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freebsd-dev/share/man/man4/smp.4

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Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.\" Copyright (c) 1997
.\" Steve Passe <fsmp@FreeBSD.ORG>. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. The name of the developer may NOT be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
$FreeBSD$ tags moved to bottom of license aggmt.
1999-10-30 16:05:26 +00:00
.\" SUCH DAMAGE.
Add $Id$, to make it simpler for members of the translation teams to track. The $Id$ line is normally at the bottom of the main comment block in the man page, separated from the rest of the manpage by an empty comment, like so; .\" $Id$ .\" If the immediately preceding comment is a @(#) format ID marker than the the $Id$ will line up underneath it with no intervening blank lines. Otherwise, an additional blank line is inserted. Approved by: bde
1999-07-12 21:02:10 +00:00
.\"
$Id$ -> $FreeBSD$
1999-08-28 00:22:10 +00:00
.\" $FreeBSD$
Add $Id$, to make it simpler for members of the translation teams to track. The $Id$ line is normally at the bottom of the main comment block in the man page, separated from the rest of the manpage by an empty comment, like so; .\" $Id$ .\" If the immediately preceding comment is a @(#) format ID marker than the the $Id$ will line up underneath it with no intervening blank lines. Otherwise, an additional blank line is inserted. Approved by: bde
1999-07-12 21:02:10 +00:00
.\"
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
.Dd December 5, 2002
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Dt SMP 4
mdoc(7) police: removed HISTORY info from the .Os call.
2001-07-10 15:31:11 +00:00
.Os
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh NAME
.Nm SMP
mdoc(7) police: normalize .Nd.
2001-04-18 15:54:10 +00:00
.Nd description of the FreeBSD Symmetric MultiProcessor kernel
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh SYNOPSIS
Provide enhanced information on configuring SMP support in a kernel. Approved by: re
2002-12-07 01:50:06 +00:00
.Cd options SMP
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh DESCRIPTION
The
Removed whitespace at end-of-line; no content changes. I simply did cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//' BTW, what editors are the culprits? I'm using vim and it shows me whitespace at EOL in troff files with a thick blue block... Reviewed by: Silence from cvs diff -b MFC after: 7 days
2001-07-14 19:41:16 +00:00
.Nm
Spelling fixes. Submitted by: Josh Gilliam <josh@quick.net> PR: 6880
1998-06-08 06:12:02 +00:00
kernel implements symmetric multiprocessor support.
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh COMPATIBILITY
- Don't highlight options APIC_IO at the top since it only applies to i386 and this manpage is somewhat machine independent. - Don't redundantly say that SMP support is present for all supported architectures. Instead, say that it is present for all Tier-1 architectures. - Note that an SMP kernel not booting on a UP machine is an i386-only exception. - Add a paragraph about hyperthreading support including some docco on the machdep.hlt_logical_cpus sysctl ps@ recently added. - Note that SMP support for alpha, ia64, and sparc64 debuted in 5.0.
2003-04-21 20:05:33 +00:00
Support for multi-processor systems is present for all Tier-1
mdoc(7) police: markup nits. Approved by: re (blanket)
2002-12-09 12:28:33 +00:00
architectures on
.Fx .
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
Currently, this includes alpha, i386, ia64, and sparc64.
Provide enhanced information on configuring SMP support in a kernel. Approved by: re
2002-12-07 01:50:06 +00:00
Support is enabled using
.Cd options SMP .
- Don't highlight options APIC_IO at the top since it only applies to i386 and this manpage is somewhat machine independent. - Don't redundantly say that SMP support is present for all supported architectures. Instead, say that it is present for all Tier-1 architectures. - Note that an SMP kernel not booting on a UP machine is an i386-only exception. - Add a paragraph about hyperthreading support including some docco on the machdep.hlt_logical_cpus sysctl ps@ recently added. - Note that SMP support for alpha, ia64, and sparc64 debuted in 5.0.
2003-04-21 20:05:33 +00:00
On most platforms it is permissible to use the SMP
Provide enhanced information on configuring SMP support in a kernel. Approved by: re
2002-12-07 01:50:06 +00:00
kernel configuration on non-SMP equipped motherboards.
