The -C option allows the CPUs for a list of events to be specified but
its not possible to set the CPU for a single event. Add a term to
allow this. The term isn't a general CPU list due to ',' already being
a special character in event parsing instead multiple cpu= terms may
be provided and they will be merged/unioned together.
An example of mixing different types of events counted on different CPUs:
```
$ perf stat -A -C 0,4-5,8 -e "instructions/cpu=0/,l1d-misses/cpu=4,cpu=5/,inst_retired.any/cpu=8/,cycles" -a sleep 0.1
Performance counter stats for 'system wide':
CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
CPU4 <not counted> instructions/cpu=0/
CPU5 <not counted> instructions/cpu=0/
CPU8 <not counted> instructions/cpu=0/
CPU0 <not counted> l1d-misses [cpu]
CPU4 203,377 l1d-misses [cpu]
CPU5 138,231 l1d-misses [cpu]
CPU8 <not counted> l1d-misses [cpu]
CPU0 <not counted> cpu/cpu=8/
CPU4 <not counted> cpu/cpu=8/
CPU5 <not counted> cpu/cpu=8/
CPU8 943,861 cpu/cpu=8/
CPU0 1,412,071 cycles
CPU4 20,362,900 cycles
CPU5 10,172,725 cycles
CPU8 2,406,081 cycles
0.102925309 seconds time elapsed
```
Note, the event name of inst_retired.any is missing, reported as
cpu/cpu=8/, as there are unmerged uniquify fixes:
https://lore.kernel.org/lkml/20240510053705.2462258-3-irogers@google.com/
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/Documentation/perf-list.txt | 9 ++++
tools/perf/util/evsel_config.h | 1 +
tools/perf/util/parse-events.c | 71 ++++++++++++++++++++++----
tools/perf/util/parse-events.h | 3 +-
tools/perf/util/parse-events.l | 1 +
tools/perf/util/pmu.c | 1 +
6 files changed, 74 insertions(+), 12 deletions(-)
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index dea005410ec0..e0cd9bb8283e 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -274,6 +274,15 @@ Sums up the event counts for all hardware threads in a core, e.g.:
perf stat -e cpu/event=0,umask=0x3,percore=1/
+cpu:
+
+Specifies the CPU to open the event upon. The value may be repeated to
+specify opening the event on multiple CPUs:
+
+
+ perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
+ perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
+
EVENT GROUPS
------------
diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h
index aee6f808b512..9630c4a24721 100644
--- a/tools/perf/util/evsel_config.h
+++ b/tools/perf/util/evsel_config.h
@@ -47,6 +47,7 @@ struct evsel_config_term {
u32 aux_sample_size;
u64 cfg_chg;
char *str;
+ int cpu;
} val;
bool weak;
};
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 017d31d51ea4..63c31cfdd79b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -7,6 +7,7 @@
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/param.h>
+#include "cpumap.h"
#include "term.h"
#include "env.h"
#include "evlist.h"
@@ -178,6 +179,26 @@ static char *get_config_name(const struct parse_events_terms *head_terms)
return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
}
+static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head_terms)
+{
+ struct parse_events_term *term;
+ struct perf_cpu_map *cpus = NULL;
+
+ if (!head_terms)
+ return NULL;
+
+ list_for_each_entry(term, &head_terms->terms, list) {
+ if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
+ struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
+
+ cpus = perf_cpu_map__merge(cpus, cpu);
+ perf_cpu_map__put(cpu);
+ }
+ }
+
+ return cpus;
+}
+
/**
* fix_raw - For each raw term see if there is an event (aka alias) in pmu that
* matches the raw's string value. If the string value matches an
@@ -469,11 +490,12 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
bool found_supported = false;
const char *config_name = get_config_name(parsed_terms);
const char *metric_id = get_config_metric_id(parsed_terms);
+ struct perf_cpu_map *cpus = get_config_cpu(parsed_terms);
+ int ret = 0;
while ((pmu = perf_pmus__scan(pmu)) != NULL) {
LIST_HEAD(config_terms);
struct perf_event_attr attr;
- int ret;
if (parse_events__filter_pmu(parse_state, pmu))
continue;
@@ -487,7 +509,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
parsed_terms,
perf_pmu__auto_merge_stats(pmu));
