OpenResty XRay Feb 18, 2025

OpenResty XRay Updated Feb 18, 2025 9 mins read

Analyzing CPU, off-CPU and Disk I/O Usage of Java Applications (Using OpenResty XRay)

• High CPU usage issues in Java applications
• CPU blocking issues in Java applications
• High disk I/O issues in Java applications
• Supported Java versions and operating systems
• Performance impact and overhead
• Future plans

OpenResty XRay Apr 1, 2024

OpenResty XRay Updated Apr 1, 2024 6 mins read

Pinpointing the hottest Erlang code paths with high CPU usage (using OpenResty XRay)

• Problem: high CPU usage
• Spot the CPU-hottest Erlang code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Feb 27, 2024

OpenResty XRay Updated Feb 27, 2024 6 mins read

How CPU Time is Spent inside Envoy Servers (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the most CPU-intensive C++ code paths inside Envoy Servers
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Feb 27, 2024

OpenResty XRay Updated Feb 27, 2024 5 mins read

Pinpointing the hottest PHP code paths with high CPU usage (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the CPU-hottest PHP code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Feb 1, 2024

OpenResty XRay Updated Feb 1, 2024 5 mins read

How CPU Time is Spent inside Go’s CockroachDB (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the most CPU-intensive Go code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 20, 2023

OpenResty XRay Updated Nov 20, 2023 6 mins read

How CPU time is spent inside Rust’s Sled library (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the most CPU-intensive Rust code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 6 mins read

How CPU time is spent inside Go's etcd server (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the hottest Go code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 6 mins read

How CPU time is spent inside llama.cpp + LLaMA2 (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the hottest C++ code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 5 mins read

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

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

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 5 mins read

Pinpointing the hottest Go code paths with high CPU usage (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the hottest Go code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 5 mins read

Pinpointing hottest Perl code paths (using OpenResty XRay)

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the hottest Perl code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Nov 1, 2023

OpenResty XRay Updated Nov 1, 2023 5 mins read

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

OpenResty XRay Aug 28, 2023

OpenResty XRay Updated Aug 28, 2023 5 mins read

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

OpenResty XRay Jul 15, 2023

OpenResty XRay Updated Jul 15, 2023 7 mins read

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

OpenResty XRay Apr 10, 2024

OpenResty XRay Updated Apr 10, 2024 12 mins read

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

OpenResty XRay Apr 10, 2024

OpenResty XRay Updated Apr 10, 2024 19 mins read

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