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fixup talk of kern.maxswzone... It's been 32MB for almost 5 years now...

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and only supports just over 7GB of swap...

Sound a bit more professional..

Inspired by:	Marc G. Fournier
MFC After:	3 days
This commit is contained in:
jmg 2007-05-05 17:36:42 +00:00
parent 4e8b8cd34e
commit bd12433a5f
1 changed files with 6 additions and 7 deletions
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13
sys/boot/common/loader.8
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@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd November 29, 2006
.Dd May 5, 2007
.Dt LOADER 8
.Os
.Sh NAME
@ -574,20 +574,19 @@ Limits the amount of KVM to be used to hold swap
meta information, which directly governs the
maximum amount of swap the system can support.
This value is specified in bytes of KVA space
and defaults to around 70MBytes.
and defaults to 32MBytes on i386 and amd64.
Care should be taken
to not reduce this value such that the actual
amount of configured swap exceeds 1/2 the
kernel-supported swap.
The default 70MB allows
the kernel to support a maximum of (approximately)
14GB of configured swap.
Only mess around with
The default of 32MB allows
the kernel to support a maximum of ~7GB of swap.
Only change
this parameter if you need to greatly extend the
KVM reservation for other resources such as the
buffer cache or
.Va kern.ipc.nmbclusters .
Modifies
Modifies kernel option
.Dv VM_SWZONE_SIZE_MAX .
.It Va kern.maxbcache
Limits the amount of KVM reserved for use by the