Coldfusion MX Tuning

For many ColdFusion developers, server setup, tuning, troubleshooting and configuration is one of the least understood areas of ColdFusion. Achieving the highest possible performance and scalability with a ColdFusion MX application is a complex combination of many different factors. Standard performance tuning guidelines in conjunction with the tips provided below should allow you to achieve maximum application performance and scalability.

Performance refers to the response time of requests to CFML pages and Components (CFCs), whilst scalability refers to how the performance results change when the load on the server increases.

Factors Affecting Performance

• Hardware and software configuration
• Database and other external system requests
• Web server performance
• CFML application

Macromedia

• JRun 4.0: Configuring individual JVM settings for each JRun Server
• The Moment of Truth: Tuning Performance in JRun Apps and Environment
• JRun 4: General troubleshooting techniques for an unresponsive JRun server
• ColdFusion MX: Explanation of Request Timeout and threadWaitTimeout settings
• Server settings: the jrun.xml file
• ColdFusion MX: Tips for performance and scalability

Sun

• Frequently Asked Questions about Garbage Collection in the HotspotTM JavaTM Virtual Machine
• Tuning Garbage Collection with the 1.4.2 Java[tm] Virtual Machine
• Java Tuning White Paper
• jvmstat 3.0

Brandon Purcell

• ColdFusion Peformance Tuning Presentation
• Obtaining a Thread Dump with ColdFusion or JRun running as a Windows Service
• JRun Connection Closed Errors
• Performance Tuning and Monitoring Coldfusion or JRun
• Java Thread and How does it work?
• Advanced Debugging In JRun 4

Steven Erat

• Steven Erat’s blog: activeHandlerThreads or Simultaneous Requests: Less is More
• Simultaneous Requests in CFMX 7
• Keep Library Loaded - Check this box to retain the library in RAM
• SeeStack - Parse ColdFusion Thread Dumps Like a Pro!
• Request timed out waiting for an available thread to run
• Troubleshooting Tips For ColdFusion MX
• Help! My ColdFusion MX Server is Slow!!!!

Peter Freitag

• Peter Freitag’s blog: Tuning Garbage Collection Outline
• ColdFusion Garbage
• ColdFusion Memory Usage Stats
• Getting ColdFusion Server Metrics
• Have you tuned your JVM on ColdFusion MX yet?

Daemon

• Daemonite blog: Maximum JVM heap size for CFMX
• Enhancing CFMX logging

Others

• CFMX JVM Tuning - The difference between MaxPermSize and Heap Size
• Sarge’s blog: CFMX Performance Settings (JRun 50% CPU thread)
• Robi Sen’s blog: Hung Servers, Java.lang.OutOFMemory errors and Tuning CF JVM
• Misc: Java Garbage Collection Tuning
• Java Performance Tuning
• SeeFusion :: ColdFusion Server Monitoring