d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
9d18043979
freebsd-nq/share/man/man4/sched_ule.4

74 lines
2.3 KiB
Groff
Raw Normal View History

Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
.\" Copyright (c) 2005 Robert N. M. Watson
.\" 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. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
- sched_4bsd is no longer a default system scheduler on some architectures, so call it "traditional" instead. - sched_ule is no longer buggy or experimental (according to rev. 1.7 of sched_ule(4)), so don't call it experimental (reported by a user on stable@). Reviewed by: rwatson
2008-01-24 13:48:20 +00:00
.Dd January 21, 2008
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
.Dt SCHED_ULE 4
mdoc: order prologue macros consistently by Dd/Dt/Os Although groff_mdoc(7) gives another impression, this is the ordering most widely used and also required by mdocml/mandoc. Reviewed by: ru Approved by: philip, ed (mentors)
2010-04-14 19:08:06 +00:00
.Os
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
.Sh NAME
.Nm sched_ule
Revise markup.
2006-09-30 15:14:49 +00:00
.Nd ULE scheduler
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
.Sh SYNOPSIS
.Cd "options SCHED_ULE"
.Sh DESCRIPTION
(Mostly) markup fixes. Approved by: re (blanket)
2005-06-16 18:46:17 +00:00
The
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
.Nm
(Mostly) markup fixes. Approved by: re (blanket)
2005-06-16 18:46:17 +00:00
scheduler
- sched_4bsd is no longer a default system scheduler on some architectures, so call it "traditional" instead. - sched_ule is no longer buggy or experimental (according to rev. 1.7 of sched_ule(4)), so don't call it experimental (reported by a user on stable@). Reviewed by: rwatson
2008-01-24 13:48:20 +00:00
provides a number of advanced scheduler
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
features not present in
.Xr sched_4bsd 4 ,
- sched_4bsd is no longer a default system scheduler on some architectures, so call it "traditional" instead. - sched_ule is no longer buggy or experimental (according to rev. 1.7 of sched_ule(4)), so don't call it experimental (reported by a user on stable@). Reviewed by: rwatson
2008-01-24 13:48:20 +00:00
the traditional system scheduler.
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
These features address SMP and interactivity and include:
.Pp
.Bl -bullet -compact -offset indent
.It
Thread CPU affinity.
.It
CPU topology awareness, including for hyper-threading.
.It
Per-CPU run queues.
.It
Interactivity heuristics that detect interactive applications and schedules
them preferentially under high load.
.El
.Pp
The following sysctls are relevant to the operation of
.Nm :
.Bl -tag -width indent
(Mostly) markup fixes. Approved by: re (blanket)
2005-06-16 18:46:17 +00:00
.It Va kern.sched.name
Add rudimentary man pages for kernel options sched_4bsd and sched_ule, which document some of the sysctls available for configuring 4bsd, some of the bullet features of ule, and that ule is considered experimental still. MFC after: 3 days
2005-04-07 21:57:19 +00:00
This read-only sysctl reports the name of the active scheduler.
.El
.Sh SEE ALSO
.Xr sched_4bsd 4 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
scheduler first appeared in
.Fx 5.1 .
.Sh AUTHORS
.An Jeff Roberson
.Aq jeff@FreeBSD.org
Reference in New Issue Copy Permalink