OpenResty XRay Dec 23, 2025

OpenResty XRay Updated Dec 23, 2025 3 mins read

Anatomy of a 15x Performance Drop: A 90k to 6k QPS Root Cause Analysis with OpenResty XRay

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• The 93% Performance Drop: Uncovering the Observability Blind Spot
• OpenResty XRay Uncovers Connection Reuse Issues
• Comparative Analysis Reveals Compilation Option Issues
• Impact of Compiler Options on Instruction Execution Performance

OpenResty XRay Sep 2, 2025

OpenResty XRay Updated Sep 2, 2025 8 mins read

Application Lagging? OpenResty XRay: Instantly Uncover the Truth Behind 75ms Blockages

openresty-xray casestudy lua nginx off-cpu

• Unraveling Performance Puzzles: CPU Resource Contention Comes to Light
• The Real Culprit Revealed: Blocking Lua I/O Operations
• Quantitative Analysis: The Impact of File IO Performance
• Deep Dive: Understanding Event Loop Blocking in Nginx

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 6 mins read

Find Blocking Perl Code Paths Holding back CPU Usage (Using OpenResty XRay)

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• Problem: low CPU usage
• Use the guided analysis feature of OpenResty XRay to spot the blocking Perl code paths
• Automatic analysis and reports
• What is OpenResty XRay
• About The Author

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Pinpointing the blocking Python code paths (using OpenResty XRay)

tutorial openresty-xray python off-cpu

• Problem: low CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the blocking Python code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Apr 6, 2026

OpenResty XRay Updated Apr 6, 2026 6 mins read

When Lua IPC Pipes Block OpenResty or Nginx's Event Loops

openresty-xray nginx lua off-cpu

• The Problem
• Analyses
• Solutions
• Results