Analyzer go-on-cpu

# Name

go-on-cpu - Go-Land on-CPU Flame Graph

This analyzer profiles CPU usage in Go applications by capturing stack traces during active CPU execution. It generates flame graphs visualizing the distribution of CPU time across Go functions and goroutines. The analyzer helps identify computational hotspots, optimize algorithm performance, and understand CPU resource consumption patterns in Go applications.

# Resource Category

CPU.

# Application Type & Technical Stack

• Go

# 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 go-on-cpu -p PID

# trace a shell command directly
orxray analyzer run go-on-cpu -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run go-on-cpu -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run go-on-cpu --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.