Module Name: src
Committed By: christos
Date: Sun Jan 9 16:55:59 UTC 2011
Modified Files:
src/share/man/man7: sysctl.7
Log Message:
document the new wapbl sysctls.
To generate a diff of this commit:
cvs rdiff -u -r1.53 -r1.54 src/share/man/man7/sysctl.7
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man7/sysctl.7
diff -u src/share/man/man7/sysctl.7:1.53 src/share/man/man7/sysctl.7:1.54
--- src/share/man/man7/sysctl.7:1.53 Tue Dec 14 11:23:59 2010
+++ src/share/man/man7/sysctl.7 Sun Jan 9 11:55:59 2011
@@ -1,4 +1,4 @@
-.\" $NetBSD: sysctl.7,v 1.53 2010/12/14 16:23:59 jruoho Exp $
+.\" $NetBSD: sysctl.7,v 1.54 2011/01/09 16:55:59 christos Exp $
.\"
.\" Copyright (c) 1993
.\" The Regents of the University of California. All rights reserved.
@@ -29,7 +29,7 @@
.\"
.\" @(#)sysctl.3 8.4 (Berkeley) 5/9/95
.\"
-.Dd December 14, 2010
+.Dd January 9, 2010
.Dt SYSCTL 7
.Os
.Sh NAME
@@ -133,7 +133,7 @@
.Li vfs.generic ( VFS_GENERIC ) ,
is used to get general information about all filesystems.
It has the following third level identifiers:
-.Bl -tag -width compact
+.Bl -tag -width "vfs.generic.maxtypenum (VFS_MAXTYPENUM)"
.It vfs.generic.maxtypenum ( VFS_MAXTYPENUM )
The highest valid filesystem type number.
.It vfs.generic.conf ( VFS_CONF )
@@ -141,6 +141,20 @@
level identifier.
.El
.Pp
+A second level name for controlling the
+.Xr wapbl 4
+(Write Ahead Physical Block Logging file system journalling)
+capabilities with the following third level identifiers:
+.Bl -tag -width "vfs.wapbl.flush_disk_cache"
+.It vfs.wapbl.flush_disk_cache Controls whether to attempt to flush the
+disk cache on each commit.
+It defaults to 1 and it should always be on to ensure data integrity in
+case of a crash.
+For slow disks, turning it off can improve performance.
+.It vfs.wapbl.verbose_commit For each transaction log commit, print the
+number of bytes written and the time it took to commit as seconds.nanoseconds.
+.El
+.Pp
The remaining second level identifiers are the file-system names, identified
by the type number returned by a
.Xr statvfs 2
