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1 | .\" Copyright (c) 1989, 1991, 1993 | |
2 | .\" The Regents of the University of California. All rights reserved. | |
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5 | .\" modification, are permitted provided that the following conditions | |
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8 | .\" notice, this list of conditions and the following disclaimer. | |
9 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer in the | |
11 | .\" documentation and/or other materials provided with the distribution. | |
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13 | .\" must display the following acknowledgement: | |
14 | .\" This product includes software developed by the University of | |
15 | .\" California, Berkeley and its contributors. | |
16 | .\" 4. Neither the name of the University nor the names of its contributors | |
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20 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
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32 | .\" @(#)getloadavg.3 8.1 (Berkeley) 6/4/93 | |
33 | .\" $FreeBSD: src/lib/libc/gen/getloadavg.3,v 1.8 2001/10/01 16:08:51 ru Exp $ | |
34 | .\" | |
35 | .Dd June 4, 1993 | |
36 | .Dt GETLOADAVG 3 | |
37 | .Os | |
38 | .Sh NAME | |
39 | .Nm getloadavg | |
40 | .Nd get system load averages | |
41 | .Sh LIBRARY | |
42 | .Lb libc | |
43 | .Sh SYNOPSIS | |
44 | .In stdlib.h | |
45 | .Ft int | |
46 | .Fn getloadavg "double loadavg[]" "int nelem" | |
47 | .Sh DESCRIPTION | |
48 | The | |
49 | .Fn getloadavg | |
50 | function returns the number of processes in the system run queue | |
51 | averaged over various periods of time. | |
52 | Up to | |
53 | .Fa nelem | |
54 | samples are retrieved and assigned to successive elements of | |
55 | .Fa loadavg Ns Bq . | |
56 | The system imposes a maximum of 3 samples, representing averages | |
57 | over the last 1, 5, and 15 minutes, respectively. | |
58 | .Sh DIAGNOSTICS | |
59 | If the load average was unobtainable, \-1 is returned; otherwise, | |
60 | the number of samples actually retrieved is returned. | |
61 | .Sh SEE ALSO | |
62 | .Xr uptime 1 , | |
63 | .Xr kvm_getloadavg 3 , | |
64 | .Xr sysctl 3 | |
65 | .Sh HISTORY | |
66 | The | |
67 | .Fn getloadavg | |
68 | function appeared in | |
69 | .Bx 4.3 Reno . |