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vfs.wapbl.flush_disk_cache is more about metadata than data, and

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more about safety in the event of power loss than safety in the
event of a crash.
This commit is contained in:
apb 2013-10-27 10:09:28 +00:00
parent 9562031f49
commit 92e9e572dc
1 changed files with 4 additions and 4 deletions
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8
share/man/man7/sysctl.7
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@ -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