After this patch, 'perf data convert' convert comm events to output
CTF stream.
Result:
# perf record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.771 MB perf.data (79 samples) ]
# perf data convert --to-ctf ./out.ctf
[ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
[ perf data convert: Converted and wrote 0.004 MB (79 samples) ]
# babeltrace ./out.ctf/
[20:59:41.942633169] (+?.?????????) cycles:ppp: { cpu_id = 0 }, { perf_ip =
0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
[20:59:41.942636194] (+0.000003025) cycles:ppp: { cpu_id = 0 }, { perf_ip =
0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
... // only sample event is converted
# perf data convert --all --to-ctf ./out.ctf
[ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
[ perf data convert: Converted and wrote 0.004 MB (79 samples) ]
# babeltrace ./out.ctf/
[00:00:00.000000000] (+?.?????????) perf_comm: { cpu_id = 0 }, { comm =
"init", pid = 1, tid = 1 }
[00:00:00.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { comm =
"kthreadd", pid = 2, tid = 2 }
[00:00:00.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { comm =
"ksoftirqd/0", pid = 3, tid = 3 }
... // comm events are converted
Signed-off-by: Wang Nan <wangn...@huawei.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Jiri Olsa <jo...@redhat.com>
---
tools/perf/Documentation/perf-data.txt | 5 ++++-
tools/perf/builtin-data.c | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-data.txt
b/tools/perf/Documentation/perf-data.txt
index be8fa1a..f8ada39 100644
--- a/tools/perf/Documentation/perf-data.txt
+++ b/tools/perf/Documentation/perf-data.txt
@@ -34,7 +34,10 @@ OPTIONS for 'convert'
--verbose::
Be more verbose (show counter open errors, etc).
-SEE ALSO
+--all::
+ Convert all events, including non-sample events (comm, fork, ...), to
output.
+ Default is off, only convert samples.
+
--------
linkperf:perf[1]
[1] Common Trace Format - http://www.efficios.com/ctf
diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
index a011a56..a87c964 100644
--- a/tools/perf/builtin-data.c
+++ b/tools/perf/builtin-data.c
@@ -65,6 +65,7 @@ static int cmd_data_convert(int argc, const char **argv,
OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
#endif
OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
+ OPT_BOOLEAN(0, "all", &opts.non_sample, "Convert all events"),
OPT_END()
};
--
1.8.3.4
