linux-kernel - [tip:perf/probes] perf probe: Update perf probe document

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Message-ID: <tip-ee391de876ae4272926b8632be04ed4a460321e3@git.kernel.org>
Date:	Thu, 25 Feb 2010 19:30:36 GMT
From:	tip-bot for Masami Hiramatsu <mhiramat@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, paulus@...ba.org, acme@...hat.com,
	hpa@...or.com, mingo@...hat.com, efault@....de,
	peterz@...radead.org, ananth@...ibm.com,
	dle-develop@...ts.sourceforge.net, fweisbec@...il.com,
	tglx@...utronix.de, mhiramat@...hat.com, mingo@...e.hu,
	prasad@...ux.vnet.ibm.com, systemtap@...rces.redhat.com
Subject: [tip:perf/probes] perf probe: Update perf probe document

Commit-ID:  ee391de876ae4272926b8632be04ed4a460321e3
Gitweb:     http://git.kernel.org/tip/ee391de876ae4272926b8632be04ed4a460321e3
Author:     Masami Hiramatsu <mhiramat@...hat.com>
AuthorDate: Thu, 25 Feb 2010 08:35:19 -0500
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 25 Feb 2010 17:49:27 +0100

perf probe: Update perf probe document

Update perf-probe.txt to suit to current perf-probe command
and add some examples.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Mike Galbraith <efault@....de>
Cc: K.Prasad <prasad@...ux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
LKML-Reference: <20100225133519.6725.58816.stgit@...alhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 tools/perf/Documentation/perf-probe.txt |   28 ++++++++++++++++++++++++++--
 1 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 2de3407..5fe63c0 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -41,7 +41,8 @@ OPTIONS
 
 -d::
 --del=::
-	Delete a probe event.
+	Delete probe events. This accepts glob wildcards('*', '?') and character
+	classes(e.g. [a-z], [!A-Z]).
 
 -l::
 --list::
@@ -50,7 +51,11 @@ OPTIONS
 -L::
 --line=::
 	Show source code lines which can be probed. This needs an argument
-	which specifies a range of the source code.
+	which specifies a range of the source code. (see LINE SYNTAX for detail)
+
+-f::
+--force::
+	Forcibly add events with existing name.
 
 PROBE SYNTAX
 ------------
@@ -76,6 +81,25 @@ and 'ALN2' is end line number in the file. It is also possible to specify how
 many lines to show by using 'NUM'.
 So, "source.c:100-120" shows lines between 100th to l20th in source.c file. And "func:10+20" shows 20 lines from 10th line of func function.
 
+EXAMPLES
+--------
+Display which lines in schedule() can be probed:
+
+ ./perf probe --line schedule
+
+Add a probe on schedule() function 12th line with recording cpu local variable:
+
+ ./perf probe schedule:12 cpu
+ or
+ ./perf probe --add='schedule:12 cpu'
+
+ this will add one or more probes which has the name start with "schedule".
+
+Delete all probes on schedule().
+
+ ./perf probe --del='schedule*'
+
+
 SEE ALSO
 --------
 linkperf:perf-trace[1], linkperf:perf-record[1]
--
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