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Message-Id: <20211007165647.3514803-15-irogers@google.com>
Date: Thu, 7 Oct 2021 09:56:40 -0700
From: Ian Rogers <irogers@...gle.com>
To: Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>,
Jin Yao <yao.jin@...ux.intel.com>,
Namhyung Kim <namhyung@...nel.org>,
John Garry <john.garry@...wei.com>,
Kajol Jain <kjain@...ux.ibm.com>,
"Paul A . Clarke" <pc@...ibm.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Riccardo Mancini <rickyman7@...il.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Kees Cook <keescook@...omium.org>,
Sami Tolvanen <samitolvanen@...gle.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Jacob Keller <jacob.e.keller@...el.com>,
Zhen Lei <thunder.leizhen@...wei.com>,
ToastC <mrtoastcheng@...il.com>,
Joakim Zhang <qiangqing.zhang@....com>,
Felix Fietkau <nbd@....name>,
Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
Song Liu <songliubraving@...com>, Fabian Hemmer <copy@...y.sh>,
Alexander Antonov <alexander.antonov@...ux.intel.com>,
Nicholas Fraser <nfraser@...eweavers.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Denys Zagorui <dzagorui@...co.com>,
Wan Jiabing <wanjiabing@...o.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Sumanth Korikkar <sumanthk@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Changbin Du <changbin.du@...el.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH 14/21] perf parse-events: Add new "metric-id" term.
Add a new "metric-id" term to events so that metric parsing can set an
ID that can be reliably looked up. Metric parsing currently will turn a
metric like "instructions/cycles" into a parse events string of
"{instructions,cycles}:W". However, parse-events may change
"instructions" into "instructions:u" if perf_event_paranoid=2. When this
happens expr__resolve_id currently fails as stat-shadow adds the ID
"instructions:u" to match with the counter value and the metric tries to
look up the ID just "instructions".
A later patch will use the new term.
An example of the current problem:
$ echo -1 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
1,217,161 inst_retired.any # 0.97 IPC
1,250,389 cpu_clk_unhalted.thread
0.002064773 seconds time elapsed
0.002378000 seconds user
0.000000000 seconds sys
$ echo 2 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
150,298 inst_retired.any:u # nan IPC
187,095 cpu_clk_unhalted.thread:u
0.002042731 seconds time elapsed
0.000000000 seconds user
0.002377000 seconds sys
Note: nan IPC is printed as an effect of "perf metric: Use NAN for
missing event IDs." but earlier versions of perf just fail with a parse
error and display no value.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/util/evsel.c | 17 +++++
tools/perf/util/evsel.h | 2 +
tools/perf/util/parse-events-hybrid.c | 25 ++++---
tools/perf/util/parse-events-hybrid.h | 4 +-
tools/perf/util/parse-events.c | 95 ++++++++++++++++++---------
tools/perf/util/parse-events.h | 5 +-
tools/perf/util/parse-events.l | 1 +
tools/perf/util/pfm.c | 3 +-
8 files changed, 107 insertions(+), 45 deletions(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index dbfeceb2546c..96ef6a4a7c14 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -410,6 +410,11 @@ struct evsel *evsel__clone(struct evsel *orig)
if (evsel->filter == NULL)
goto out_err;
}
+ if (orig->metric_id) {
+ evsel->metric_id = strdup(orig->metric_id);
+ if (evsel->metric_id == NULL)
+ goto out_err;
+ }
evsel->cgrp = cgroup__get(orig->cgrp);
evsel->tp_format = orig->tp_format;
evsel->handler = orig->handler;
@@ -779,6 +784,17 @@ const char *evsel__name(struct evsel *evsel)
return "unknown";
}
+const char *evsel__metric_id(const struct evsel *evsel)
+{
+ if (evsel->metric_id)
+ return evsel->metric_id;
+
+ if (evsel->core.attr.type == PERF_TYPE_SOFTWARE && evsel->tool_event)
+ return "duration_time";
+
+ return "unknown";
+}
+
const char *evsel__group_name(struct evsel *evsel)
{
return evsel->group_name ?: "anon group";
@@ -1423,6 +1439,7 @@ void evsel__exit(struct evsel *evsel)
zfree(&evsel->group_name);
zfree(&evsel->name);
zfree(&evsel->pmu_name);
+ zfree(&evsel->metric_id);
evsel__zero_per_pkg(evsel);
hashmap__free(evsel->per_pkg_mask);
evsel->per_pkg_mask = NULL;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 1f7edfa8568a..45476a888942 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -68,6 +68,7 @@ struct evsel {
double scale;
const char *unit;
struct cgroup *cgrp;
+ const char *metric_id;
enum perf_tool_event tool_event;
/* parse modifier helper */
int exclude_GH;
@@ -261,6 +262,7 @@ bool evsel__match_bpf_counter_events(const char *name);
