Analyzer java-gc-pause

# Name

java-gc-pause - Java GC Pause Histogram

This analyzer measures the pauses caused by HotSpot garbage collection. It records GC pause durations and displays them as a histogram, so you can see both how often pauses happen and how long they last. The summary also gives the number of samples, minimum, average, maximum, and total pause time.

# Resource Category

Latency.

# Application Type & Technical Stack

• Java

# 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 java-gc-pause -p PID

# trace a shell command directly
orxray analyzer run java-gc-pause -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run java-gc-pause -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run java-gc-pause --exe /path/to/exe/file

# Tracing Multiple Processes

Supported.

# Output Formats

• Histogram Bar Charts
• Plain Texts

# Author

The OpenResty Inc. Team.

# Copyright

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