Reasons to use MySQL 5.5

June 28, 2011

There are a number of significant new features in MySQL 5.5 including semi-synchronous replication, SIGNAL and RESIGNAL, the PERFORMANCE_SCHEMA, additional STATUS variables, new partitioning options, different default storage engine, better UTF8 support and removal of deprecated functions just to list key considerations.

However some of the performance improvements are worth the investment of time. For a high concurrency InnoDB environment one new configuration alone can provide a 50% improvement in performance. Other settings can help in the reduction of downward spikes in performance due to internal InnoDB disk management. Some new configuration settings are off by default. See the actual benefits of these new features and what you should be using to maximize your database performance.

Presenter: Ronald Bradford
Schedule: Effective MySQL Meetup York. June 2011 New York

Better Indexes $ave You Money

March 24, 2011

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Presentation

Can database performance improvements be achieved with zero code changes? Learn how to use one simple advanced technique to make better MySQL indexes and improve your queries by 500% or more. Even with a highly indexed schema as shown in our 10 table join example, significant improvements in performance can be achieved.

This presentation introduces the approach for correct identification and verification of problem SQL statements and then describes the means of identifying index choices for optimization. Then discussed is not only how to apply indexes to improve query performance, but how to apply better indexes and provide even great performance gains.

This presentation includes:

6 steps to successful SQL review
Basic ways via application logging and TCP/IP analysis to capture SQL
All the commands necessary to identify why and how to create indexes
How the number of table rows and different storage engines can effect query performance
How to create an iterative verification process

Adding indexes is not the only approach nor the best approach to query optimization however learning how MySQL indexes work can provide quick improvements without the need to deploy code changes.

Presenter: Ronald Bradford
Schedule: Tuesday, March 22, 2011 in New York