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Commit 9a6d3166 authored by David Ahern's avatar David Ahern Committed by Arnaldo Carvalho de Melo
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perf kvm: Update documentation with live command 



Update perf-kvm documentation with new live subcommand. Add -p/--pid
option for perf-kvm-stat-report as well.

Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Requested-by: default avatarXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1375926999-75129-2-git-send-email-dsahern@gmail.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 70f7b4a7

tools/perf/Documentation/perf-kvm.txt

+44 −2
Original line number Original line Diff line number Diff line
@@ -13,6 +13,7 @@ SYNOPSIS 
	{top|record|report|diff|buildid-list}

	{top|record|report|diff|buildid-list}

'perf kvm' [--host] [--guest] [--guestkallsyms=<path> --guestmodules=<path>

'perf kvm' [--host] [--guest] [--guestkallsyms=<path> --guestmodules=<path>

	| --guestvmlinux=<path>] {top|record|report|diff|buildid-list|stat}

	| --guestvmlinux=<path>] {top|record|report|diff|buildid-list|stat}

'perf kvm stat [record|report|live] [<options>]





DESCRIPTION

DESCRIPTION

-----------

-----------
@@ -50,6 +51,10 @@ There are a couple of variants of perf kvm: 
  'perf kvm stat report' reports statistical data which includes events

  'perf kvm stat report' reports statistical data which includes events

  handled time, samples, and so on.

  handled time, samples, and so on.





  'perf kvm stat live' reports statistical data in a live mode (similar to

  record + report but with statistical data updated live at a given display

  rate).



OPTIONS

OPTIONS

-------

-------

-i::

-i::
@@ -85,13 +90,50 @@ STAT REPORT OPTIONS 
--vcpu=<value>::

--vcpu=<value>::

       analyze events which occures on this vcpu. (default: all vcpus)

       analyze events which occures on this vcpu. (default: all vcpus)





--events=<value>::

--event=<value>::

       events to be analyzed. Possible values: vmexit, mmio, ioport.

       event to be analyzed. Possible values: vmexit, mmio, ioport.

       (default: vmexit)

       (default: vmexit)

-k::

-k::

--key=<value>::

--key=<value>::

       Sorting key. Possible values: sample (default, sort by samples

       Sorting key. Possible values: sample (default, sort by samples

       number), time (sort by average time).

       number), time (sort by average time).

-p::

--pid=::

    Analyze events only for given process ID(s) (comma separated list).



STAT LIVE OPTIONS

-----------------

-d::

--display::

        Time in seconds between display updates



-m::

--mmap-pages=::

    Number of mmap data pages. Must be a power of two.



-a::

--all-cpus::

        System-wide collection from all CPUs.



-p::

--pid=::

    Analyze events only for given process ID(s) (comma separated list).



--vcpu=<value>::

       analyze events which occures on this vcpu. (default: all vcpus)





--event=<value>::

       event to be analyzed. Possible values: vmexit, mmio, ioport.

       (default: vmexit)



-k::

--key=<value>::

       Sorting key. Possible values: sample (default, sort by samples

       number), time (sort by average time).



--duration=<value>::

       Show events other than HLT that take longer than duration usecs.





SEE ALSO

SEE ALSO

--------

--------