Analyzer kernel-dropwatch

# Name

kernel-dropwatch - Packet Drop Flame Graph

# Resource Category

Network I/O.

# Application Type & Technical Stack

• C/C++

# Parameters

The following parameters (or global variables) can be overridden by the user when running the analyzer or tool:

# sample_time

Type: int

Description: sample time

Default Value: 15

# max_samples

Type: int

Description: maximum samples

Default Value: 20

# target_devices

Type: string

Description: device names separated by comma

Default Value: None

# target_protocols

Type: string

Description: ether protocol separated by comma(eg: IP, IPV6, ARP)

Default Value: None

# block_devices

Type: string

Description: device names separated by comma

Default Value: None

# block_protocols

Type: string

Description: ether protocol separated by comma(eg: IP, IPV6, ARP)

Default Value: UNKNOWN

# 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 kernel-dropwatch -p PID

# trace a shell command directly
orxray analyzer run kernel-dropwatch -c SHELL_CMD

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

# trace any processes started from the specified executable path.
orxray analyzer run kernel-dropwatch --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.