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Diffstat (limited to 'docs-xml/manpages-3/vfs_aio_linux.8.xml')
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diff --git a/docs-xml/manpages-3/vfs_aio_linux.8.xml b/docs-xml/manpages-3/vfs_aio_linux.8.xml deleted file mode 100644 index dac94a5794..0000000000 --- a/docs-xml/manpages-3/vfs_aio_linux.8.xml +++ /dev/null @@ -1,115 +0,0 @@ -<?xml version="1.0" encoding="iso-8859-1"?> -<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc"> -<refentry id="vfs_aio_linux.8"> - -<refmeta> - <refentrytitle>vfs_aio_linux</refentrytitle> - <manvolnum>8</manvolnum> - <refmiscinfo class="source">Samba</refmiscinfo> - <refmiscinfo class="manual">System Administration tools</refmiscinfo> - <refmiscinfo class="version">3.6</refmiscinfo> -</refmeta> - - -<refnamediv> - <refname>vfs_aio_linux</refname> - <refpurpose>implement async I/O in Samba vfs using Linux kernel aio calls</refpurpose> -</refnamediv> - -<refsynopsisdiv> - <cmdsynopsis> - <command>vfs objects = aio_linux</command> - </cmdsynopsis> -</refsynopsisdiv> - -<refsect1> - <title>DESCRIPTION</title> - - <para>This VFS module is part of the - <citerefentry><refentrytitle>samba</refentrytitle> - <manvolnum>7</manvolnum></citerefentry> suite.</para> - - <para>The <command>aio_linux</command> VFS module enables asynchronous - I/O for Samba on Linux kernels that have the kernel AIO calls available - without using the Posix AIO interface. Posix AIO can suffer from severe - limitations. For example, on some Linux versions the - real-time signals that it uses are broken under heavy load. - Other systems only allow AIO when special kernel modules are - loaded or only allow a certain system-wide amount of async - requests being scheduled. Systems based on glibc (most Linux - systems) only allow a single outstanding request per file - descriptor which essentially makes Posix AIO useless on systems - using the glibc implementation.</para> - - <para>To work around all these limitations, the aio_linux module - was written. It uses the Linux kernel AIO interface instead of the - internal Posix AIO interface to allow read and write calls - to be processed asynchronously. A queue size of 128 events - is used by default. To change this limit set the "aio num events" - parameter below. - </para> - - <para> - Note that the smb.conf parameters <command>aio read size</command> - and <command>aio write size</command> must also be set appropriately - for this module to be active. - </para> - - <para>This module MUST be listed last in any module stack as - the Samba VFS pread/pwrite interface is not thread-safe. This - module makes direct pread and pwrite system calls and does - NOT call the Samba VFS pread and pwrite interfaces.</para> - -</refsect1> - - -<refsect1> - <title>EXAMPLES</title> - - <para>Straight forward use:</para> - -<programlisting> - <smbconfsection name="[cooldata]"/> - <smbconfoption name="path">/data/ice</smbconfoption> - <smbconfoption name="aio read size">1024</smbconfoption> - <smbconfoption name="aio write size">1024</smbconfoption> - <smbconfoption name="vfs objects">aio_linux</smbconfoption> -</programlisting> - -</refsect1> - -<refsect1> - <title>OPTIONS</title> - - <variablelist> - - <varlistentry> - <term>aio_linux:aio num events = INTEGER</term> - <listitem> - <para>Set the maximum size of the event queue - that is used to limit outstanding IO requests. - </para> - <para>By default this is set to 128.</para> - </listitem> - </varlistentry> - - </variablelist> -</refsect1> -<refsect1> - <title>VERSION</title> - - <para>This man page is correct for version 3.6.6 of the Samba suite. - </para> -</refsect1> - -<refsect1> - <title>AUTHOR</title> - - <para>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.</para> - -</refsect1> - -</refentry> |