Commit d1eec3ec authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo

perf lock: Document lock info subcommand

The commit 26242d85 ("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.comSigned-off-by: default avatarNamhyung Kim <namhyung@gmail.com>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 008953dc
......@@ -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]
......@@ -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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