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Document the loader tunables which control hard process memory limits.

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Reviewed by:	ru
This commit is contained in:
Bruce M Simpson 2007-01-17 22:23:28 +00:00
parent f67af5c918
commit 394c6ef282
1 changed files with 21 additions and 1 deletions
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22
share/man/man7/tuning.7
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@ -23,7 +23,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd June 25, 2002
.Dd January 17, 2007
.Dt TUNING 7
.Os
.Sh NAME
@ -743,6 +743,26 @@ option
.Cd maxusers
instead.
.Pp
The
.Va kern.dfldsiz
and
.Va kern.dflssiz
tunables set the default soft limits for process data and stack size
respectively.
Processes may increase these up to the hard limits by calling
.Xr setrlimit 2 .
The
.Va kern.maxdsiz ,
.Va kern.maxssiz ,
and
.Va kern.maxtsiz
tunables set the hard limits for process data, stack, and text size
respectively; processes may not exceed these limits.
The
.Va kern.sgrowsiz
tunable controls how much the stack segment will grow when a process
needs to allocate more stack.
.Pp
.Va kern.ipc.nmbclusters
may be adjusted to increase the number of network mbufs the system is
willing to allocate.