d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Document the following sysctls:

Browse Source 
kern.geom.eli.version
kern.geom.eli.key_cache_limit
kern.geom.eli.key_cache_hits
kern.geom.eli.key_cache_misses

MFC after:	1 week
This commit is contained in:
Pawel Jakub Dawidek 2011-05-08 09:46:09 +00:00
parent 0d9d733c57
commit 1b93915ff2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=221633
1 changed files with 22 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
sbin/geom/class/eli/geli.8
View File

@ -1,4 +1,4 @@
.\" Copyright (c) 2005-2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
.\" Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
@ -627,9 +627,13 @@ variables can be used to control the behavior of the
.Nm ELI
GEOM class.
The default value is shown next to each variable.
All variables can also be set in
Some variables can also be set in
.Pa /boot/loader.conf .
.Bl -tag -width indent
.It Va kern.geom.eli.version
Version number of the
.Nm ELI
GEOM class.
.It Va kern.geom.eli.debug : No 0
Debug level of the
.Nm ELI
@ -668,6 +672,22 @@ When set to 1, can speed-up crypto operations by using batching.
Batching allows to reduce number of interrupts by responding on a group of
crypto requests with one interrupt.
The crypto card and the driver has to support this feature.
.It Va kern.geom.eli.key_cache_limit : No 8192
Specifies how many encryption keys to cache.
The default limit
.No ( 8192
keys) will allow to cache all keys for 4TB provider with 512 bytes sectors and
will take around 1MB of memory.
.It Va kern.geom.eli.key_cache_hits
Reports how many times we were looking up a key and it was already in cache.
This sysctl is not updated for providers that need less keys than the limit
specified in
.Va kern.geom.eli.key_cache_limit .
.It Va kern.geom.eli.key_cache_misses
Reports how many times we were looking up a key and it was not in cache.
This sysctl is not updated for providers that need less keys than the limit
specified in
.Va kern.geom.eli.key_cache_limit .
.El
.Sh EXIT STATUS
Exit status is 0 on success, and 1 if the command fails.