https://www.dotdeb.org/tags/mysql-5.4/Recent content in Mysql-5.4 on DotdebHugo -- 0.168.0en-USWed, 22 Apr 2009 23:45:45 +0000https://www.dotdeb.org/2009/04/23/what-to-expect-from-mysql-54/Wed, 22 Apr 2009 23:45:45 +0000http://localhost:8080/?p=218<p>MySQL 5.4 has been announced at the opening session of <a href="http://www.mysqlconf.com/mysql2009/">MySQL Conference 2009</a> and a preview is <a href="http://dev.mysql.com/downloads/mysql/5.4.html">available for download</a>. This release may look as a compromise between the current 5.1 and the major 6.0 branches, but it includes many (IMHO needed) improvements :</p> <ul> <li>Sub-query optimizations</li> <li>A new query algorythms</li> <li>Replication killer features : replication heartbeat and semi-synchronous replication!</li> <li>Google SMP patch (even for Solaris x86 and Sparc) and IO patches</li> <li>Update of many antiquated defaults in the <strong>MySQL</strong> Server (like replication-related &ndash;master-host and so on&hellip;)</li> <li>InnoDB improvements (such as scalability up to 16way x86 and up to 64way CMT servers)</li> <li>A couple of performance fixes backported from 6.0</li> <li>Dtrace integration on supported OSes</li> </ul> <p>The results? 59% faster than 5.1, 40% improvement in read/write test, 71% throughput increase!</p>