Using Trace API to diagnose performance bottlenecks on production servers
Nikolay Samofatov, Chief Technology Officer
RED SOFT CORPORATION
Situation: performance of a production instance of your application is unacceptable
• What are the causes of the performance problem?
• You have made some changes to remedy for problem. How the changes in the application and/or database have really affected the performance?
• How do you prove to the client that the performance has indeed improved?
To answer these questions you need the performance measurement toolset
• Detect and flag obvious performance issues on the fly
• Collect and save performance data for further analysis and comparison
• Analyze production server under load without hurting its performance and reliability
Is there a solution for these challenges for Firebird?
Yes, and this is Trace API !
• Server-side instrumentation framework designed to minimize the impact on a running serverAvailable in Red Database, BroadView branch of Firebird and
for other Firebird users in a form of patch against Firebird 2.0
• Functionality to detect performance issues on the flyText format trace logs and event filtering rules
• Functionality to capture and store detailed performance statisticsBinary format trace logs and tools for analysing them. Red Soft
has the necessary tools to support its own consulting practice, however third-party tools developers are encouraged to take action
Binary trace logs can be used to answer important performance questions
• Simple questions• What are the heaviest queries during the day?
• What are the longest transactions?
• More complex issues• Which indices in the database are never used?
• What are the tables with the most activity?
• Some questions that can be answered with the help of context variables and the applications support• What are the maximum and average response times for the user?
• Which functions of an application consume the most of resources and are worth optimizing?
Tools development roadmap
• Load the collected performance data into a database for off-line analysis
• Asynchronously screen the performance logs for problems
• Create own implementations for Trace API plug-ins
Questions and Contacts
RED SOFT CORPORATION
www.red-soft.biz
Nikolay Samofatov, Chief Technology Officer
Office Phone: +7 495 721 35 37
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