Featured Articles

Photo by Yichun Zhang
dynamic-tracing
...
openresty-xray bilibili
8 mins read

One String Value Crashed Asia's Biggest Streaming Site — We Found It with OpenResty XRay

One String Value Crashed Asia's Biggest Streaming Site — We Found It with OpenResty XRay

Binary Evidence-Driven Vulnerability Scanning: Eliminating False Positives with OpenResty XRay
security
...
vulnerability openresty-xray cve
9 mins read

Binary Evidence-Driven Vulnerability Scanning: Eliminating False Positives with OpenResty XRay

Binary Evidence-Driven Vulnerability Scanning: Eliminating False Positives with OpenResty XRay

Introduction to OpenResty XRay
openresty-xray
...
nginx
6 mins read

Introduction to OpenResty XRay

Introduction to OpenResty XRay

Anatomy of a 15x Performance Drop: A 90k to 6k QPS Root Cause Analysis with OpenResty XRay
openresty-xray
...
casestudy lua nginx off-cpu
3 mins read

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

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

Building a Non-Invasive Java Function Profiler with OpenResty XRay
openresty-xray
...
java probe
4 mins read

Building a Non-Invasive Java Function Profiler with OpenResty XRay

Building a Non-Invasive Java Function Profiler with OpenResty XRay

Photo by Philip Brown
dynamic-tracing
...
openresty-xray
26 mins read

The Wonderland of Dynamic Tracing (Part 1 of 3)

The Wonderland of Dynamic Tracing (Part 1 of 3)

Photo by Jose G. Ortega Castro
nginx
...
openresty memory openresty-xray dynamic-tracing
13 mins read

How OpenResty and Nginx Shared Memory Zones Consume RAM

How OpenResty and Nginx Shared Memory Zones Consume RAM

Photo by Harrison Broadbent
nginx
...
openresty memory luajit openresty-xray dynamic-tracing
11 mins read

How OpenResty and Nginx Allocate and Manage Memory

How OpenResty and Nginx Allocate and Manage Memory

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OpenResty XRay Jun 17, 2025

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OpenResty XRay Jun 17, 2025

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Find the largest Python objects or values taking the most RAM (using OpenResty XRay)

tutorial openresty-xray python memory
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OpenResty XRay Jun 17, 2025

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tutorial openresty-xray cpu Sled Rust
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  • Automatic analysis and reports
  • What is OpenResty XRay
  • Problem: high CPU usage
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How CPU time is spent inside Go's etcd server (using OpenResty XRay)

tutorial openresty-xray go cpu etcd
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How CPU time is spent inside llama.cpp + LLaMA2 (using OpenResty XRay)

tutorial openresty-xray LLM cpu generative-AI llama2 llama.cpp profiling AI
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  • Automatic analysis and reports
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tutorial openresty-xray go cpu
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Pinpointing the blocking Python code paths (using OpenResty XRay)

tutorial openresty-xray python off-cpu
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Pinpointing hottest Perl code paths (using OpenResty XRay)

tutorial openresty-xray perl cpu
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