if (ret)
- return ret;
+ goto out_err;
continue;
}
@@ -507,20 +529,27 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
if (parsed_terms) {
if (config_attr(&attr, parsed_terms, parse_state->error,
- config_term_common))
- return -EINVAL;
-
- if (get_config_terms(parsed_terms, &config_terms))
- return -ENOMEM;
+ config_term_common)) {
+ ret = -EINVAL;
+ goto out_err;
+ }
+ if (get_config_terms(parsed_terms, &config_terms)) {
+ ret = -ENOMEM;
+ goto out_err;
+ }
}
if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
- /*cpu_list=*/NULL) == NULL)
- return -ENOMEM;
+ cpus) == NULL)
+ ret = -ENOMEM;
free_config_terms(&config_terms);
+ if (ret)
+ goto out_err;
}
+out_err:
+ perf_cpu_map__put(cpus);
return found_supported ? 0 : -EINVAL;
}
@@ -835,6 +864,7 @@ static const char *config_term_name(enum parse_events__term_type term_type)
[PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
[PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache",
[PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware",
+ [PARSE_EVENTS__TERM_TYPE_CPU] = "cpu",
};
if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR)
return "unknown term";
@@ -864,6 +894,7 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
case PARSE_EVENTS__TERM_TYPE_PERCORE:
+ case PARSE_EVENTS__TERM_TYPE_CPU:
return true;
case PARSE_EVENTS__TERM_TYPE_USER:
case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
@@ -1007,6 +1038,15 @@ do { \
return -EINVAL;
}
break;
+ case PARSE_EVENTS__TERM_TYPE_CPU:
+ CHECK_TYPE_VAL(NUM);
+ if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
+ parse_events_error__handle(err, term->err_val,
+ strdup("too big"),
+ NULL);
+ return -EINVAL;
+ }
+ break;
case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
case PARSE_EVENTS__TERM_TYPE_USER:
case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
@@ -1133,6 +1173,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
case PARSE_EVENTS__TERM_TYPE_RAW:
case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
case PARSE_EVENTS__TERM_TYPE_HARDWARE:
+ case PARSE_EVENTS__TERM_TYPE_CPU:
default:
if (err) {
parse_events_error__handle(err, term->err_term,
@@ -1264,6 +1305,7 @@ do { \
case PARSE_EVENTS__TERM_TYPE_RAW:
case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
case PARSE_EVENTS__TERM_TYPE_HARDWARE:
+ case PARSE_EVENTS__TERM_TYPE_CPU:
default:
break;
}
@@ -1317,6 +1359,7 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
case PARSE_EVENTS__TERM_TYPE_RAW:
case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
case PARSE_EVENTS__TERM_TYPE_HARDWARE:
+ case PARSE_EVENTS__TERM_TYPE_CPU:
default:
break;
}
@@ -1371,6 +1414,7 @@ static 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;
+ struct perf_cpu_map *cpus;
int ret;
memset(&attr, 0, sizeof(attr));
@@ -1392,9 +1436,11 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state,
name = get_config_name(head_config);
metric_id = get_config_metric_id(head_config);
+ cpus = get_config_cpu(head_config);
ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name,
metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
- /*cpu_list=*/NULL) ? 0 : -ENOMEM;
+ cpus) ? 0 : -ENOMEM;
+ perf_cpu_map__put(cpus);
free_config_terms(&config_terms);
return ret;
}
@@ -1461,6 +1507,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
LIST_HEAD(config_terms);
struct parse_events_terms parsed_terms;
bool alias_rewrote_terms = false;
+ struct perf_cpu_map *term_cpu = NULL;
if (verbose > 1) {
struct strbuf sb;
@@ -1552,10 +1599,12 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
return -EINVAL;
}
+ term_cpu = get_config_cpu(&parsed_terms);
evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
get_config_name(&parsed_terms),
get_config_metric_id(&parsed_terms), pmu,
- &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
+ &config_terms, auto_merge_stats, term_cpu);
+ perf_cpu_map__put(term_cpu);
if (!evsel) {
parse_events_terms__exit(&parsed_terms);
return -ENOMEM;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 10cc9c433116..2532c81d4f9a 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -79,7 +79,8 @@ enum parse_events__term_type {
