trace-cmd - interacts with Ftrace Linux kernel internal tracer
trace-cmd COMMAND [OPTIONS]
The trace-cmd(1) command interacts with the Ftrace tracer that is built inside the Linux kernel. It interfaces with the Ftrace specific files found in the debugfs file system under the tracing directory. A COMMAND must be specified to tell trace-cmd what to do.
record - record a live trace and write a trace.dat file to the local disk or to the network. report - reads a trace.dat file and converts the binary data to a ASCII text readable format. hist - show a histogram of the events. stat - show tracing (ftrace) status of the running system options - list the plugin options that are available to *report* start - start the tracing without recording to a trace.dat file. stop - stop tracing (only disables recording, overhead of tracer is still in effect) restart - restart tracing from a previous stop (only effects recording) extract - extract the data from the kernel buffer and create a trace.dat file. reset - disables all tracing and gives back the system performance. (clears all data from the kernel buffers) split - splits a trace.dat file into smaller files. list - list the available plugins or events that can be recorded. listen - open up a port to listen for remote tracing connections. restore - restore the data files of a crashed run of trace-cmd record stack - run and display the stack tracer check-events - parse format strings for all trace events and return whether all formats are parseable
-h, --help Display the help text. Other options see the man page for the corresponding command.
trace-cmd-record(1), trace-cmd-report(1), trace-cmd-hist(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-stack(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd.dat(5), trace-cmd-check-events(1) trace-cmd-stat(1)
Written by Steven Rostedt, <email@example.com>
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).
1. firstname.lastname@example.org mailto:email@example.com
This page is part of the trace-cmd (a front-end for Ftrace) project. Information about the project can be found at [unknown -- if you know, please contact firstname.lastname@example.org] If you have a bug report for this manual page, send it to Steven Rostedt <email@example.com>. This page was obtained from the project's upstream Git repository ⟨git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git⟩ on 2020-06-09. (At that time, the date of the most recent commit that was found in the repository was 2020-06-08.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org 05/27/2020 TRACE-CMD(1)
Pages that refer to this page: strace(1), trace-cmd-check-events(1), trace-cmd-dump(1), trace-cmd-extract(1), trace-cmd-hist(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-mem(1), trace-cmd-options(1), trace-cmd-profile(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-set(1), trace-cmd-show(1), trace-cmd-snapshot(1), trace-cmd-split(1), trace-cmd-stack(1), trace-cmd-start(1), trace-cmd-stat(1), trace-cmd-stop(1), trace-cmd-stream(1), trace-cmd.dat(5)