int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
const char *evsel__name(struct evsel *evsel);
+const char *evsel__metric_id(const struct evsel *evsel);
const char *evsel__group_name(struct evsel *evsel);
int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
diff --git a/tools/perf/util/parse-events-hybrid.c b/tools/perf/util/parse-events-hybrid.c
index 7e44deee1343..9fc86971027b 100644
--- a/tools/perf/util/parse-events-hybrid.c
+++ b/tools/perf/util/parse-events-hybrid.c
@@ -39,6 +39,7 @@ static void config_hybrid_attr(struct perf_event_attr *attr,
static int create_event_hybrid(__u32 config_type, int *idx,
struct list_head *list,
struct perf_event_attr *attr, const char *name,
+ const char *metric_id,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
@@ -47,7 +48,7 @@ static int create_event_hybrid(__u32 config_type, int *idx,
__u64 config = attr->config;
config_hybrid_attr(attr, config_type, pmu->type);
- evsel = parse_events__add_event_hybrid(list, idx, attr, name,
+ evsel = parse_events__add_event_hybrid(list, idx, attr, name, metric_id,
pmu, config_terms);
if (evsel)
evsel->pmu_name = strdup(pmu->name);
@@ -70,7 +71,8 @@ static int pmu_cmp(struct parse_events_state *parse_state,
static int add_hw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
- const char *name, struct list_head *config_terms)
+ const char *name, const char *metric_id,
+ struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
@@ -84,7 +86,7 @@ static int add_hw_hybrid(struct parse_events_state *parse_state,
copy_config_terms(&terms, config_terms);
ret = create_event_hybrid(PERF_TYPE_HARDWARE,
&parse_state->idx, list, attr, name,
- &terms, pmu);
+ metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
@@ -96,13 +98,14 @@ static int add_hw_hybrid(struct parse_events_state *parse_state,
static int create_raw_event_hybrid(int *idx, struct list_head *list,
struct perf_event_attr *attr,
const char *name,
+ const char *metric_id,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
struct evsel *evsel;
attr->type = pmu->type;
- evsel = parse_events__add_event_hybrid(list, idx, attr, name,
+ evsel = parse_events__add_event_hybrid(list, idx, attr, name, metric_id,
pmu, config_terms);
if (evsel)
evsel->pmu_name = strdup(pmu->name);
@@ -114,7 +117,8 @@ static int create_raw_event_hybrid(int *idx, struct list_head *list,
static int add_raw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
- const char *name, struct list_head *config_terms)
+ const char *name, const char *metric_id,
+ struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
@@ -127,7 +131,7 @@ static int add_raw_hybrid(struct parse_events_state *parse_state,
copy_config_terms(&terms, config_terms);
ret = create_raw_event_hybrid(&parse_state->idx, list, attr,
- name, &terms, pmu);
+ name, metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
@@ -139,7 +143,7 @@ static int add_raw_hybrid(struct parse_events_state *parse_state,
int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *list,
struct perf_event_attr *attr,
- const char *name,
+ const char *name, const char *metric_id,
struct list_head *config_terms,
bool *hybrid)
{
@@ -152,17 +156,18 @@ int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
*hybrid = true;
if (attr->type != PERF_TYPE_RAW) {
- return add_hw_hybrid(parse_state, list, attr, name,
+ return add_hw_hybrid(parse_state, list, attr, name, metric_id,
config_terms);
}
- return add_raw_hybrid(parse_state, list, attr, name,
+ return add_raw_hybrid(parse_state, list, attr, name, metric_id,
config_terms);
}
int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
const char *name,
+ const char *metric_id,
struct list_head *config_terms,
bool *hybrid,
struct parse_events_state *parse_state)
@@ -183,7 +188,7 @@ int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
copy_config_terms(&terms, config_terms);
ret = create_event_hybrid(PERF_TYPE_HW_CACHE, idx, list,
- attr, name, &terms, pmu);
+ attr, name, metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
diff --git a/tools/perf/util/parse-events-hybrid.h b/tools/perf/util/parse-events-hybrid.h
index 25a4a4f73f3a..cbc05fec02a2 100644
--- a/tools/perf/util/parse-events-hybrid.h
+++ b/tools/perf/util/parse-events-hybrid.h
@@ -11,13 +11,13 @@
int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *list,
struct perf_event_attr *attr,
- const char *name,
+ const char *name, const char *metric_id,
struct list_head *config_terms,
bool *hybrid);
int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- const char *name,
+ const char *name, const char *metric_id,
struct list_head *config_terms,
bool *hybrid,