PARSE_EVENTS__TERM_TYPE_RAW,
PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
PARSE_EVENTS__TERM_TYPE_HARDWARE,
-#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
+ PARSE_EVENTS__TERM_TYPE_CPU,
+#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_CPU + 1)
};
struct parse_events_term {
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 5a0bcd7f166a..635d216632d7 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -331,6 +331,7 @@ 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); }
+cpu { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CPU); }
cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 61bdda01a05a..4f68026a97bb 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1738,6 +1738,7 @@ int perf_pmu__for_each_format(struct perf_pmu *pmu, void *state, pmu_format_call
"percore",
"aux-output",
"aux-sample-size=number",
+ "cpu=number",
};
struct perf_pmu_format *format;
int ret;
--
2.46.0.662.g92d0881bb0-googOn Thu, Sep 19, 2024 at 12:01:33AM +0200, Ian Rogers wrote:
> The -C option allows the CPUs for a list of events to be specified but
> its not possible to set the CPU for a single event. Add a term to
> allow this. The term isn't a general CPU list due to ',' already being
> a special character in event parsing instead multiple cpu= terms may
> be provided and they will be merged/unioned together.
>
> An example of mixing different types of events counted on different CPUs:
> ```
> $ perf stat -A -C 0,4-5,8 -e "instructions/cpu=0/,l1d-misses/cpu=4,cpu=5/,inst_retired.any/cpu=8/,cycles" -a sleep 0.1
>
> Performance counter stats for 'system wide':
>
> CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
> CPU4 <not counted> instructions/cpu=0/
> CPU5 <not counted> instructions/cpu=0/
> CPU8 <not counted> instructions/cpu=0/
I think this should have an entry for CPU0 only. IOW the cpu parameter
in the event specification has a higher priority than -C option.
Thanks,
Namhyung
> CPU0 <not counted> l1d-misses [cpu]
> CPU4 203,377 l1d-misses [cpu]
> CPU5 138,231 l1d-misses [cpu]
> CPU8 <not counted> l1d-misses [cpu]
> CPU0 <not counted> cpu/cpu=8/
> CPU4 <not counted> cpu/cpu=8/
> CPU5 <not counted> cpu/cpu=8/
> CPU8 943,861 cpu/cpu=8/
> CPU0 1,412,071 cycles
> CPU4 20,362,900 cycles
> CPU5 10,172,725 cycles
> CPU8 2,406,081 cycles
>
> 0.102925309 seconds time elapsed
> ```
>
> Note, the event name of inst_retired.any is missing, reported as
> cpu/cpu=8/, as there are unmerged uniquify fixes:
> https://lore.kernel.org/lkml/20240510053705.2462258-3-irogers@google.com/
>
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
> tools/perf/Documentation/perf-list.txt | 9 ++++
> tools/perf/util/evsel_config.h | 1 +
> tools/perf/util/parse-events.c | 71 ++++++++++++++++++++++----
> tools/perf/util/parse-events.h | 3 +-
> tools/perf/util/parse-events.l | 1 +
> tools/perf/util/pmu.c | 1 +
> 6 files changed, 74 insertions(+), 12 deletions(-)
>
> diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
> index dea005410ec0..e0cd9bb8283e 100644
> --- a/tools/perf/Documentation/perf-list.txt
> +++ b/tools/perf/Documentation/perf-list.txt
> @@ -274,6 +274,15 @@ Sums up the event counts for all hardware threads in a core, e.g.:
>
> perf stat -e cpu/event=0,umask=0x3,percore=1/
>
> +cpu:
> +
> +Specifies the CPU to open the event upon. The value may be repeated to
> +specify opening the event on multiple CPUs:
> +
> +
> + perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
> + perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
> +
>
> EVENT GROUPS
> ------------
> diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h
> index aee6f808b512..9630c4a24721 100644
> --- a/tools/perf/util/evsel_config.h
> +++ b/tools/perf/util/evsel_config.h
> @@ -47,6 +47,7 @@ struct evsel_config_term {
> u32 aux_sample_size;
> u64 cfg_chg;
> char *str;
> + int cpu;
> } val;
> bool weak;
> };
> diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> index 017d31d51ea4..63c31cfdd79b 100644
> --- a/tools/perf/util/parse-events.c
> +++ b/tools/perf/util/parse-events.c
> @@ -7,6 +7,7 @@
> #include <errno.h>
