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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

openresty-xray casestudy lua nginx off-cpu
  • 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
  • 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 Open Source Dec 17, 2025

OpenResty Open Source Updated Dec 17, 2025 5 mins read

Implementing Cluster-Wide TLS Rotation Without Restarts

nginx lua openresty TSL
  • The Hidden Fragility of TLS
  • Moving from Manual Hacks to Systemic Resilience
  • Quantifying Latency Reduction and Uptime Gains
  • The Hidden Fragility of TLS
  • Moving from Manual Hacks to Systemic Resilience
  • Quantifying Latency Reduction and Uptime Gains

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
  • 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 May 23, 2025

OpenResty XRay Updated May 23, 2025 9 mins read

UDB + OpenResty XRay: Unlocking the Mystery of OpenResty Application Performance

openresty-xray undo lua udb
  • How OpenResty XRay Enhances Efficiency with UDB
  • Hands-On: Analyzing OpenResty Lua Call Stacks with UDB and OpenResty XRay
  • Advantages of Time-Travel Debugging
  • Summary
  • How OpenResty XRay Enhances Efficiency with UDB
  • Hands-On: Analyzing OpenResty Lua Call Stacks with UDB and OpenResty XRay
  • Advantages of Time-Travel Debugging
  • Summary

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Call Lua modules by Edgelang in OpenResty Edge

tutorial openresty-edge Lua Edgelang
  • Create a Lua module in OpenResty Edge
  • Call the Lua module in an HTTP application of OpenResty Edge
  • Verify the effect of calling the Lua module
  • What is OpenResty Edge
  • Create a Lua module in OpenResty Edge
  • Call the Lua module in an HTTP application of OpenResty Edge
  • Verify the effect of calling the Lua module
  • What is OpenResty Edge

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 9 mins read

Listing Loaded Lua Modules in OpenResty or Nginx Processes

ylua openresty-xray openresty nginx lua dynamic-tracing
  • System Environment
  • Names of Loaded Lua Modules
  • Running Directly in the Web Console
  • Tracing Applications inside Containers
  • How The Tools are Implemented
  • The Overhead of the Tools
Photo by Yichun Zhang
  • System Environment
  • Names of Loaded Lua Modules
  • Running Directly in the Web Console
  • Tracing Applications inside Containers
  • How The Tools are Implemented
  • The Overhead of the Tools
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