| 1 | '\" t
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| 2 | .\" Title: vfs_time_audit
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
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| 5 | .\" Date: 08/08/2011
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| 6 | .\" Manual: System Administration tools
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| 7 | .\" Source: Samba 3.6
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "VFS_TIME_AUDIT" "8" "08/08/2011" "Samba 3\&.6" "System Administration tools"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * set default formatting
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" disable hyphenation
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| 15 | .nh
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| 16 | .\" disable justification (adjust text to left margin only)
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| 17 | .ad l
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| 18 | .\" -----------------------------------------------------------------
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| 19 | .\" * MAIN CONTENT STARTS HERE *
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| 20 | .\" -----------------------------------------------------------------
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| 21 | .SH "NAME"
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| 22 | vfs_time_audit \- samba vfs module to log slow VFS operations
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| 23 | .SH "SYNOPSIS"
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| 24 | .HP \w'\ 'u
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| 25 | vfs objects = time_audit
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| 26 | .SH "DESCRIPTION"
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| 27 | .PP
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| 28 | This VFS module is part of the
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| 29 | \fBsamba\fR(7)
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| 30 | suite\&.
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| 31 | .PP
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| 32 | The
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| 33 | time_audit
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| 34 | VFS module logs system calls that take longer than the number of milliseconds defined by the variable
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| 35 | time_audit:audit_timeout\&. It will log the calls and the time spent in it\&.
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| 36 | .PP
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| 37 | It\'s kind of comparable with
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| 38 | strace \-T
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| 39 | and is helpful to reveal performance problems with the underlying file and storage subsystems\&.
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| 40 | .PP
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| 41 | This module is stackable\&.
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| 42 | .SH "OPTIONS"
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| 43 | .PP
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| 44 | time_audit:audit_timeout = number of milliseconds
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| 45 | .RS 4
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| 46 | VFS calls that take longer than the defined number of milliseconds that should be logged\&. The default is 10000 (10s)\&.
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| 47 | .RE
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| 48 | .SH "EXAMPLES"
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| 49 | .PP
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| 50 | This would log VFS calls that take longer than 3 seconds:
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| 51 | .sp
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| 52 | .if n \{\
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| 53 | .RS 4
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| 54 | .\}
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| 55 | .nf
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| 56 | \fI[sample_share]\fR
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| 57 | \m[blue]\fBpath = /test/sample_share\fR\m[]
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| 58 | \m[blue]\fBvfs objects = time_audit\fR\m[]
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| 59 | \m[blue]\fBtime_audit: audit_timeout = 3000\fR\m[]
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| 60 | .fi
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| 61 | .if n \{\
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| 62 | .RE
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| 63 | .\}
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| 64 | .SH "VERSION"
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| 65 | .PP
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| 66 | This man page is correct for version 3\&.6\&.0 of the Samba suite\&.
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| 67 | .SH "AUTHOR"
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| 68 | .PP
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| 69 | 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\&.
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| 70 | .PP
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| 71 | The time_audit VFS module was created with contributions from Abhidnya Chirmule\&.
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