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.