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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR | RESOURCES | COPYING | NOTES | COLOPHON |
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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 2021-08-27. (At that time, the date of the most recent commit
that was found in the repository was 2021-08-20.) 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
05/27/2020 TRACE-CMD-HIST(1)
Pages that refer to this page: trace-cmd(1), trace-cmd-mem(1)
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