https://www.justincarmony.com/tags/performance-tuning/ Recent content in Performance Tuning on Justin Carmony Hugo en-us Wed, 02 Feb 2011 07:12:35 +0000 https://www.justincarmony.com/2011/02/02/mysql-stored-procedure-name_const-and-character-sets/ Wed, 02 Feb 2011 07:12:35 +0000 https://www.justincarmony.com/2011/02/02/mysql-stored-procedure-name_const-and-character-sets/ <p><a href="https://www.justincarmony.com/images/wp/2011/02/mysql_logo.gif"><img src="https://www.justincarmony.com/images/wp/2011/02/mysql_logo.gif" alt="" title="mysql_logo"></a>For a Project I had helped work on, they recently needed to move servers and in the process upgraded from MySQL 5.0 to MySQL 5.1.41. They ran into some quirks with 5.1 and I thought I would document our work-a-rounds for them.</p> <p>We were having serious performance problems with a Stored Procedure that would be called by a Windows Client on thousands of machines. Before on 5.0 it would take under 0.02 seconds, and now it was taking 25-35 seconds. In this stored procedure we would call a query something like this:</p>