> #include <sys/ioctl.h>
> #include <sys/param.h>
> +#include "cpumap.h"
> #include "term.h"
> #include "env.h"
> #include "evlist.h"
> @@ -178,6 +179,26 @@ static char *get_config_name(const struct parse_events_terms *head_terms)
> return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
> }
>
> +static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head_terms)
> +{
> + struct parse_events_term *term;
> + struct perf_cpu_map *cpus = NULL;
> +
> + if (!head_terms)
> + return NULL;
> +
> + list_for_each_entry(term, &head_terms->terms, list) {
> + if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
> + struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
> +
> + cpus = perf_cpu_map__merge(cpus, cpu);
> + perf_cpu_map__put(cpu);
> + }
> + }
> +
> + return cpus;
> +}
> +
> /**
> * fix_raw - For each raw term see if there is an event (aka alias) in pmu that
> * matches the raw's string value. If the string value matches an
> @@ -469,11 +490,12 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> bool found_supported = false;
> const char *config_name = get_config_name(parsed_terms);
> const char *metric_id = get_config_metric_id(parsed_terms);
> + struct perf_cpu_map *cpus = get_config_cpu(parsed_terms);
> + int ret = 0;
>
> while ((pmu = perf_pmus__scan(pmu)) != NULL) {
> LIST_HEAD(config_terms);
> struct perf_event_attr attr;
> - int ret;
>
> if (parse_events__filter_pmu(parse_state, pmu))
> continue;
> @@ -487,7 +509,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> parsed_terms,
> perf_pmu__auto_merge_stats(pmu));
> if (ret)
> - return ret;
> + goto out_err;
> continue;
> }
>
> @@ -507,20 +529,27 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
>
> if (parsed_terms) {
> if (config_attr(&attr, parsed_terms, parse_state->error,
> - config_term_common))
> - return -EINVAL;
> -
> - if (get_config_terms(parsed_terms, &config_terms))
> - return -ENOMEM;
> + config_term_common)) {
> + ret = -EINVAL;
> + goto out_err;
> + }
> + if (get_config_terms(parsed_terms, &config_terms)) {
> + ret = -ENOMEM;
> + goto out_err;
> + }
> }
>
> if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
> metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> - /*cpu_list=*/NULL) == NULL)
> - return -ENOMEM;
> + cpus) == NULL)
> + ret = -ENOMEM;
>
> free_config_terms(&config_terms);
> + if (ret)
> + goto out_err;
> }
> +out_err:
> + perf_cpu_map__put(cpus);
> return found_supported ? 0 : -EINVAL;
> }
>
> @@ -835,6 +864,7 @@ static const char *config_term_name(enum parse_events__term_type term_type)
> [PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
> [PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache",
> [PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware",
> + [PARSE_EVENTS__TERM_TYPE_CPU] = "cpu",
> };
> if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR)
> return "unknown term";
> @@ -864,6 +894,7 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
> case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
> case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
> case PARSE_EVENTS__TERM_TYPE_PERCORE:
> + case PARSE_EVENTS__TERM_TYPE_CPU:
> return true;
> case PARSE_EVENTS__TERM_TYPE_USER:
> case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
> @@ -1007,6 +1038,15 @@ do { \
> return -EINVAL;
> }
> break;
> + case PARSE_EVENTS__TERM_TYPE_CPU:
> + CHECK_TYPE_VAL(NUM);
> + if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
> + parse_events_error__handle(err, term->err_val,
> + strdup("too big"),
> + NULL);
> + return -EINVAL;
> + }
> + break;
> case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
> case PARSE_EVENTS__TERM_TYPE_USER:
> case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> @@ -1133,6 +1173,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
> case PARSE_EVENTS__TERM_TYPE_RAW:
> case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> + case PARSE_EVENTS__TERM_TYPE_CPU:
> default:
> if (err) {
> parse_events_error__handle(err, term->err_term,
> @@ -1264,6 +1305,7 @@ do { \
> case PARSE_EVENTS__TERM_TYPE_RAW:
