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authorMike Pechkin <mpech@cvs.openbsd.org>2001-10-05 14:45:55 +0000
committerMike Pechkin <mpech@cvs.openbsd.org>2001-10-05 14:45:55 +0000
commite7d0adf95322ccbac21d361be1700e9edb07eff2 (patch)
tree0a7ba8b2db2a1f697897ee36c97e0c9344da12c9 /share/man/man4/options.4
parent7ef5a345919c1cba77bdfe5ffcf43dde619dabd4 (diff)
Powered by @mantoya:
o) start new sentence on a new line; o) minor mdoc fixes; millert@ ok Tip of the day: www.mpechismazohist.com
Diffstat (limited to 'share/man/man4/options.4')
-rw-r--r--share/man/man4/options.483
1 files changed, 45 insertions, 38 deletions
diff --git a/share/man/man4/options.4 b/share/man/man4/options.4
index f426584dda5..8a8b8d4876b 100644
--- a/share/man/man4/options.4
+++ b/share/man/man4/options.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: options.4,v 1.83 2001/10/04 10:28:20 wilfried Exp $
+.\" $OpenBSD: options.4,v 1.84 2001/10/05 14:45:53 mpech Exp $
.\" $NetBSD: options.4,v 1.21 1997/06/25 03:13:00 thorpej Exp $
.\"
.\" Copyright (c) 1998 Theo de Raadt
@@ -296,7 +296,8 @@ Includes code implementing the AmigaDOS Fast File System
.Em ( ADOSFS ) .
Note that the Professional and Smart File Systems are
.Em not
-supported. See
+supported.
+See
.Xr mount_ados 8
for details.
.It Cd option EXT2FS
@@ -811,21 +812,23 @@ Enables PFKEYv2 (RFC 2367) support.
While not IP specific, this option is usually used in conjunction with option
.Em IPSEC .
.It Cd option ALTQ
-Enables ALTQ (Alternate Queueing). For simple rate-limiting, use
+Enables ALTQ (Alternate Queueing).
+For simple rate-limiting, use
.Xr tbrconfig 8
-to set up the interface transmission rate. To use queueing disciplines,
-their options should also be defined. Queueing disciplines are
-managed by
+to set up the interface transmission rate.
+To use queueing disciplines, their options should also be defined.
+Queueing disciplines are managed by
.Xr altqd 8 .
See
.Xr altq 9
for details on ALTQ.
.It Cd option ALTQ_CBQ
-Enables ALTQ's CBQ (Class-based Queueing) module. CBQ achieves both
-partitioning and sharing of link bandwidth by hierarchically
-structured classes. Each class has its own queue and is assigned its
-share of bandwidth. A child class can borrow bandwidth from its
-parent class as long as excess bandwidth is available.
+Enables ALTQ's CBQ (Class-based Queueing) module.
+CBQ achieves both partitioning and sharing of link bandwidth by hierarchically
+structured classes.
+Each class has its own queue and is assigned its share of bandwidth.
+A child class can borrow bandwidth from its parent class as long as excess
+bandwidth is available.
.It Cd option ALTQ_HFSC
Enables ALTQ's HFSC (Hierarchical Fair Service Curve) module.
HFSC supports both link-sharing and guaranteed real-time services.
@@ -833,14 +836,14 @@ H-FSC employs a service curve based QoS model, and its unique feature
is an ability to decouple delay and bandwidth allocation.
.It Cd option ALTQ_PRIQ
Enables ALTQ's PRIQ (Priority Queueing) module.
-PRIQ implements a simple priority-based queueing. A higher priority
-class is always served first.
+PRIQ implements a simple priority-based queueing.
+A higher priority class is always served first.
.It Cd option ALTQ_WFQ
Enables ALTQ's WFQ (Weighted Fair Queueing) module.
WFQ implements a weighted-round robin scheduler for a set of queues.
A weight can be assigned to each queue to give a different proportion
-of the link capacity. A hash function is used to map a flow to one of
-a set of queues.
+of the link capacity.
+A hash function is used to map a flow to one of a set of queues.
.It Cd option ALTQ_FIFOQ
Enables ALTQ's FIFO queue module.
FIFOQ is a simple drop-tail FIFO queue.
