Why Was Our Rails App Fast Locally but Painfully Slow in Production?

📰 Medium · Programming

Learn why a Rails app can be fast locally but slow in production and how to identify the root cause of the issue

intermediate Published 12 Apr 2026
Action Steps
  1. Run benchmarks locally and in production to compare performance
  2. Use tools like New Relic or Datadog to monitor application performance and identify bottlenecks
  3. Configure and optimize database queries and connections
  4. Apply caching mechanisms to reduce database load
  5. Test and analyze the impact of external services on application performance
Who Needs to Know This

Developers and DevOps teams can benefit from this article to troubleshoot and optimize the performance of their Rails applications

Key Insight

💡 The same code and database can behave differently in local and production environments due to various factors such as database connections, caching, and external services

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💡 Did you know your Rails app can be fast locally but slow in production? Learn how to identify and fix the root cause of the issue!
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