> case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> + case PARSE_EVENTS__TERM_TYPE_CPU:
> default:
> break;
> }
> @@ -1317,6 +1359,7 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
> case PARSE_EVENTS__TERM_TYPE_RAW:
> case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> + case PARSE_EVENTS__TERM_TYPE_CPU:
> default:
> break;
> }
> @@ -1371,6 +1414,7 @@ static 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;
> + struct perf_cpu_map *cpus;
> int ret;
>
> memset(&attr, 0, sizeof(attr));
> @@ -1392,9 +1436,11 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state,
>
> name = get_config_name(head_config);
> metric_id = get_config_metric_id(head_config);
> + cpus = get_config_cpu(head_config);
> ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name,
> metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> - /*cpu_list=*/NULL) ? 0 : -ENOMEM;
> + cpus) ? 0 : -ENOMEM;
> + perf_cpu_map__put(cpus);
> free_config_terms(&config_terms);
> return ret;
> }
> @@ -1461,6 +1507,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> LIST_HEAD(config_terms);
> struct parse_events_terms parsed_terms;
> bool alias_rewrote_terms = false;
> + struct perf_cpu_map *term_cpu = NULL;
>
> if (verbose > 1) {
> struct strbuf sb;
> @@ -1552,10 +1599,12 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> return -EINVAL;
> }
>
> + term_cpu = get_config_cpu(&parsed_terms);
> evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
> get_config_name(&parsed_terms),
> get_config_metric_id(&parsed_terms), pmu,
> - &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
> + &config_terms, auto_merge_stats, term_cpu);
> + perf_cpu_map__put(term_cpu);
> if (!evsel) {
> parse_events_terms__exit(&parsed_terms);
> return -ENOMEM;
> diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
> index 10cc9c433116..2532c81d4f9a 100644
> --- a/tools/perf/util/parse-events.h
> +++ b/tools/perf/util/parse-events.h
> @@ -79,7 +79,8 @@ enum parse_events__term_type {
> PARSE_EVENTS__TERM_TYPE_RAW,
> PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
> PARSE_EVENTS__TERM_TYPE_HARDWARE,
> -#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
> + PARSE_EVENTS__TERM_TYPE_CPU,
> +#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_CPU + 1)
> };
>
> struct parse_events_term {
> diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> index 5a0bcd7f166a..635d216632d7 100644
> --- a/tools/perf/util/parse-events.l
> +++ b/tools/perf/util/parse-events.l
> @@ -331,6 +331,7 @@ 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); }
> +cpu { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CPU); }
> cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> index 61bdda01a05a..4f68026a97bb 100644
> --- a/tools/perf/util/pmu.c
> +++ b/tools/perf/util/pmu.c
> @@ -1738,6 +1738,7 @@ int perf_pmu__for_each_format(struct perf_pmu *pmu, void *state, pmu_format_call
> "percore",
> "aux-output",
> "aux-sample-size=number",
> + "cpu=number",
> };
> struct perf_pmu_format *format;
> int ret;
> --
> 2.46.0.662.g92d0881bb0-goog
>
On Mon, Sep 30, 2024 at 2:42 PM Namhyung Kim <namhyung@kernel.org> wrote:
>
> On Thu, Sep 19, 2024 at 12:01:33AM +0200, Ian Rogers wrote:
> > The -C option allows the CPUs for a list of events to be specified but
> > its not possible to set the CPU for a single event. Add a term to
> > allow this. The term isn't a general CPU list due to ',' already being
> > a special character in event parsing instead multiple cpu= terms may
> > be provided and they will be merged/unioned together.
> >
> > An example of mixing different types of events counted on different CPUs:
> > ```
> > $ perf stat -A -C 0,4-5,8 -e "instructions/cpu=0/,l1d-misses/cpu=4,cpu=5/,inst_retired.any/cpu=8/,cycles" -a sleep 0.1
> >
> > Performance counter stats for 'system wide':
> >
> > CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
> > CPU4 <not counted> instructions/cpu=0/
> > CPU5 <not counted> instructions/cpu=0/
> > CPU8 <not counted> instructions/cpu=0/
>
> I think this should have an entry for CPU0 only. IOW the cpu parameter
> in the event specification has a higher priority than -C option.
