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'\" t
.\" Title: vfs_time_audit
.\" Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
.\" Date: 01/22/2012
.\" Manual: System Administration tools
.\" Source: Samba 3.6
.\" Language: English
.\"
.TH "VFS_TIME_AUDIT" "8" "01/22/2012" "Samba 3\&.6" "System Administration tools"
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
vfs_time_audit \- samba vfs module to log slow VFS operations
.SH "SYNOPSIS"
.HP \w'\ 'u
vfs objects = time_audit
.SH "DESCRIPTION"
.PP
This VFS module is part of the
\fBsamba\fR(7)
suite\&.
.PP
The
time_audit
VFS module logs system calls that take longer than the number of milliseconds defined by the variable
time_audit:audit_timeout\&. It will log the calls and the time spent in it\&.
.PP
It\'s kind of comparable with
strace \-T
and is helpful to reveal performance problems with the underlying file and storage subsystems\&.
.PP
This module is stackable\&.
.SH "OPTIONS"
.PP
time_audit:audit_timeout = number of milliseconds
.RS 4
VFS calls that take longer than the defined number of milliseconds that should be logged\&. The default is 10000 (10s)\&.
.RE
.SH "EXAMPLES"
.PP
This would log VFS calls that take longer than 3 seconds:
.sp
.if n \{\
.RS 4
.\}
.nf
\fI[sample_share]\fR
\m[blue]\fBpath = /test/sample_share\fR\m[]
\m[blue]\fBvfs objects = time_audit\fR\m[]
\m[blue]\fBtime_audit: audit_timeout = 3000\fR\m[]
.fi
.if n \{\
.RE
.\}
.SH "VERSION"
.PP
This man page is correct for version 3\&.6\&.0 of the Samba suite\&.
.SH "AUTHOR"
.PP
The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.
.PP
The time_audit VFS module was created with contributions from Abhidnya Chirmule\&.
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