OpenResty Private Libraries: High-Performance Lua & Nginx Modules
- The Full Catalog
- What’s Inside, by Scenario
- How Licensing Works
- FAQ
- The Full Catalog
- What’s Inside, by Scenario
- How Licensing Works
- FAQ
β Back
Lua
lua-cjson Too Slow? jit.cjson Speeds Up JSON Encoding in OpenResty 18x
- Where Exactly Is the Performance Ceiling?
- Common Workaround Strategies and Their Limitations
- Why Custom Development or Hacking Existing Libraries is a Bad Idea
- Seeking a More Direct Breakthrough
- Infrastructure-Level Optimization:
jit.cjson - Why the Official Solution is the Safer Bet
- Minimal Adoption Cost
- Where Exactly Is the Performance Ceiling?
- Common Workaround Strategies and Their Limitations
- Why Custom Development or Hacking Existing Libraries is a Bad Idea
- Seeking a More Direct Breakthrough
- Infrastructure-Level Optimization:
jit.cjson - Why the Official Solution is the Safer Bet
- Minimal Adoption Cost
Minify HTML, CSS & JS Inside Nginx: OpenResty's 120 MB/s Streaming Minifiers
- When You Can’t Touch the Build Pipeline
- Why a Regex Won’t Cut It
- Three Approaches That Almost Work
- A Streaming FSM for Each Language, Compiled to Native Code
- Five-Minute Setup: A Configuration Example
- Four Things to Know Before Going Live
- When You Can’t Touch the Build Pipeline
- Why a Regex Won’t Cut It
- Three Approaches That Almost Work
- A Streaming FSM for Each Language, Compiled to Native Code
- Five-Minute Setup: A Configuration Example
- Four Things to Know Before Going Live
lua-resty-kafka Blocking Your Nginx Workers? Meet lua-resty-kafka-fast
- Three Common Anti-Patterns We See in Production
- What is
lua-resty-kafka-fast - lua-resty-kafka vs lua-resty-kafka-fast
- What This Changes at the Architecture Level
- FAQ
- Three Common Anti-Patterns We See in Production
- What is
lua-resty-kafka-fast - lua-resty-kafka vs lua-resty-kafka-fast
- What This Changes at the Architecture Level
- FAQ
Nginx Reverse Proxy QPS Dropped 15x: A Missing upstream keepalive and an -O0 Debug Build
- A 15x Slower Nginx Reverse Proxy β and No Errors in the Logs
- Flame Graphs Expose a Connection Storm: The Missing upstream keepalive
- The Remaining 10% Gap: Baseline Comparison Points to the Compiler
- How an -O0 Debug Build Cost Us 10% of Performance
- A 15x Slower Nginx Reverse Proxy β and No Errors in the Logs
- Flame Graphs Expose a Connection Storm: The Missing upstream keepalive
- The Remaining 10% Gap: Baseline Comparison Points to the Compiler
- How an -O0 Debug Build Cost Us 10% of Performance
TLS Session Resumption in Nginx Clusters: Zero-Downtime Key Rotation
- Why Session Ticket Key Management Is Harder Than It Looks
- How lua-resty-tls-session Rotates Session Ticket Keys Without Restarts
- Comparing the Three Approaches
- Quantifying Latency Reduction and Uptime Gains
- FAQ
- Why Session Ticket Key Management Is Harder Than It Looks
- How lua-resty-tls-session Rotates Session Ticket Keys Without Restarts
- Comparing the Three Approaches
- Quantifying Latency Reduction and Uptime Gains
- FAQ
The Nginx Worker That Refused to Serve More Than 300 RPS: Traced to a 75ms Event-Loop Block
- High Load but No Useful Work: CPU Contention from a Missing worker_cpu_affinity
- How Blocking Lua I/O Calls Halted the Nginx Event Loop
- Measuring File I/O Latency: Up to 1.5ms per Call
- How Bad Was the Nginx Event-Loop Blocking? 43,952 Samples, a 75ms Worst Case
- Frequently Asked Questions
- High Load but No Useful Work: CPU Contention from a Missing worker_cpu_affinity
- How Blocking Lua I/O Calls Halted the Nginx Event Loop
- Measuring File I/O Latency: Up to 1.5ms per Call
- How Bad Was the Nginx Event-Loop Blocking? 43,952 Samples, a 75ms Worst Case
- Frequently Asked Questions
UDB + OpenResty XRay: Unlocking the Mystery of OpenResty Application Performance
- 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
Use Lua Extensions to Respond to Gateway Server Offline Events in OpenResty Edge
- Create a new Lua extension
- Trigger the Lua extension with an offline gateway server
- What is OpenResty Edge
- Create a new Lua extension
- Trigger the Lua extension with an offline gateway server
- What is OpenResty Edge
Call Lua modules by Edgelang in 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
- 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
Pinpointing hottest Lua code paths in online OpenResty/Nginx servers (using OpenResty XRay)
- Problem: high CPU usage
- Use the guidede analysis feature of OpenResty XRay to spot the hottest Lua code paths
- Automatic analysis and reports
- Problem: high CPU usage
- Use the guidede analysis feature of OpenResty XRay to spot the hottest Lua code paths
- Automatic analysis and reports
How we solved a CPU bottleneck caused by Lua exceptions in a custom Kong plugin (using OpenResty XRay)
- The problem: high CPU usage in Kong servers
- The analysis & report
- The result: improved performance and reduced CPU usage
- The problem: high CPU usage in Kong servers
- The analysis & report
- The result: improved performance and reduced CPU usage
Memory and CPU usage statistics among Kong plugins online (using OpenResty XRay)
- CPU usage among all Kong plugins in a server process
- Memory usage among all Kong plugins in a server process
- Extra overhead for the servers
- CPU usage among all Kong plugins in a server process
- Memory usage among all Kong plugins in a server process
- Extra overhead for the servers
Lua io.popen Blocks Nginx's Event Loop: A 150x Throughput Fix
- The Problem: 130 req/sec
- How OpenResty XRay Found the Blocking
- Nonblocking Alternatives to io.popen
- Results: 7x and 150x
- FAQ
- The Problem: 130 req/sec
- How OpenResty XRay Found the Blocking
- Nonblocking Alternatives to io.popen
- Results: 7x and 150x
- FAQ
Listing Loaded Lua Modules in OpenResty or Nginx Processes
- 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
- 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
Introduction to Lua-Land CPU Flame Graphs
- What is a Flame Graph
- Simple Lua samples
- Complicated Lua applications
- Sampling overhead
- Safety
- Compatibility
- Other types of Lua-land Flame Graphs
- What is a Flame Graph
- Simple Lua samples
- Complicated Lua applications
- Sampling overhead
- Safety
- Compatibility
- Other types of Lua-land Flame Graphs