Linux command
trace-cmd-list 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Example
sudo trace-cmd list -t
Example
sudo trace-cmd list -p
Example
sudo trace-cmd list -e
Example
sudo trace-cmd list -f
Example
sudo trace-cmd list -e [sched:*]
Example
sudo trace-cmd list -o
Example
sudo trace-cmd list -f [tcp_send*]
说明
trace-cmd list displays available tracers, events, plugins, and functions that can be used with the Ftrace tracing framework. This helps identify what can be traced on the current system. The output depends on kernel configuration and loaded modules. Function listing may be very large on systems with many kernel symbols.
参数
- -t
- List available tracers
- -p
- List available plugins
- -e _regex_
- List available events, optionally filtered by a subsystem or regex pattern.
- -f _regex_
- List available functions for tracing, optionally filtered by regex.
- -o
- List available event options (e.g., noprint-fmt, sym-offset).
- -B _buffer_
- List from a specific buffer instance.
FAQ
What is the trace-cmd-list command used for?
trace-cmd list displays available tracers, events, plugins, and functions that can be used with the Ftrace tracing framework. This helps identify what can be traced on the current system. The output depends on kernel configuration and loaded modules. Function listing may be very large on systems with many kernel symbols.
How do I run a basic trace-cmd-list example?
Run `sudo trace-cmd list -t` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -t do in trace-cmd-list?
List available tracers