OpenResty's Official Blog for Technologies & Products

OpenResty XRay Jul 23, 2026

OpenResty XRay Updated Jul 23, 2026 6 mins read

Why Your Rust Process Has High Disk I/O (and How to Find the Cause)

tutorial openresty-xray rust disk I/O

• Identifying the Rust process with high disk I/O
• Tracing the hottest Rust disk write code paths with flame graphs
• Automatic disk I/O analysis and reports
• What is OpenResty XRay
• Frequently Asked Questions

OpenResty XRay Jul 23, 2026

OpenResty XRay Updated Jul 23, 2026 5 mins read

How to Trace Rust Panics in Production Without Restarting

tutorial openresty-xray Rust Exceptions

• How to detect and analyze exceptions inside live Rust applications
• Automatic analysis and reports
• What is OpenResty XRay
• FAQ

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 2 mins read

Tested in Production: The Performance Impact of OpenResty XRay When Tracing Rust Applications

tutorial openresty-xray rust overhead

• Process Performance Before Running Analysis
• Performance Impact When the Analyzer is Running
• Impact Measurement on Throughput and Latency
• What is OpenResty XRay

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 6 mins read

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

tutorial openresty-xray cpu Sled Rust

• 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