OpenResty's Official Blog for Technologies & Products

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 6 mins read

How to Trace PHP Exceptions in Production Without Restarting

tutorial openresty-xray php exceptions

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

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 5 mins read

PHP Memory Profiler: Locate the Largest Memory Objects in a Live PHP Process

tutorial openresty-xray php memory

• Symptom: a PHP process using high memory in top
• Profile the process with OpenResty XRay guided analysis to find the largest PHP objects
• Trace the largest object back to its source line
• Monitor PHP process memory automatically with Insights reports
• FAQ
• What is OpenResty XRay

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 7 mins read

PHP High CPU Usage: Find the Hottest Code Path with OpenResty XRay

tutorial openresty-xray php cpu flame-graph profiling

• Problem: high CPU usage
• Find which PHP function is using the CPU with OpenResty XRay Guided Analysis
• Read the CPU flame graph and the hottest PHP and C code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 9 mins read

Laravel High CPU Usage: Why Even Hello World Burns Half Its CPU

tutorial openresty-xray laravel php

• Why Laravel uses high CPU even in hello world apps
• Laravel CPU profiling: the three hottest code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 3 mins read

Performance Impact of OpenResty XRay when Tracing PHP Apps

tutorial openresty-xray php overhead

• What Happens to CPU, Memory, and Load During Profiling?
• How Much Does Profiling Affect Throughput and Latency?
• OpenResty XRay vs. Always-On APM Agents
• FAQ