linux-kernel - [tip:perfcounters/core] perf stat: Update help text

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Date:	Thu, 4 Jun 2009 15:39:31 GMT
From:	tip-bot for Ingo Molnar <mingo@...e.hu>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	efault@....de, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perfcounters/core] perf stat: Update help text

Commit-ID:  20c84e959ec11b1803d2b2832eef703d5fbe7f7b
Gitweb:     http://git.kernel.org/tip/20c84e959ec11b1803d2b2832eef703d5fbe7f7b
Author:     Ingo Molnar <mingo@...e.hu>
AuthorDate: Thu, 4 Jun 2009 16:33:00 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 4 Jun 2009 16:33:00 +0200

perf stat: Update help text

Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 .../perf_counter/Documentation/perf-stat.txt       |   30 ++++++++++++-------
 1 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/Documentation/perf_counter/Documentation/perf-stat.txt b/Documentation/perf_counter/Documentation/perf-stat.txt
index a67d0e3..a340e7b 100644
--- a/Documentation/perf_counter/Documentation/perf-stat.txt
+++ b/Documentation/perf_counter/Documentation/perf-stat.txt
@@ -22,6 +22,7 @@ OPTIONS
 <command>...::
 	Any command you can specify in a shell.
 
+
 -e::
 --event=::
                              0:0: cpu-cycles          
@@ -45,6 +46,13 @@ OPTIONS
                              1:4: migrations          
                            rNNN: raw PMU events (eventsel+umask)
 
+-i::
+--inherit::
+        child tasks inherit counters
+-p::
+--pid=<pid>::
+        stat events on existing pid
+
 -a::
         system-wide collection
 
@@ -54,20 +62,20 @@ OPTIONS
 EXAMPLES
 --------
 
-$ perf stat sleep 1
+$ perf stat -- make -j
 
- Performance counter stats for 'sleep':
+ Performance counter stats for 'make -j':
 
-       0.678356  task clock ticks     (msecs)
-              7  context switches     (events)
-              4  CPU migrations       (events)
-            232  pagefaults           (events)
-        1810403  CPU cycles           (events)
-         946759  instructions         (events)
-          18952  cache references     (events)
-           4885  cache misses         (events)
+    8117.370256  task clock ticks     #      11.281 CPU utilization factor
+            678  context switches     #       0.000 M/sec
+            133  CPU migrations       #       0.000 M/sec
+         235724  pagefaults           #       0.029 M/sec
+    24821162526  CPU cycles           #    3057.784 M/sec
+    18687303457  instructions         #    2302.138 M/sec
+      172158895  cache references     #      21.209 M/sec
+       27075259  cache misses         #       3.335 M/sec
 
- Wall-clock time elapsed:  1001.252894 msecs
+ Wall-clock time elapsed:   719.554352 msecs
 
 SEE ALSO
 --------
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