From 92e9e572dc21310aedd4549ef12e1ff7289a61d2 Mon Sep 17 00:00:00 2001 From: apb Date: Sun, 27 Oct 2013 10:09:28 +0000 Subject: [PATCH] vfs.wapbl.flush_disk_cache is more about metadata than data, and more about safety in the event of power loss than safety in the event of a crash. --- share/man/man7/sysctl.7 | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/share/man/man7/sysctl.7 b/share/man/man7/sysctl.7 index cdcdd7a04277..fab7f7d8d473 100644 --- a/share/man/man7/sysctl.7 +++ b/share/man/man7/sysctl.7 @@ -1,4 +1,4 @@ -.\" $NetBSD: sysctl.7,v 1.76 2013/04/10 00:24:28 wiz Exp $ +.\" $NetBSD: sysctl.7,v 1.77 2013/10/27 10:09:28 apb 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 April 9, 2013 +.Dd October 27, 2013 .Dt SYSCTL 7 .Os .Sh NAME @@ -164,8 +164,8 @@ capabilities with the following third level identifiers: .Bl -tag -width "123456" .It Li 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. +It defaults to 1 and it should always be on to ensure integrity +of file system metadata in the event of a power loss. For slow disks, turning it off can improve performance. .It Li vfs.wapbl.verbose_commit For each transaction log commit, print the number of bytes written