struct parse_events_state *parse_state);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 88f181a985b7..89494b6213a6 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -332,12 +332,7 @@ const char *event_type(int type)
return "unknown";
}
-static int parse_events__is_name_term(struct parse_events_term *term)
-{
- return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
-}
-
-static const char *get_config_name(struct list_head *head_terms)
+static char *get_config_str(struct list_head *head_terms, int type_term)
{
struct parse_events_term *term;
@@ -345,17 +340,27 @@ static const char *get_config_name(struct list_head *head_terms)
return NULL;
list_for_each_entry(term, head_terms, list)
- if (parse_events__is_name_term(term))
+ if (term->type_term == type_term)
return term->val.str;
return NULL;
}
+static char *get_config_metric_id(struct list_head *head_terms)
+{
+ return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_METRIC_ID);
+}
+
+static char *get_config_name(struct list_head *head_terms)
+{
+ return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
+}
+
static struct evsel *
__add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr,
bool init_attr,
- const char *name, struct perf_pmu *pmu,
+ const char *name, const char *metric_id, struct perf_pmu *pmu,
struct list_head *config_terms, bool auto_merge_stats,
const char *cpu_list)
{
@@ -384,6 +389,9 @@ __add_event(struct list_head *list, int *idx,
if (name)
evsel->name = strdup(name);
+ if (metric_id)
+ evsel->metric_id = strdup(metric_id);
+
if (config_terms)
list_splice_init(config_terms, &evsel->config_terms);
@@ -394,18 +402,21 @@ __add_event(struct list_head *list, int *idx,
}
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
- const char *name, struct perf_pmu *pmu)
+ const char *name, const char *metric_id,
+ struct perf_pmu *pmu)
{
- return __add_event(NULL, &idx, attr, false, name, pmu, NULL, false,
- NULL);
+ return __add_event(/*list=*/NULL, &idx, attr, /*init_attr=*/false, name,
+ metric_id, pmu, /*config_terms=*/NULL,
+ /*auto_merge_stats=*/false, /*cpu_list=*/NULL);
}
static int add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr, const char *name,
- struct list_head *config_terms)
+ const char *metric_id, struct list_head *config_terms)
{
- return __add_event(list, idx, attr, true, name, NULL, config_terms,
- false, NULL) ? 0 : -ENOMEM;
+ return __add_event(list, idx, attr, /*init_attr*/true, name, metric_id,
+ /*pmu=*/NULL, config_terms,
+ /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM;
}
static int add_event_tool(struct list_head *list, int *idx,
@@ -417,8 +428,10 @@ static int add_event_tool(struct list_head *list, int *idx,
.config = PERF_COUNT_SW_DUMMY,
};
- evsel = __add_event(list, idx, &attr, true, NULL, NULL, NULL, false,
- "0");
+ evsel = __add_event(list, idx, &attr, /*init_attr=*/true, /*name=*/NULL,
+ /*metric_id=*/NULL, /*pmu=*/NULL,
+ /*config_terms=*/NULL, /*auto_merge_stats=*/false,
+ /*cpu_list=*/"0");
if (!evsel)
return -ENOMEM;
evsel->tool_event = tool_event;
@@ -465,7 +478,7 @@ int parse_events_add_cache(struct list_head *list, int *idx,
struct perf_event_attr attr;
LIST_HEAD(config_terms);
char name[MAX_NAME_LEN];
- const char *config_name;
+ const char *config_name, *metric_id;
int cache_type = -1, cache_op = -1, cache_result = -1;
char *op_result[2] = { op_result1, op_result2 };
int i, n, ret;
@@ -530,13 +543,17 @@ int parse_events_add_cache(struct list_head *list, int *idx,
return -ENOMEM;
}
+ metric_id = get_config_metric_id(head_config);
ret = parse_events__add_cache_hybrid(list, idx, &attr,
- config_name ? : name, &config_terms,
+ config_name ? : name,
+ metric_id,
+ &config_terms,
&hybrid, parse_state);
if (hybrid)
goto out_free_terms;
- ret = add_event(list, idx, &attr, config_name ? : name, &config_terms);
+ ret = add_event(list, idx, &attr, config_name ? : name, metric_id,
+ &config_terms);
out_free_terms:
free_config_terms(&config_terms);
return ret;
@@ -1013,7 +1030,8 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
attr.type = PERF_TYPE_BREAKPOINT;
attr.sample_period = 1;
- return add_event(list, idx, &attr, NULL, NULL);
+ return add_event(list, idx, &attr, /*name=*/NULL, /*mertic_id=*/NULL,
+ /*config_terms=*/NULL);
}
static int check_type_val(struct parse_events_term *term,
@@ -1058,6 +1076,7 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
[PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
[PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
[PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
+ [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id",
};
static bool config_term_shrinked;
@@ -1080,6 +1099,7 @@ config_term_avail(int term_type, struct parse_events_error *err)
