From: Andi Kleen <a...@linux.intel.com>
Add the glue in the user tools to record transaction flags with
--transaction (-T was already taken) and dump them.
Followon patches will use them.
v2: Fix manpage
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/perf/Documentation/perf-record.txt | 4 +++-
tools/perf/builtin-record.c | 2 ++
tools/perf/perf.h | 1 +
tools/perf/util/event.h | 1 +
tools/perf/util/evsel.c | 9 +++++++++
tools/perf/util/session.c | 3 +++
6 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/tools/perf/Documentation/perf-record.txt
b/tools/perf/Documentation/perf-record.txt
index fd4ac81..becccf7 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -185,12 +185,14 @@ is enabled for all the sampling events. The sampled
branch type is the same for
The various filters must be specified as a comma separated list:
--branch-filter any_ret,u,k
Note that this feature may not be available on all processors.
--W::
--weight::
Enable weightened sampling. An additional weight is recorded per sample and
can be
displayed with the weight and local_weight sort keys. This currently works
for TSX
abort events and some memory events in precise mode on modern Intel CPUs.
+--transaction::
+Record transaction flags for transaction related events.
+
SEE ALSO
--------
linkperf:perf-stat[1], linkperf:perf-list[1]
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 5ed43f2..5b8e185 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1046,6 +1046,8 @@ const struct option record_options[] = {
parse_branch_stack),
OPT_BOOLEAN('W', "weight", &record.opts.sample_weight,
"sample by weight (on special events only)"),
+ OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction,
+ "sample transaction flags (special events only)"),
OPT_END()
};
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 7d3173f..4ae529c 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -247,6 +247,7 @@ struct perf_record_opts {
u64 default_interval;
u64 user_interval;
u16 stack_dump_size;
+ bool sample_transaction;
};
#endif
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index a97fbbe..84b070d 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -89,6 +89,7 @@ struct perf_sample {
u64 stream_id;
u64 period;
u64 weight;
+ u64 transaction;
u32 cpu;
u32 raw_size;
void *raw_data;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3800fb5..5c9790d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -448,6 +448,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct
perf_record_opts *opts,
if (opts->sample_weight)
attr->sample_type |= PERF_SAMPLE_WEIGHT;
+ if (opts->sample_transaction)
+ attr->sample_type |= PERF_SAMPLE_TRANSACTION;
+
if (opts->call_graph) {
attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
@@ -951,6 +954,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel,
union perf_event *event,
array++;
}
+ data->transaction = 0;
+ if (type & PERF_SAMPLE_TRANSACTION) {
+ data->transaction = *array;
+ array++;
+ }
+
if (type & PERF_SAMPLE_READ) {
fprintf(stderr, "PERF_SAMPLE_READ is unsupported for now\n");
return -1;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 175dde3..6757345 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1009,6 +1009,9 @@ static void dump_sample(struct perf_evsel *evsel, union
perf_event *event,
if (sample_type & PERF_SAMPLE_WEIGHT)
printf("... weight: %" PRIu64 "\n", sample->weight);
+
+ if (sample_type & PERF_SAMPLE_TRANSACTION)
+ printf("... transaction: %" PRIx64 "\n", sample->transaction);
}
static struct machine *
--
1.7.7.6
--
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