Analyzer perl-read-volume-fgraph

# Name

perl-read-volume-fgraph - Perl-Land Virtual File System Read/Sendfile Volume Flame Graph

This analyzer profiles the data volume of virtual file system read and sendfile operations in Perl-land code execution. It captures stack traces during file read and sendfile system calls, measuring the total bytes transferred. The analyzer generates flame graphs showing the distribution of data volume across different code paths, helping identify heavy I/O consumers and optimize data transfer efficiency in Perl applications.

# Resource Category

Disk I/O.

# Application Type & Technical Stack

• Perl

# 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 perl-read-volume-fgraph -p PID

# trace a shell command directly
orxray analyzer run perl-read-volume-fgraph -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run perl-read-volume-fgraph -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run perl-read-volume-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.