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+.\" Copyright (c) 2003-2009 Apple Inc. All rights reserved.
+.\" 
+.\" The contents of this file constitute Original Code as defined in and
+.\" are subject to the Apple Public Source License Version 1.1 (the
+.\" "License").  You may not use this file except in compliance with the
+.\" License.  Please obtain a copy of the License at
+.\" http://www.apple.com/publicsource and read it before using this file.
+.\" 
+.\" This Original Code and all software distributed under the License are
+.\" distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+.\" EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+.\" INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+.\" FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+.\" License for the specific language governing rights and limitations
+.\" under the License.
+.\" 
+.\"     @(#)hostinfo.1
+.Dd October 30, 2003               \" DATE 
+.Dt hostinfo 8      \" Program name and manual section number 
+.Os "Mac OS X"
+.Sh NAME                 \" Section Header - required - don't modify 
+.Nm hostinfo
+.\" The following lines are read in generating the apropos(man -k) database. Use only key
+.\" words here as the database is built based on the words here and in the .ND line. 
+.\" Use .Nm macro to designate other names for the documented program.
+.Nd host information
+.Sh SYNOPSIS             \" Section Header - required - don't modify
+.Nm
+.Sh DESCRIPTION          \" Section Header - required - don't modify
+The
+.Nm
+command displays information about the host system on which the command is executing.
+The output includes
+a  kernel version description,
+processor configuration data,
+available physical memory,
+and various scheduling statistics.
+.Pp
+.Sh OPTIONS
+There are no options.
+.Sh DISPLAY
+.Pp
+.Bl -ohang -width Primary_memory_available_ -offset indent
+.It Mach kernel version:
+The version string compiled into the kernel executing on the host system.
+.Pp
+.It Processor Configuration:
+The maximum possible processors for which the kernel is configured, 
+followed by the number of physical and logical processors available.
+.Pp
+Note: on Intel architectures, physical processors are referred to as cores, and 
+logical processors are referred to as hardware threads; there may be multiple
+logical processors per core and multiple cores per processor package.
+This command does not report the number of processor packages.
+.Pp
+.It Processor type:
+The host's processor type and subtype.
+.Pp
+.It Processor active:
+A list of active processors on the host system.
+Active processors are members of a processor set and are ready to 
+dispatch threads.
+On a single processor system, the active processor, is processor 0.
+.Pp
+.It Primary memory available:
+The amount of physical memory that is configured for use on the host system.
+.Pp
+.It Default processor set:
+Displays the number of tasks currently assigned to the host processor set,
+the number of threads currently assigned to the host processor set,
+and the number of processors included in the host processor set.
+.Pp
+.It Load average:
+Measures the average number of threads in the run queue.
+.Pp
+.It Mach factor:
+A variant of the load average which measures 
+the processing resources available to a new thread.
+Mach factor is based on the number of CPUs divided by (1 + the number of runnablethreads)
+or 
+the number of CPUs minus the number of runnable threads when the number of runnable threads
+is less than the number of CPUs.
+The closer the Mach factor value is to zero, the higher the load.
+On an idle system with a fixed number of active processors, the mach factor will be equal to the number of CPUs.
+.El
+.Sh SEE ALSO 
+.\" List links in ascending order by section, alphabetically within a section.
+.Xr sysctl 8
+.\" .Sh BUGS              \" Document known, unremedied bugs