diff options
Diffstat (limited to 'sbin/mdconfig/mdconfig.8')
| -rw-r--r-- | sbin/mdconfig/mdconfig.8 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sbin/mdconfig/mdconfig.8 b/sbin/mdconfig/mdconfig.8 index 94559a68f4d8..fd7de3d0c09d 100644 --- a/sbin/mdconfig/mdconfig.8 +++ b/sbin/mdconfig/mdconfig.8 @@ -41,7 +41,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 11, 2007 +.Dd November 28, 2007 .Dt MDCONFIG 8 .Os .Sh NAME @@ -98,7 +98,14 @@ A file specified with .Fl f Ar file becomes the backing store for this memory disk. .It Cm swap -Swap space is used to back this memory disk. +Storage for this type of memory disk is allocated from buffer +memory. Pages get pushed out to the swap when the system is +under memory pressure, otherwise they stay in the operating +emory. Using +.Cm swap +backing is generally preferable over +.Cm malloc +backing. .El .It Fl f Ar file Filename to use for the vnode type memory disk. Options |