Analyzer ngx-cpu-hottest-hosts

Name

ngx-cpu-hottest-hosts - Showing the top 10 hostnames consuming the most CPU resources

This analyzer identifies the top 10 virtual hosts consuming the most CPU resources in OpenResty, Kong, and APISIX applications. It samples CPU usage across different HTTP host headers during request processing to determine which domains or services are most CPU-intensive. The analyzer generates bar charts ranking hosts by CPU consumption, helping pinpoint resource-heavy endpoints and optimize multi-tenant application performance.

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 ngx-cpu-hottest-hosts -p PID

# trace a shell command directly
orxray analyzer run ngx-cpu-hottest-hosts -c SHELL_CMD

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

# trace any processes started from the specified executable path.
orxray analyzer run ngx-cpu-hottest-hosts --exe /path/to/exe/file

Tracing Multiple Processes

Supported.

Output Formats

  • Bar Charts
  • Line Charts
  • Pie Charts
  • Plain Texts

Author

The OpenResty Inc. Team.

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