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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR | RESOURCES | COPYING | NOTES | COLOPHON |
TRACE-CMD-HIST(1) TRACE-CMD-HIST(1)
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, <rostedt@goodmis.org[1]>
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted
under the terms of the GNU Public License (GPL).
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
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 man-pages@man7.org] If you have a bug report for
this manual page, send it to Steven Rostedt <rostedt@goodmis.org>.
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 2017-07-05. 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 man-pages@man7.org
12/17/2015 TRACE-CMD-HIST(1)