@@ -848,35 +851,38 @@ FIFOQ is a simple drop-tail FIFO queue.
Enables ALTQ's RED (Random Early Detection) module.
RED is an implicit congestion notification mechanism that exercises
packet dropping or packet marking stochastically according to the
-average queue length. RED can be viewed as an active buffer
-management mechanism and can be integrated into other queueing
-disciplines.
+average queue length.
+RED can be viewed as an active buffer management mechanism and can be
+integrated into other queueing disciplines.
.It Cd option ALTQ_RIO
Enables ALTQ's RIO (RED with In/Oout) module.
The original RIO has 2 sets of RED parameters; one for in-profile
-packets and the other for out-of-profile packets. At the ingress of
-the network, profile meters tag packets as IN or OUT based on
-contracted profiles for customers. Inside the network, IN packets
-receive preferential treatment by the RIO dropper.
+packets and the other for out-of-profile packets.
+At the ingress of the network, profile meters tag packets as IN or
+OUT based on contracted profiles for customers.
+Inside the network, IN packets receive preferential treatment by
+the RIO dropper.
ALTQ/RIO has 3 drop precedence levels defined for the Assured Forwarding
PHB of DiffServ (RFC2597).
.It Cd option ALTQ_BLUE
Enables ALTQ's Blue module.
Blue is another active buffer management mechanism.
.It Cd option ALTQ_FLOWVALVE
-Enables ALTQ's Flowvalve module. Flowvalve is a simple implementation
-of a RED penalty box that identifies and punishes misbehaving flows.
+Enables ALTQ's Flowvalve module.
+Flowvalve is a simple implementation of a RED penalty box that identifies
+and punishes misbehaving flows.
.It Cd option ALTQ_CDNR
Enables ALTQ's CDNR (diffserfv traffic conditioner) module.
Traffic conditioners are components to meter, mark, or drop incoming
-packets according to some rules. As opposed to queueing disciplines,
-traffic conditioners handle incoming packets at an input interface.
+packets according to some rules.
+As opposed to queueing disciplines, traffic conditioners handle incoming
+packets at an input interface.
.It Cd option ALTQ_NOPCC
Disables use of processor cycle counter (e.g., Pentium TSC on i386 and
-PCC on alpha) to measure time in ALTQ. This option should be defined
-for a non-Pentium i386 CPU which does not have TSC, SMP (per-CPU
-counters are not in sync), or power management which affects processor
-cycle counter.
+PCC on alpha) to measure time in ALTQ.
+This option should be defined for a non-Pentium i386 CPU which does not
+have TSC, SMP (per-CPU counters are not in sync), or power management
+which affects processor cycle counter.
.El
.Ss SCSI Subsystem Options
.Bl -ohang
@@ -926,22 +932,24 @@ See
for the default.
.It Cd option SEMMNI=value
Number of semaphore identifiers (also called semaphore handles
-and semaphore sets) available in the system. Default value is 10.
+and semaphore sets) available in the system.
+Default value is 10.
The kernel allocates memory for the control structures at startup,
so you should avoid arbitrarily large values.
.It Cd option SEMMNS=value
-Maximum number of semaphores in all sets in the system. Default
-value is 60.
+Maximum number of semaphores in all sets in the system.
+Default value is 60.
.It Cd option SEMMNU=value
Maximum number of semaphore undo structures in the system.
Default value is 30.
.It Cd option SEMUME=value
Maximum number of per-process undo operation entries in the
-system. Semaphore undo operations are invoked by the kernel
-when
+system.
+Semaphore undo operations are invoked by the kernel when
.Xr semop 2
is called with the SEM_UNDO flag and the process holding
-the semaphores terminates unexpectedly. Default value is 10.
+the semaphores terminates unexpectedly.
+Default value is 10.
.El
.Ss Operation Related Options
.Bl -ohang
@@ -974,8 +982,7 @@ These options set the number of pages available for the buffer cache.
Their default value is a machine dependent value, often calculated as
between 5% and 10% of total available RAM.
.It Cd option NTP
-Modify the scheduler code to add hooks necessary for running an NTP
-daemon.
+Modify the scheduler code to add hooks necessary for running an NTP daemon.
.Xr xntpd 8
is available as part of the port collection.
.It Cd option APM_NOPRINT