Vladimir Kolesnikov

<p>Almost every developer knowns that the poor performance in many cases is due to poorly designed database or SQL queries<br />
(for example, when the table does not have indices that the query can use or when the query uses unnecessary<br />
performance killers such as ORDER BY/GROUP BY).</p>
<p>WordPress can provide only the list of the queries and the developer has to manually run every query and analyze it.<br />
Very boring, isn’t it? SQLMon tries to help the developers and analyzes the query itself, reporting everything that needs attention.</p>
<p>Every query passed to WordPress is analyzed (using EXPLAIN) and the results are shown in the theme’s footer or Admin panel’s footer<br />
(they are visible to site administrators only — this allows to use SQLMon even on live sites).</p>
<p>One of the key features of SQLMon is that it can run EXPLAIN not only on SELECT queries but also on UPDATE/DELETE and INSERT/REPLACE INTO … AS or<br />
CREATE TABLE … AS.</p>
<p>The plugin is perfect for WordPress developers, plugin and theme authors and site administrators who are trying to find out why the blog is too slow.</p>
<p><strong>IMPORTANT:</strong> the project has moved to <a href="https://launchpad.net/wp-plugin-sqlmon" rel="nofollow ugc">Launchpad</a>, please use it to report all bugs, suggest improvements,<br />
request features and get the latest development version.</p>
<h3>Warning</h3>
<p>This plugins requires that PHP 5 be installed.<br />
No support for ancient PHP 4, sorry.</p>
<h3>Incompatibilities</h3>
<p>SQLMon is incompatible with plugins that install their own <code>db.php</code> into <code>wp-content</code> directory (DB Cache, DB Cache Reloaded, probably W3 Total Cache).</p>
<h3>Removal</h3>
<p>If you want to remove the plugin completely, please deactivate it first and make sure that <code>wp-content/db.php</code> is deleted (if not, please delete it yourself).</p>
<h3>Recommended Reading</h3>
<p><a href="http://dev.mysql.com/doc/refman/5.1/en/using-explain.html" rel="nofollow ugc">Optimizing Queries with EXPLAIN</a></p>
<h3>Bug Reports</h3>
<p>Please use <a href="https://bugs.launchpad.net/wp-plugin-sqlmon" rel="nofollow ugc">Launchpad</a> to report any bugs.</p>


SQL Monitor

Almost every developer knowns that the poor performance in many cases is due to poorly designed database or SQL queries

sevenspark

<p>The new accessibility javascript in the Appearance > Menus panel in WordPress 3.6 can significantly slow the page load speed when using a large number of menu items (> 50).  This plugin defers the accessibility processing to eliminate the scripting bottleneck and allow the Appearance > Menus screen to run much faster and more responsively.</p>
<p><a href="http://sevenspark.com/wordpress/speeding-up-the-appearance-menus-screen-in-wordpress-3-6" rel="nofollow ugc">Full details</a></p>
<p>This solution is fairly rough.  Hopefully we can develop a robust solution that can eventually become part of the core.  Pull requests through GitHub are welcome.</p>


SQL Monitor vs Faster Appearance – Menus