I think you are agreeing with what the output shows and what is
written in the commit message. See below for cleaning up the stat
output.
Thanks,
Ian
> Thanks,
> Namhyung
>
>
> > CPU0 <not counted> l1d-misses [cpu]
> > CPU4 203,377 l1d-misses [cpu]
> > CPU5 138,231 l1d-misses [cpu]
> > CPU8 <not counted> l1d-misses [cpu]
> > CPU0 <not counted> cpu/cpu=8/
> > CPU4 <not counted> cpu/cpu=8/
> > CPU5 <not counted> cpu/cpu=8/
> > CPU8 943,861 cpu/cpu=8/
> > CPU0 1,412,071 cycles
> > CPU4 20,362,900 cycles
> > CPU5 10,172,725 cycles
> > CPU8 2,406,081 cycles
> >
> > 0.102925309 seconds time elapsed
> > ```
> >
> > Note, the event name of inst_retired.any is missing, reported as
> > cpu/cpu=8/, as there are unmerged uniquify fixes:
> > https://lore.kernel.org/lkml/20240510053705.2462258-3-irogers@google.com/
> >
> > Signed-off-by: Ian Rogers <irogers@google.com>
> > ---
> > tools/perf/Documentation/perf-list.txt | 9 ++++
> > tools/perf/util/evsel_config.h | 1 +
> > tools/perf/util/parse-events.c | 71 ++++++++++++++++++++++----
> > tools/perf/util/parse-events.h | 3 +-
> > tools/perf/util/parse-events.l | 1 +
> > tools/perf/util/pmu.c | 1 +
> > 6 files changed, 74 insertions(+), 12 deletions(-)
> >
> > diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
> > index dea005410ec0..e0cd9bb8283e 100644
> > --- a/tools/perf/Documentation/perf-list.txt
> > +++ b/tools/perf/Documentation/perf-list.txt
> > @@ -274,6 +274,15 @@ Sums up the event counts for all hardware threads in a core, e.g.:
> >
> > perf stat -e cpu/event=0,umask=0x3,percore=1/
> >
> > +cpu:
> > +
> > +Specifies the CPU to open the event upon. The value may be repeated to
> > +specify opening the event on multiple CPUs:
> > +
> > +
> > + perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
> > + perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
> > +
> >
> > EVENT GROUPS
> > ------------
> > diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h
> > index aee6f808b512..9630c4a24721 100644
> > --- a/tools/perf/util/evsel_config.h
> > +++ b/tools/perf/util/evsel_config.h
> > @@ -47,6 +47,7 @@ struct evsel_config_term {
> > u32 aux_sample_size;
> > u64 cfg_chg;
> > char *str;
> > + int cpu;
> > } val;
> > bool weak;
> > };
> > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> > index 017d31d51ea4..63c31cfdd79b 100644
> > --- a/tools/perf/util/parse-events.c
> > +++ b/tools/perf/util/parse-events.c
> > @@ -7,6 +7,7 @@
> > #include <errno.h>
> > #include <sys/ioctl.h>
> > #include <sys/param.h>
> > +#include "cpumap.h"
> > #include "term.h"
> > #include "env.h"
> > #include "evlist.h"
> > @@ -178,6 +179,26 @@ static char *get_config_name(const struct parse_events_terms *head_terms)
> > return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
> > }
> >
> > +static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head_terms)
> > +{
> > + struct parse_events_term *term;
> > + struct perf_cpu_map *cpus = NULL;
> > +
> > + if (!head_terms)
> > + return NULL;
> > +
> > + list_for_each_entry(term, &head_terms->terms, list) {
> > + if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
> > + struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
> > +
> > + cpus = perf_cpu_map__merge(cpus, cpu);
> > + perf_cpu_map__put(cpu);
> > + }
> > + }
> > +
> > + return cpus;
> > +}
> > +
> > /**
> > * fix_raw - For each raw term see if there is an event (aka alias) in pmu that
> > * matches the raw's string value. If the string value matches an
> > @@ -469,11 +490,12 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > bool found_supported = false;
> > const char *config_name = get_config_name(parsed_terms);
> > const char *metric_id = get_config_metric_id(parsed_terms);
> > + struct perf_cpu_map *cpus = get_config_cpu(parsed_terms);
> > + int ret = 0;
> >
> > while ((pmu = perf_pmus__scan(pmu)) != NULL) {
> > LIST_HEAD(config_terms);
> > struct perf_event_attr attr;
