[PATCH 6/6] perf, tool: Add hardcoded name term for pmu events
From: Jiri Olsa
Date: Wed Apr 25 2012 - 12:26:11 EST
Adding a new hardcoded term 'name' allowing to specify a name
for the pmu event. The term is defined along with standard
pmu terms. If no 'name' term is given, the event name follows
following template:
"raw 0x<perf_event_attr::config>"
running:
perf stat -e cpu/config=1,name=krava1/u ls
will produce following output:
...
Performance counter stats for 'ls':
0 krava1
...
running:
perf stat -e cpu/config=1/u ls
will produce following output:
...
Performance counter stats for 'ls':
0 raw 0x1
...
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
tools/perf/util/parse-events-test.c | 25 +++++++++++++++++++++++++
tools/perf/util/parse-events.c | 23 ++++++++++++++++++++++-
tools/perf/util/parse-events.h | 1 +
tools/perf/util/parse-events.l | 1 +
tools/perf/util/parse-events.y | 8 ++++++++
tools/perf/util/pmu.c | 4 ++--
6 files changed, 59 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index 2e8f435..76b98e2 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -409,6 +409,27 @@ static int test__checkevent_list(struct perf_evlist *evlist)
return 0;
}
+static int test__checkevent_pmu_name(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ /* cpu/config=1,name=krava1/u */
+ evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
+ TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
+ TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
+ TEST_ASSERT_VAL("wrong config", 1 == evsel->attr.config);
+ TEST_ASSERT_VAL("wrong name", !strcmp(evsel->name, "krava"));
+
+ /* cpu/config=2/" */
+ evsel = list_entry(evsel->node.next, struct perf_evsel, node);
+ TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
+ TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
+ TEST_ASSERT_VAL("wrong config", 2 == evsel->attr.config);
+ TEST_ASSERT_VAL("wrong name", !strcmp(evsel->name, "raw 0x2"));
+
+ return 0;
+}
+
struct test__event_st {
const char *name;
__u32 type;
@@ -529,6 +550,10 @@ static struct test__event_st test__events_pmu[] = {
.name = "cpu/config=10,config1,config2=3,period=1000/u",
.check = test__checkevent_pmu,
},
+ [1] = {
+ .name = "cpu/config=1,name=krava/u,cpu/config=2/u",
+ .check = test__checkevent_pmu_name,
+ },
};
#define TEST__EVENTS_PMU_CNT (sizeof(test__events_pmu) / \
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 59324e7..fac7d59 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -634,6 +634,9 @@ do { \
* attr->branch_sample_type = term->val.num;
*/
break;
+ case PARSE_EVENTS__TERM_TYPE_NAME:
+ CHECK_TYPE_VAL(STR);
+ break;
default:
return -EINVAL;
}
@@ -672,6 +675,23 @@ int parse_events_add_numeric(struct list_head **list, int *idx,
(char *) __event_name(type, config));
}
+static int parse_events__is_name_term(struct parse_events__term *term)
+{
+ return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
+}
+
+static char *pmu_event_name(struct perf_event_attr *attr,
+ struct list_head *head_terms)
+{
+ struct parse_events__term *term;
+
+ list_for_each_entry(term, head_terms, list)
+ if (parse_events__is_name_term(term))
+ return term->val.str;
+
+ return (char *) __event_name(PERF_TYPE_RAW, attr->config);
+}
+
int parse_events_add_pmu(struct list_head **list, int *idx,
char *name, struct list_head *head_config)
{
@@ -693,7 +713,8 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
if (perf_pmu__config(pmu, &attr, head_config))
return -EINVAL;
- return add_event(list, idx, &attr, (char *) "pmu");
+ return add_event(list, idx, &attr,
+ pmu_event_name(&attr, head_config));
}
void parse_events_update_lists(struct list_head *list_event,
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 5633b32..20d623d 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -46,6 +46,7 @@ enum {
PARSE_EVENTS__TERM_TYPE_CONFIG,
PARSE_EVENTS__TERM_TYPE_CONFIG1,
PARSE_EVENTS__TERM_TYPE_CONFIG2,
+ PARSE_EVENTS__TERM_TYPE_NAME,
PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
};
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 331d28a..618a8e7 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -105,6 +105,7 @@ misses|miss { return str(PE_NAME_CACHE_OP_RESULT); }
config { return term(PARSE_EVENTS__TERM_TYPE_CONFIG); }
config1 { return term(PARSE_EVENTS__TERM_TYPE_CONFIG1); }
config2 { return term(PARSE_EVENTS__TERM_TYPE_CONFIG2); }
+name { return term(PARSE_EVENTS__TERM_TYPE_NAME); }
period { return term(PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
branch_type { return term(PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 126fad0..362cc59 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -237,6 +237,14 @@ PE_NAME
$$ = term;
}
|
+PE_TERM '=' PE_NAME
+{
+ struct parse_events__term *term;
+
+ ABORT_ON(parse_events__term_str(&term, $1, NULL, $3));
+ $$ = term;
+}
+|
PE_TERM '=' PE_VALUE
{
struct parse_events__term *term;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 8ee219b..a119a53 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -258,9 +258,9 @@ static int pmu_config_term(struct list_head *formats,
static int pmu_config(struct list_head *formats, struct perf_event_attr *attr,
struct list_head *head_terms)
{
- struct parse_events__term *term, *h;
+ struct parse_events__term *term;
- list_for_each_entry_safe(term, h, head_terms, list)
+ list_for_each_entry(term, head_terms, list)
if (pmu_config_term(formats, attr, term))
return -EINVAL;
--
1.7.7.6
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