Analyzer openresty-new-timer-fgraph

# Name

openresty-new-timer-fgraph - Openresty New Timer Flamegraph

This analyzer profiles timer creation operations in Lua-land code within OpenResty and Kong applications. It captures stack traces when new timers are created via ngx.timer.at or ngx.timer.every APIs, generating flame graphs that visualize the call paths leading to timer creation. The analyzer helps identify excessive timer creation patterns and understand timer usage across the application codebase.

# Resource Category

CPU.

# Application Type & Technical Stack

• OpenResty
• Kong
• APISIX

# Command Line Syntax

The analyzer can be invoked directly on the command-line via the orxray utility from the openresty-xray-cli software package.

Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).

# PID is the target process PID.
orxray analyzer run openresty-new-timer-fgraph -p PID

# trace a shell command directly
orxray analyzer run openresty-new-timer-fgraph -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run openresty-new-timer-fgraph -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run openresty-new-timer-fgraph --exe /path/to/exe/file

# Tracing Multiple Processes

Supported.

# Output Formats

• Flame Graphs

# Author

The OpenResty Inc. Team.

# Copyright

Copyright (C) by OpenResty Inc. All rights reserved.