OpenResty 1.27.1.1 Released
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Openresty
OpenResty 1.25.3.1 Released
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OpenResty 1.21.4.2 Released
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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
Troubleshooting the extra 200-ms request latency online
- The Problem
- The Analsysis Process
- Fully-automated analysis
- What is OpenResty XRay
- The Problem
- The Analsysis Process
- Fully-automated analysis
- What is OpenResty XRay
EdgeLang: A Powerful and Efficient Language for Gateway Logic
- Introduction to Edgelang
- Benefits of Edgelang
- Edgelang in Edge Admin
- Introduction to Edgelang
- Benefits of Edgelang
- Edgelang in Edge Admin
Pinpointing leaked Lua tables with OpenResty XRay's command-line tools
- How LuaJIT manages memory
- OpenResty XRay’s command-line tools
- An leaking example
- Analysis procedure
- lj-gco-ref analyzer
- Fully-automated analysis
- How LuaJIT manages memory
- OpenResty XRay’s command-line tools
- An leaking example
- Analysis procedure
- lj-gco-ref analyzer
- Fully-automated analysis
Real-Time Request Counting against Nginx Processes via YSQL
- How to install the run-ysql tool
- Count total requests served in real time
- Filter out specific requests
- Using YSQL in the Web Console
- True non-invasive tracing
- How to install the run-ysql tool
- Count total requests served in real time
- Filter out specific requests
- Using YSQL in the Web Console
- True non-invasive tracing
OpenResty 1.21.4.2 RC1 is out
- Source package
- Windows binary packages
- Version highlights
- Source package
- Windows binary packages
- Version highlights
When Lua IPC Pipes Block OpenResty or Nginx's Event Loops
- The Problem
- Analyses
- Solutions
- Results
- The Problem
- Analyses
- Solutions
- Results
Optimize Memory Fragmentation due to Huge Nginx Configuration
- Challenges
- Analyses
- Solutions
- Results
- Challenges
- Analyses
- Solutions
- Results
Tracing the Slowest PCRE Regular Expressions in OpenResty or Nginx Processes
- System Environment
- Narrowing Down the Culprit without Guessing
- Limiting the execution overhead of PCRE
- Non-Backtracking Regular Expression Engines
- Lua’s Builtin Patterns
- Tracing Applications inside Containers
- How The Tools are Implemented
- The Overhead of the Tools
- System Environment
- Narrowing Down the Culprit without Guessing
- Limiting the execution overhead of PCRE
- Non-Backtracking Regular Expression Engines
- Lua’s Builtin Patterns
- Tracing Applications inside Containers
- How The Tools are Implemented
- The Overhead of the Tools
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
Analyzing the Most CPU-Consuming Requests in OpenResty or Nginx
- System Environment
- CPU-Hottest Request Hostnames
- CPU-Hottest Request URIs
- Digging Deeper
- Running Directly in the Web Console
- Tracing Applications inside Containers
- How The Tools are Implemented
- The Overhead of the Tools
- System Environment
- CPU-Hottest Request Hostnames
- CPU-Hottest Request URIs
- Digging Deeper
- Running Directly in the Web Console
- Tracing Applications inside Containers
- How The Tools are Implemented
- The Overhead of the Tools
Official OpenResty Debian 11 package repo
OpenResty 1.19.9.1 released
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- Alpine 3.14 official release
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- Full Changelog
- Alpine 3.14 official release
OpenResty 1.19.9.1 RC1 is out
- Source package
- Windows binary packages
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- Source package
- Windows binary packages
- Version highlights
OpenResty 1.19.3.2 released
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- Full Change logs
- Version highlights
- Full Change logs
Official OpenResty Fedora 34 & Alpine 3.13 pkg repo
- Fedora 34
- Alpine 3.13
- Fedora 34
- Alpine 3.13
Official OpenResty Aarch64/ARM64 pkg repo
- Ubuntu 18.04/20.04
- Debian 9/10
- CentOS/RHEL 7/8，Fedora 32/33
- Ubuntu 18.04/20.04
- Debian 9/10
- CentOS/RHEL 7/8，Fedora 32/33
Install OpenResty on Ubuntu 20.04 via apt-get
Streaming HTTP Response Output in OpenResty
Precompile Lua Modules into LuaJIT Bytecode to Speedup OpenResty Startup
Timing Lua Code Correctly in OpenResty
Lookup OpenResty Documentation on Terminal with restydoc
Share Data Across Requests Served by OpenResty
Install OpenResty on CentOS 8 via dnf
The resty Command-Line Utility Demo
Write Your Own Lua Modules for OpenResty Applications
Hello World HTTP Example in OpenResty
OpenResty 1.19.3.1 released
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
Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones
- An empty zone
- Filling entries of similar sizes
- Deleting odd-numbered keys
- Deleting the keys in the first half
- Mitigating Fragmentation
- An empty zone
- Filling entries of similar sizes
- Deleting odd-numbered keys
- Deleting the keys in the first half
- Mitigating Fragmentation
How OpenResty and Nginx Shared Memory Zones Consume RAM
- Slabs and pages
- What is allocated is not what is paid for
- Fake Memory Leaks
- HUP reload
- Slabs and pages
- What is allocated is not what is paid for
- Fake Memory Leaks
- HUP reload
OpenResty 1.17.8.1 released
- OpenResty 1.17.8.1 released
- Full Changelog
- The Next Release
- OpenResty 1.17.8.1 released
- Full Changelog
- The Next Release
OpenResty 1.15.8.3 + OpenResty 1.17.8.1 RC1 released
- Full Changelog
- The Next Release
- Full Changelog
- The Next Release
How OpenResty and Nginx Allocate and Manage Memory
- On The System Level
- On The Application Level
- For Traditional Nginx Servers
- On The System Level
- On The Application Level
- For Traditional Nginx Servers
The LuaJIT GC64 Mode
- The Old Memory Limit
- When Hitting The Memory Limit
- The Memory Limit Is Per Process
- GC-Managed Memory
- Memory Allocated Outside GC
- Extending The x64 Mode to The 4 GB Limit
- The New GC64 Mode
- How to Enable The GC64 Mode
- Performance Impact
- Debugging and Profiling Tool Chains
- The Old Memory Limit
- When Hitting The Memory Limit
- The Memory Limit Is Per Process
- GC-Managed Memory
- Memory Allocated Outside GC
- Extending The x64 Mode to The 4 GB Limit
- The New GC64 Mode
- How to Enable The GC64 Mode
- Performance Impact
- Debugging and Profiling Tool Chains
