src/share/man/man7/sysctl.7 - diff

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Diff for /src/share/man/man7/sysctl.7 between version 1.82 and 1.90

version 1.82, 2014/06/13 19:09:07

version 1.90, 2015/07/11 16:47:49

Line 29

.\"

.\" @(#)sysctl.3 8.4 (Berkeley) 5/9/95

.\"

.Dd June 13, 2014

.Dd July 11, 2015

.Dt SYSCTL 7

.Os

.Sh NAME

Line 198 privilege may change the value.

.It hw.machine_arch string no

.It hw.model string no

.It hw.ncpu integer no

.It hw.ncpuonline integer no

.It hw.pagesize integer no

.It hw.physmem integer no

.It hw.physmem64 quad no

.It hw.usermem integer no

.It hw.usermem64 quad no

.El

.Pp

.Bl -tag -width "123456"

.It Li hw.alignbytes ( HW_ALIGNBYTES )

Alignment constraint for all possible data types.

Line 249 The machine CPU class.

.It Li hw.model ( HW_MODEL )

The machine model.

.It Li hw.ncpu ( HW_NCPU )

The number of CPUs.

The number of CPUs configured.

.It Li hw.ncpuonline ( HW_NCPUONLINE )

The number of CPUs online.

.It Li hw.pagesize ( HW_PAGESIZE )

The software page size.

.It Li hw.physmem ( HW_PHYSMEM )

Line 277 privilege may change the value.

Line 279 privilege may change the value.

.It kern.argmax integer no

.It kern.boothowto integer no

.It kern.boottime struct timeval no

.It kern.buildinfo string no

.\".It kern.bufq node not applicable

.It kern.ccpu integer no

.It kern.clockrate struct clockinfo no

Line 395 A

Line 398 A

.Vt struct timeval

structure is returned.

This structure contains the time that the system was booted.

.It Li kern.buildinfo

When the kernel is built, the build environment may optionally provide

arbitrary information to be stored in this variable.

.\" .It Li kern.bufq

.\" XXX: Undocumented.

.It Li kern.ccpu ( KERN_CCPU )

Line 598 The fourth level name selects the System

Line 604 The fourth level name selects the System

.It KERN_SYSVIPC_SEM_INFO struct sem_sysctl_info

.It KERN_SYSVIPC_SHM_INFO struct shm_sysctl_info

.El

.Pp

.Bl -tag -width "123456"

.It Li KERN_SYSVIPC_MSG_INFO

Return information on the System V style message facility.

Line 852 pipes.

Line 857 pipes.

.El

.It Li kern.pool

Provides statistics about the

.Xr pool 9

and

.Xr pool_cache 9

subsystems.

Line 1190 protocol number, though this is not alwa

Line 1195 protocol number, though this is not alwa

.It net.inet6 IPv6 values yes

.It net.key IPsec key management values yes

.El

.Pp

.Bl -tag -width "123456"

.It Li net.route ( PF_ROUTE )

.\" XXX really?

Line 1222 The currently defined protocols and name

Line 1226 The currently defined protocols and name

.It arp keep integer yes

.It arp log_movements integer yes

.It arp log_permanent_modify integer yes

.It arp log_unknown_network integer yes

.It arp log_wrong_iface integer yes

.It arp prune integer yes

.It arp refresh integer yes

Line 1485 Perform TCP checksum on loopback.

Line 1490 Perform TCP checksum on loopback.

.It Li tcp.init_win

A value indicating the TCP initial congestion window.

The valid range

is 0 to 10 (maximum specified by draft-ietf-tcpm-initcwnd-08.txt),

is 0 to 10 (maximum specified by RFC6928),

with a default of 4 (approximately 4K per RFC3390).

.It Li tcp.init_win_local

Line 1615 The currently defined protocols and name

Line 1620 The currently defined protocols and name

.It ip6 accept_rtadv integer yes

.It ip6 anonportalgo.selected string yes

.It ip6 anonportalgo.available string yes

.It ip6 anonportalgo.reserve struct yes

.It ip6 anonportmax integer yes

.It ip6 anonportmin integer yes

.It ip6 auto_flowlabel integer yes

Line 2041 set by the

Line 2046 set by the

and

.Dv SO_SNDBUF

options.

.It Li proc.pid.rlimit.vmemoryuse ( PROC_PID_LIMIT_AS )

The maximum size (in bytes) which a process can obtain.

.It Li proc.pid.rlimit.maxlwp ( PROC_PID_LIMIT_NTHR )

The maximum number of threads that cen be created and running at one time in

the process.

The first thread of each process is not counted against this.

.El

.Pp

The fifth level name is one of

Line 2226 privilege may change the value.

Line 2237 privilege may change the value.

.It vm.uvmexp2 struct uvmexp_sysctl no

.It vm.vmmeter struct vmtotal no

.El

.Pp

.Bl -tag -width "123456"

.It Li vm.anonmax ( VM_ANONMAX )

The percentage of physical memory which will be reclaimed

Line 2300 privilege may change the value.

Line 2310 privilege may change the value.

.It ddb.tee_msgbuf integer yes

.It ddb.commandonenter string yes

.El

.Pp

.Bl -tag -width "123456"

.It Li ddb.radix ( DDBCTL_RADIX )

The input and output radix.

Line 2352 The available second level names are:

Line 2361 The available second level names are:

.El

.Pp

Available settings are detailed below.

.Pp

.Bl -tag -width "123456"

.It Li security.curtain

If non-zero, will filter return objects according to the user

Line 2406 The available third and fourth level nam

Line 2414 The available third and fourth level nam

.It Li security.pax.segvguard.max_crashes integer yes

.It Li security.pax.segvguard.suspend_timeout integer yes

.El

.Pp

.Bl -tag -width "123456"

.It Li security.pax.aslr.enabled

Enable PaX ASLR (Address Space Layout Randomization).

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