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Karolin Autobuild-User(master): Karolin Seeger <kseeger@samba.org> Autobuild-Date(master): Tue Sep 11 12:37:17 CEST 2012 on sn-devel-104
102 lines
2.5 KiB
XML
102 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
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<refentry id="vfs_time_audit.8">
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<refmeta>
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<refentrytitle>vfs_time_audit</refentrytitle>
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<manvolnum>8</manvolnum>
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<refmiscinfo class="source">Samba</refmiscinfo>
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<refmiscinfo class="manual">System Administration tools</refmiscinfo>
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<refmiscinfo class="version">4.0</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>vfs_time_audit</refname>
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<refpurpose>samba vfs module to log slow VFS operations</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>vfs objects = time_audit</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>DESCRIPTION</title>
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<para>This VFS module is part of the
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<citerefentry><refentrytitle>samba</refentrytitle>
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<manvolnum>7</manvolnum></citerefentry> suite.</para>
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<para>The <command>time_audit</command> VFS module logs system calls
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that take longer than the number of milliseconds defined by the variable
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<command>time_audit:timeout</command>. It will log the calls and
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the time spent in it.
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</para>
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<para>It's kind of comparable with <command>strace -T</command> and
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is helpful to reveal performance problems with the underlying file
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and storage subsystems.</para>
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<para>This module is stackable.</para>
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</refsect1>
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<refsect1>
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<title>OPTIONS</title>
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<variablelist>
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<varlistentry>
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<term>time_audit:timeout = number of milliseconds</term>
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<listitem>
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<para>VFS calls that take longer than the defined number of milliseconds
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that should be logged. The default is 10000 (10s).
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>EXAMPLES</title>
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<para>This would log VFS calls that take longer than 3 seconds:</para>
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<programlisting>
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<smbconfsection name="[sample_share]"/>
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<smbconfoption name="path">/test/sample_share</smbconfoption>
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<smbconfoption name="vfs objects">time_audit</smbconfoption>
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<smbconfoption name="time_audit:timeout">3000</smbconfoption>
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</programlisting>
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</refsect1>
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<refsect1>
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<title>VERSION</title>
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<para>This man page is correct for version 4.0.0 of the Samba suite.
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</para>
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</refsect1>
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<refsect1>
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<title>AUTHOR</title>
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<para>The original Samba software and related utilities
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were created by Andrew Tridgell. Samba is now developed
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by the Samba Team as an Open Source project similar
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to the way the Linux kernel is developed.</para>
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<para>The time_audit VFS module was created with contributions from
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Abhidnya Chirmule.
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</para>
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</refsect1>
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</refentry>
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