f7a8bc4c04
track.
The $Id$ line is normally at the bottom of the main comment block in the
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.\"
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Approved by: bde
65 lines
2.7 KiB
Groff
65 lines
2.7 KiB
Groff
.\" Copyright (c) 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)kvm_getloadavg.3 8.1 (Berkeley) 6/4/93
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.\" $Id$
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.\"
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.Dd June 4, 1993
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.Dt KVM_GETLOADAVG 3
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.Os
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.Sh NAME
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.Nm kvm_getloadavg
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.Nd get load average of the system
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.Sh SYNOPSIS
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.Fd #include <kvm.h>
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.Ft int
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.Fn kvm_getloadavg "kvm_t *kd" "double loadavg[]" "int nelem"
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.Sh DESCRIPTION
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The
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.Fn kvm_getloadavg
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function returns the number of processes in the system run queue
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of the kernel indicated by
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.Fa kd ,
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averaged over various periods of time.
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Up to
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.Fa nelem
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samples are retrieved and assigned to successive elements of
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.Fa loadavg Ns Bq .
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The system imposes a maximum of 3 samples, representing averages
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over the last 1, 5, and 15 minutes, respectively.
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.Sh DIAGNOSTICS
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If the load average was unobtainable, \-1 is returned; otherwise,
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the number of samples actually retrieved is returned.
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.Sh SEE ALSO
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.Xr uptime 1 ,
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.Xr getloadavg 3 ,
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.Xr kvm 3
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