Commit-ID: 9a6d316692d59c4400a66b01db675abac432b4b2
Gitweb: http://git.kernel.org/tip/9a6d316692d59c4400a66b01db675abac432b4b2
Author: David Ahern <dsahern@xxxxxxxxx>
AuthorDate: Wed, 7 Aug 2013 21:56:39 -0400
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 12 Aug 2013 10:31:05 -0300
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: David Ahern <dsahern@xxxxxxxxx>
Requested-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Runzhen Wang <runzhen@xxxxxxxxxxxxxxxxxx>
Cc: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1375926999-75129-2-git-send-email-dsahern@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/Documentation/perf-kvm.txt | 46 +++++++++++++++++++++++++++++++++--
1 file changed, 44 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt
index 326f2cb..ac84db2 100644
--- a/tools/perf/Documentation/perf-kvm.txt
+++ b/tools/perf/Documentation/perf-kvm.txt
@@ -13,6 +13,7 @@ SYNOPSIS
{top|record|report|diff|buildid-list}
'perf kvm' [--host] [--guest] [--guestkallsyms=<path> --guestmodules=<path>
| --guestvmlinux=<path>] {top|record|report|diff|buildid-list|stat}
+'perf kvm stat [record|report|live] [<options>]
DESCRIPTION
-----------
@@ -50,6 +51,10 @@ There are a couple of variants of perf kvm:
'perf kvm stat report' reports statistical data which includes events
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
-------
-i::
@@ -85,13 +90,50 @@ STAT REPORT OPTIONS
--vcpu=<value>::
analyze events which occures on this vcpu. (default: all vcpus)
---events=<value>::
- events to be analyzed. Possible values: vmexit, mmio, ioport.
+--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).
+-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
--------
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