diff options
| author | Pav Lucistnik <pav@FreeBSD.org> | 2007-05-12 15:33:18 +0000 |
|---|---|---|
| committer | Pav Lucistnik <pav@FreeBSD.org> | 2007-05-12 15:33:18 +0000 |
| commit | 2d794a54fefee019b60f14349a38fd8f984da493 (patch) | |
| tree | c85496431f0b63baa5e9cfebd6c35b63d4e5b050 /share/man/man4/md.4 | |
| parent | bae1345b9d7fab29e4db6f59b2e22e77bac41f8b (diff) | |
| download | src-2d794a54fefee019b60f14349a38fd8f984da493.tar.gz src-2d794a54fefee019b60f14349a38fd8f984da493.zip | |
Talk more about swap backing
PR: docs/78041 (inspired by)
Submitted by: Lars Kristiansen <lars+lister.freebsd@adventuras.no>
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=169505
Diffstat (limited to 'share/man/man4/md.4')
| -rw-r--r-- | share/man/man4/md.4 | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/share/man/man4/md.4 b/share/man/man4/md.4 index f13de64881b9..7fa8e5ced2cf 100644 --- a/share/man/man4/md.4 +++ b/share/man/man4/md.4 @@ -50,7 +50,14 @@ A regular file is used as backing store. This allows for mounting ISO images without the tedious detour over actual physical media. .It Cm swap -Backing store is allocated from swap space. +Backing store 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 memory. +Using +.Cm swap +backing is generally preferable over +.Cm malloc +backing. .El .Pp For more information, please see |