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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@351292 c90b9560-bf6c-de11-be94-00142212c4b1
94 lines
2.8 KiB
XML
94 lines
2.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect1 xml:id="opcache.installation" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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&reftitle.install;
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<para>
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OPcache can only be compiled as a shared extension. If you have
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disabled the building of default extensions with
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<option role="configure">--disable-all</option>, you must compile PHP with
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the <option role="configure">--enable-opcache</option> option for OPcache
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to be available.
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</para>
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<para>
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Once compiled, you can use the
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<link linkend="ini.zend-extension">zend_extension</link> configuration
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directive to load the OPcache extension into PHP. This can be done with
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<literal>zend_extension=/full/path/to/opcache.so</literal> on non-Windows
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platforms, and <literal>zend_extension=C:\path\to\php_opcache.dll</literal>
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on Windows.
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</para>
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<note>
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<para>
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If you want to use OPcache with
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<link xlink:href="&url.xdebug;">Xdebug</link>, you must load OPcache before
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Xdebug.
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</para>
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</note>
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<sect2 xml:id="opcache.installation.recommended">
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<title>Recommended php.ini settings</title>
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<para>
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The following settings are generally recommended as providing good
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performance:
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</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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opcache.memory_consumption=128
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opcache.interned_strings_buffer=8
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opcache.max_accelerated_files=4000
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opcache.revalidate_freq=60
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opcache.fast_shutdown=1
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opcache.enable_cli=1
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]]>
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</programlisting>
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</informalexample>
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<para>
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You may also want to consider disabling
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<link linkend="ini.opcache.save-comments">opcache.save_comments</link>
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and enabling
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<link linkend="ini.opcache.enable-file-override">opcache.enable_file_override</link>,
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however note that you will have to test your code before using these in
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production as they are known to break some frameworks and applications,
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particularly in cases where documentation comment annotations are used.
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</para>
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<para>
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On Windows, <link linkend="ini.opcache.file-cache-fallback">opcache.file_cache_fallback</link>
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should be enabled, and <link linkend="ini.opcache.file-cache">opcache.file_cache</link>
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should be set to an already existing and writable directory.
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</para>
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<para>
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A full list of configuration directives supported by OPcache
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<link linkend="opcache.configuration">is also available</link>.
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</para>
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</sect2>
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</sect1>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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