NAME¶
reset-ftrace - reset state of ftrace, disabling all tracing. Written for Linux
ftrace.
SYNOPSIS¶
reset-ftrace [-fhq]
DESCRIPTION¶
This resets the state of various ftrace files, and shows the before and after
state.
This may only be of use to ftrace hackers who, in the process of developing
ftrace software, often get the subsystem into a partially active state, and
would like a quick way to reset state. Check the end of this script for the
actually files reset, and add more if you need.
WARNING: Only use this if and when you are sure that there are no other active
ftrace sessions on your system, as otherwise it will kill them.
REQUIREMENTS¶
FTRACE CONFIG.
OPTIONS¶
- -f
- Force. If the ftrace lock file exists (/var/tmp/.ftrace-lock), delete
it.
- -h
- Print usage message.
- -q
- Quiet. Run, but don't print any output.
EXAMPLES¶
- Reset various ftrace files:
- # reset-ftrace
SOURCE¶
This is from the perf-tools collection.
- https://github.com/brendangregg/perf-tools
Also look under the examples directory for a text file containing example usage,
output, and commentary for this tool.
Linux
STABILITY¶
Unstable - in development.
AUTHOR¶
Brendan Gregg
SEE ALSO¶
perf(1)