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Subject[tip:perf/core] perf lock: Document lock info subcommand
Commit-ID:  d1eec3ecaef083affaf3210246b01b6e80d3a44e
Gitweb: http://git.kernel.org/tip/d1eec3ecaef083affaf3210246b01b6e80d3a44e
Author: Namhyung Kim <namhyung@gmail.com>
AuthorDate: Sun, 29 Jan 2012 17:55:56 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 30 Jan 2012 18:30:48 -0200

perf lock: Document lock info subcommand

The commit 26242d859c9be ("perf lock: Add "info" subcommand for dumping
misc information") added the subcommand but missed documentation. Add
it. Also update stale 'trace' subcommand to 'script'.

Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1327827356-8786-5-git-send-email-namhyung@gmail.com
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-lock.txt | 20 +++++++++++++++++---
tools/perf/builtin-lock.c | 4 ++--
2 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt
index d6b2a4f..c7f5f55 100644
--- a/tools/perf/Documentation/perf-lock.txt
+++ b/tools/perf/Documentation/perf-lock.txt
@@ -8,7 +8,7 @@ perf-lock - Analyze lock events
SYNOPSIS
--------
[verse]
-'perf lock' {record|report|trace}
+'perf lock' {record|report|script|info}

DESCRIPTION
-----------
@@ -20,10 +20,13 @@ and statistics with this 'perf lock' command.
produces the file "perf.data" which contains tracing
results of lock events.

- 'perf lock trace' shows raw lock events.
-
'perf lock report' reports statistical data.

+ 'perf lock script' shows raw lock events.
+
+ 'perf lock info' shows metadata like threads or addresses
+ of lock instances.
+
COMMON OPTIONS
--------------

@@ -47,6 +50,17 @@ REPORT OPTIONS
Sorting key. Possible values: acquired (default), contended,
wait_total, wait_max, wait_min.

+INFO OPTIONS
+------------
+
+-t::
+--threads::
+ dump thread list in perf.data
+
+-m::
+--map::
+ dump map of lock instances (address:name table)
+
SEE ALSO
--------
linkperf:perf[1]
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 2296c39..12c8148 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -922,12 +922,12 @@ static const struct option info_options[] = {
OPT_BOOLEAN('t', "threads", &info_threads,
"dump thread list in perf.data"),
OPT_BOOLEAN('m', "map", &info_map,
- "map of lock instances (name:address table)"),
+ "map of lock instances (address:name table)"),
OPT_END()
};

static const char * const lock_usage[] = {
- "perf lock [<options>] {record|trace|report}",
+ "perf lock [<options>] {record|report|script|info}",
NULL
};


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