavg() function returns the number of processes in the system
15 run queue averaged over various periods of time. Up to nelem samples are
16 retrieved and assigned to successive elements of loadavg[]. The system
17 imposes a maximum of 3 samples, representing averages over the last 1, 5,
18 and 15 minutes, respectively.
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21 If the load average was unobtainable, -1 is returned; otherwise, the num‐
22 ber of samples actually retrieved is returned.
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25 uptime(1), proc(5,) feature_test_macros(7)
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28 The getloadavg() function appeared in 4.3BSD-Reno. This function is
29 available in glibc since version 2.2.
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32 Not in POSIX.1-2001. Present on the BSDs and Solaris.
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344.3BSD June 4, 1993 4.3BSD