- Don't highlight options APIC_IO at the top since it only applies to i386 and this manpage is somewhat machine independent. - Don't redundantly say that SMP support is present for all supported architectures. Instead, say that it is present for all Tier-1 architectures. - Note that an SMP kernel not booting on a UP machine is an i386-only exception. - Add a paragraph about hyperthreading support including some docco on the machdep.hlt_logical_cpus sysctl ps@ recently added. - Note that SMP support for alpha, ia64, and sparc64 debuted in 5.0.
2003-04-21 20:05:33 +00:00
The only exception to this rule is the i386 platform.
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
.Pp
For i386 systems, the
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Nm
kernel supports motherboards that follow the Intel MP specification,
version 1.4.
Provide enhanced information on configuring SMP support in a kernel. Approved by: re
2002-12-07 01:50:06 +00:00
In addition to
.Cd options SMP ,
i386 also requires
.Cd options APIC_IO .
The
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
.Xr mptable 1
command may be used to view the status of multi-processor support.
- Don't highlight options APIC_IO at the top since it only applies to i386 and this manpage is somewhat machine independent. - Don't redundantly say that SMP support is present for all supported architectures. Instead, say that it is present for all Tier-1 architectures. - Note that an SMP kernel not booting on a UP machine is an i386-only exception. - Add a paragraph about hyperthreading support including some docco on the machdep.hlt_logical_cpus sysctl ps@ recently added. - Note that SMP support for alpha, ia64, and sparc64 debuted in 5.0.
2003-04-21 20:05:33 +00:00
.Pp
.Fx
supports hyperthreading on Intel CPU's on the i386 platform.
By default, logical CPUs are not used to execute user processes due to
performance penalties under common loads.
To allow the logical CPUs to execute user processes,
turn off the
.Va machdep.hlt_logical_cpus
sysctl by setting its value to zero.
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh SEE ALSO
Sort cross refereces in section SEE ALSO.
1997-09-29 10:11:02 +00:00
.Xr mptable 1 ,
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
.Xr condvar 9 ,
.Xr msleep 9 ,
.Xr mtx_pool 9 ,
.Xr mutex 9 ,
.Xr sema 9 ,
.Xr sx 9
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh HISTORY
The
.Nm
Hiten's patchset for section four manpages, slightly edited by me.
2003-06-28 23:53:39 +00:00
kernel's early history is not (properly) recorded.
It was developed
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
in a separate CVS branch until April 26, 1997, at which point it was
Hiten's patchset for section four manpages, slightly edited by me.
2003-06-28 23:53:39 +00:00
merged into 3.0-current.
By this date 3.0-current had already been
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
merged with Lite2 kernel code.
Take a pass at updating this man page a bit to at least mention SMPng, that we do MP on more than just i386, and add some cross-references. This is far from a perfect update, but at least it's a start. More will no doubt follow. Reviewed by: jhb Approved by: re
2002-12-07 01:37:12 +00:00
.Pp
.Fx 5.0
introduced support for a host of new synchronization primitives, and
a move towards fine-grained kernel locking rather than reliance on
a Giant kernel lock.
The SMPng Project relied heavily on the support of BSDi, who provided
reference source code from the fine-grained SMP implementation found
mdoc(7) police: markup nits. Approved by: re (blanket)
2002-12-09 12:28:33 +00:00
in
.Bsx .
- Don't highlight options APIC_IO at the top since it only applies to i386 and this manpage is somewhat machine independent. - Don't redundantly say that SMP support is present for all supported architectures. Instead, say that it is present for all Tier-1 architectures. - Note that an SMP kernel not booting on a UP machine is an i386-only exception. - Add a paragraph about hyperthreading support including some docco on the machdep.hlt_logical_cpus sysctl ps@ recently added. - Note that SMP support for alpha, ia64, and sparc64 debuted in 5.0.
2003-04-21 20:05:33 +00:00
.Pp
.Fx 5.0
also introduced support for SMP on the alpha, ia64, and sparc64 architectures.
Added missing SMP kernel manpage. Mostly a stub at this point, needs alot of work. Noticed by: Steve Roome steve@visint.co.uk
1997-08-04 21:02:11 +00:00
.Sh AUTHORS
.Sh AUTHOR -> .Sh AUTHORS according to mdoc specs. Use .An/.Aq.
1998-03-12 07:31:21 +00:00
.An Steve Passe Aq fsmp@FreeBSD.org
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