AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 11:50:52 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

perf lock: Document lock info subcommand

Browse Source 
The commit 26242d859c ("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>
This commit is contained in:
Namhyung Kim 2012-01-29 17:55:56 +09:00 committed by Arnaldo Carvalho de Melo
parent 008953dc6a
commit d1eec3ecae
2 changed files with 19 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
tools/perf/Documentation/perf-lock.txt
View File

@ -8,7 +8,7 @@ perf-lock - Analyze lock events
SYNOPSIS SYNOPSIS
-------- --------
[verse] [verse]
'perf lock' {record|report|trace} 'perf lock' {record|report|script|info}
DESCRIPTION DESCRIPTION
----------- -----------
@ -20,10 +20,13 @@ and statistics with this 'perf lock' command.
produces the file "perf.data" which contains tracing produces the file "perf.data" which contains tracing
results of lock events. results of lock events.
'perf lock trace' shows raw lock events.
'perf lock report' reports statistical data. '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 COMMON OPTIONS
-------------- --------------
@ -47,6 +50,17 @@ REPORT OPTIONS
Sorting key. Possible values: acquired (default), contended, Sorting key. Possible values: acquired (default), contended,
wait_total, wait_max, wait_min. 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 SEE ALSO
-------- --------
linkperf:perf[1] linkperf:perf[1]

4
tools/perf/builtin-lock.c
View File

@ -922,12 +922,12 @@ static const struct option info_options[] = {
OPT_BOOLEAN('t', "threads", &info_threads, OPT_BOOLEAN('t', "threads", &info_threads,
"dump thread list in perf.data"), "dump thread list in perf.data"),
OPT_BOOLEAN('m', "map", &info_map, OPT_BOOLEAN('m', "map", &info_map,
"map of lock instances (name:address table)"), "map of lock instances (address:name table)"),
OPT_END() OPT_END()
}; };
static const char * const lock_usage[] = { static const char * const lock_usage[] = {
"perf lock [<options>] {record|trace|report}", "perf lock [<options>] {record|report|script|info}",
NULL NULL
}; };