trace-cmd-hist - show histogram of events in trace.dat file
trace-cmd hist [OPTIONS][input-file]
The trace-cmd(1) hist displays a histogram form from the trace.dat file. Instead of showing the events as they were ordered, it creates a histogram that can be displayed per task or for all tasks where the most common events appear first. It uses the function tracer and call stacks that it finds to try to put together a call graph of the events.
-i input-file By default, trace-cmd hist will read the file trace.dat. But the -i option open up the given input-file instead. Note, the input file may also be specified as the last item on the command line. -P To compact all events and show the call graphs by ignoring tasks and different PIDs, add the -P to do so. Instead of showing the task name, it will group all chains together and show "<all pids>".
trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(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 2020-07-14. (At that time, the date of the most recent commit that was found in the repository was 2020-07-09.) 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-HIST(1)
Pages that refer to this page: trace-cmd(1), trace-cmd-mem(1)