case PARSE_EVENTS__TERM_TYPE_CONFIG1:
case PARSE_EVENTS__TERM_TYPE_CONFIG2:
case PARSE_EVENTS__TERM_TYPE_NAME:
+ case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
case PARSE_EVENTS__TERM_TYPE_PERCORE:
return true;
@@ -1170,6 +1190,9 @@ do { \
case PARSE_EVENTS__TERM_TYPE_NAME:
CHECK_TYPE_VAL(STR);
break;
+ case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
+ CHECK_TYPE_VAL(STR);
+ break;
case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
CHECK_TYPE_VAL(NUM);
break;
@@ -1439,6 +1462,7 @@ int parse_events_add_numeric(struct parse_events_state *parse_state,
{
struct perf_event_attr attr;
LIST_HEAD(config_terms);
+ const char *name, *metric_id;
bool hybrid;
int ret;
@@ -1455,14 +1479,16 @@ int parse_events_add_numeric(struct parse_events_state *parse_state,
return -ENOMEM;
}
+ name = get_config_name(head_config);
+ metric_id = get_config_metric_id(head_config);
ret = parse_events__add_numeric_hybrid(parse_state, list, &attr,
- get_config_name(head_config),
+ name, metric_id,
&config_terms, &hybrid);
if (hybrid)
goto out_free_terms;
- ret = add_event(list, &parse_state->idx, &attr,
- get_config_name(head_config), &config_terms);
+ ret = add_event(list, &parse_state->idx, &attr, name, metric_id,
+ &config_terms);
out_free_terms:
free_config_terms(&config_terms);
return ret;
@@ -1563,8 +1589,11 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
if (!head_config) {
attr.type = pmu->type;
- evsel = __add_event(list, &parse_state->idx, &attr, true, NULL,
- pmu, NULL, auto_merge_stats, NULL);
+ evsel = __add_event(list, &parse_state->idx, &attr,
+ /*init_attr=*/true, /*name=*/NULL,
+ /*metric_id=*/NULL, pmu,
+ /*config_terms=*/NULL, auto_merge_stats,
+ /*cpu_list=*/NULL);
if (evsel) {
evsel->pmu_name = name ? strdup(name) : NULL;
evsel->use_uncore_alias = use_uncore_alias;
@@ -1617,9 +1646,10 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
return -EINVAL;
}
- evsel = __add_event(list, &parse_state->idx, &attr, true,
- get_config_name(head_config), pmu,
- &config_terms, auto_merge_stats, NULL);
+ evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
+ get_config_name(head_config),
+ get_config_metric_id(head_config), pmu,
+ &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
if (!evsel)
return -ENOMEM;
@@ -3345,9 +3375,12 @@ char *parse_events_formats_error_string(char *additional_terms)
struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- const char *name, struct perf_pmu *pmu,
+ const char *name,
+ const char *metric_id,
+ struct perf_pmu *pmu,
struct list_head *config_terms)
{
- return __add_event(list, idx, attr, true, name, pmu,
- config_terms, false, NULL);
+ return __add_event(list, idx, attr, /*init_attr=*/true, name, metric_id,
+ pmu, config_terms, /*auto_merge_stats=*/false,
+ /*cpu_list=*/NULL);
}
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 54d24c24d074..c6c8343d311b 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -87,6 +87,7 @@ enum {
PARSE_EVENTS__TERM_TYPE_PERCORE,
PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE,
+ PARSE_EVENTS__TERM_TYPE_METRIC_ID,
__PARSE_EVENTS__TERM_TYPE_NR,
};
@@ -199,7 +200,8 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
bool use_alias);
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
- const char *name, struct perf_pmu *pmu);
+ const char *name, const char *metric_id,
+ struct perf_pmu *pmu);
int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
char *str,
@@ -267,6 +269,7 @@ int perf_pmu__test_parse_init(void);
struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
const char *name,
+ const char *metric_id,
struct perf_pmu *pmu,
struct list_head *config_terms);
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 47da7a0c5df4..b1e29b97d261 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -294,6 +294,7 @@ no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
aux-sample-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
+metric-id { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); }
r{num_raw_hex} { return raw(yyscanner); }
r0x{num_raw_hex} { return raw(yyscanner); }
, { return ','; }
diff --git a/tools/perf/util/pfm.c b/tools/perf/util/pfm.c
index 756295dedccc..f0bcfcab1a93 100644
--- a/tools/perf/util/pfm.c
+++ b/tools/perf/util/pfm.c
@@ -87,7 +87,8 @@ int parse_libpfm_events_option(const struct option *opt, const char *str,
pmu = perf_pmu__find_by_type((unsigned int)attr.type);
evsel = parse_events__add_event(evlist->core.nr_entries,
- &attr, q, pmu);
+ &attr, q, /*metric_id=*/NULL,
+ pmu);
if (evsel == NULL)
goto error;
--
2.33.0.882.g93a45727a2-goog
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