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Best Practices for Debugging Slow APEX Pages

Utkarsh Ranjan3 days ago

Hi everyone,

I’m currently working on performance tuning for an Apex application and have come across a few pages that are noticeably slow to load especially those with multiple regions, interactive grids, and dynamic actions.

While I have used Apex Debug mode and checked for obvious backend issues I’m looking to understand how experienced developers approach this more systematically

Here are a few questions I’d love input on:

  1. What are your first steps when you notice a page is slow to load?
  2. Do you rely on APEX Debug, SQL tracing or browser developer tools?
  3. Have you found specific components (e.g. dynamic actions, plugins, PLSQL processes) to be common bottlenecks?
  4. Is there a way to measure or profile rendering time for each region or process?
  5. Any tools or practices you follow to optimize performance proactively?

Would really appreciate your suggestions and experience.

This post has been answered by Ed Jones-Oracle on Aug 3 2025
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