1.\" Copyright (c) 1992, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 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. 12.\" 3. All advertising materials mentioning features or use of this software 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 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)kvm_getloadavg.3 8.1 (Berkeley) 6/4/93 33.\" $FreeBSD: src/lib/libkvm/kvm_getloadavg.3,v 1.8.2.2 2001/12/17 10:08:30 ru Exp $ 34.\" $DragonFly: src/lib/libkvm/kvm_getloadavg.3,v 1.2 2003/06/17 04:26:49 dillon Exp $ 35.\" 36.Dd June 4, 1993 37.Dt KVM_GETLOADAVG 3 38.Os 39.Sh NAME 40.Nm kvm_getloadavg 41.Nd get load average of the system 42.Sh LIBRARY 43.Lb libkvm 44.Sh SYNOPSIS 45.In sys/types.h 46.In kvm.h 47.Ft int 48.Fn kvm_getloadavg "kvm_t *kd" "double loadavg[]" "int nelem" 49.Sh DESCRIPTION 50The 51.Fn kvm_getloadavg 52function returns the number of processes in the system run queue 53of the kernel indicated by 54.Fa kd , 55averaged over various periods of time. 56Up to 57.Fa nelem 58samples are retrieved and assigned to successive elements of 59.Fa loadavg Ns Bq . 60The system imposes a maximum of 3 samples, representing averages 61over the last 1, 5, and 15 minutes, respectively. 62.Sh DIAGNOSTICS 63If the load average was unobtainable, \-1 is returned; otherwise, 64the number of samples actually retrieved is returned. 65.Sh SEE ALSO 66.Xr uptime 1 , 67.Xr getloadavg 3 , 68.Xr kvm 3 69