[PATCH 23/37] perf auxtrace: Add itrace option to output power events

Adrian Hunter
2017-05-19T09:01:21Z

Add itrace option to output power events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/Documentation/itrace.txt | 5 +++--
tools/perf/util/auxtrace.c | 4 ++++
tools/perf/util/auxtrace.h | 2 ++
3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index deafd16692b6..a3abe04c779d 100644
--- a/tools/perf/Documentation/itrace.txt
+++ b/tools/perf/Documentation/itrace.txt
@@ -4,13 +4,14 @@
r synthesize branches events (returns only)
x synthesize transactions events
w synthesize ptwrite events
+ p synthesize power events
e synthesize error events
d create a debug log
g synthesize a call chain (use with i or x)
l synthesize last branch entries (use with i or x)
s skip initial number of events

- The default is all events i.e. the same as --itrace=ibxwe
+ The default is all events i.e. the same as --itrace=ibxwpe

In addition, the period (default 100000) for instructions events
can be specified in units of:
@@ -28,7 +29,7 @@
instructions or transactions events can be specified.

It is also possible to skip events generated (instructions, branches, transactions,
- ptwrite) at the beginning. This is useful to ignore initialization code.
+ ptwrite, power) at the beginning. This is useful to ignore initialization code.

--itrace=i0nss1000000

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index baad91ed1e05..651c01dfa5d3 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -948,6 +948,7 @@ void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts)
synth_opts->branches = true;
synth_opts->transactions = true;
synth_opts->ptwrites = true;
+ synth_opts->pwr_events = true;
synth_opts->errors = true;
synth_opts->period_type = PERF_ITRACE_DEFAULT_PERIOD_TYPE;
synth_opts->period = PERF_ITRACE_DEFAULT_PERIOD;
@@ -1034,6 +1035,9 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
case 'w':
synth_opts->ptwrites = true;
break;
+ case 'p':
+ synth_opts->pwr_events = true;
+ break;
case 'e':
synth_opts->errors = true;
break;
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index b48afb2f18f3..68e0aa40b24a 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -60,6 +60,7 @@ enum itrace_period_type {
* @branches: whether to synthesize 'branches' events
* @transactions: whether to synthesize events for transactions
* @ptwrites: whether to synthesize events for ptwrites
+ * @pwr_events: whether to synthesize power events
* @errors: whether to synthesize decoder error events
* @dont_decode: whether to skip decoding entirely
* @log: write a decoding log
@@ -81,6 +82,7 @@ struct itrace_synth_opts {
bool branches;
bool transactions;
bool ptwrites;
+ bool pwr_events;
bool errors;
bool dont_decode;
bool log;
--
1.9.1