> > - int ret;
> >
> > if (parse_events__filter_pmu(parse_state, pmu))
> > continue;
> > @@ -487,7 +509,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > parsed_terms,
> > perf_pmu__auto_merge_stats(pmu));
> > if (ret)
> > - return ret;
> > + goto out_err;
> > continue;
> > }
> >
> > @@ -507,20 +529,27 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> >
> > if (parsed_terms) {
> > if (config_attr(&attr, parsed_terms, parse_state->error,
> > - config_term_common))
> > - return -EINVAL;
> > -
> > - if (get_config_terms(parsed_terms, &config_terms))
> > - return -ENOMEM;
> > + config_term_common)) {
> > + ret = -EINVAL;
> > + goto out_err;
> > + }
> > + if (get_config_terms(parsed_terms, &config_terms)) {
> > + ret = -ENOMEM;
> > + goto out_err;
> > + }
> > }
> >
> > if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
> > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > - /*cpu_list=*/NULL) == NULL)
> > - return -ENOMEM;
> > + cpus) == NULL)
> > + ret = -ENOMEM;
> >
> > free_config_terms(&config_terms);
> > + if (ret)
> > + goto out_err;
> > }
> > +out_err:
> > + perf_cpu_map__put(cpus);
> > return found_supported ? 0 : -EINVAL;
> > }
> >
> > @@ -835,6 +864,7 @@ static const char *config_term_name(enum parse_events__term_type term_type)
> > [PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
> > [PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache",
> > [PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware",
> > + [PARSE_EVENTS__TERM_TYPE_CPU] = "cpu",
> > };
> > if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR)
> > return "unknown term";
> > @@ -864,6 +894,7 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
> > case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
> > case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
> > case PARSE_EVENTS__TERM_TYPE_PERCORE:
> > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > return true;
> > case PARSE_EVENTS__TERM_TYPE_USER:
> > case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
> > @@ -1007,6 +1038,15 @@ do { \
> > return -EINVAL;
> > }
> > break;
> > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > + CHECK_TYPE_VAL(NUM);
> > + if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
> > + parse_events_error__handle(err, term->err_val,
> > + strdup("too big"),
> > + NULL);
> > + return -EINVAL;
> > + }
> > + break;
> > case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
> > case PARSE_EVENTS__TERM_TYPE_USER:
> > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > @@ -1133,6 +1173,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
> > case PARSE_EVENTS__TERM_TYPE_RAW:
> > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > default:
> > if (err) {
> > parse_events_error__handle(err, term->err_term,
> > @@ -1264,6 +1305,7 @@ do { \
> > case PARSE_EVENTS__TERM_TYPE_RAW:
> > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > default:
> > break;
> > }
> > @@ -1317,6 +1359,7 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
> > case PARSE_EVENTS__TERM_TYPE_RAW:
> > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > default:
> > break;
> > }
> > @@ -1371,6 +1414,7 @@ static 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;
> > + struct perf_cpu_map *cpus;
> > int ret;
> >
> > memset(&attr, 0, sizeof(attr));
> > @@ -1392,9 +1436,11 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state,
> >
> > name = get_config_name(head_config);
> > metric_id = get_config_metric_id(head_config);
> > + cpus = get_config_cpu(head_config);
> > ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name,
> > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > - /*cpu_list=*/NULL) ? 0 : -ENOMEM;
> > + cpus) ? 0 : -ENOMEM;
> > + perf_cpu_map__put(cpus);
> > free_config_terms(&config_terms);
> > return ret;
> > }
> > @@ -1461,6 +1507,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > LIST_HEAD(config_terms);
> > struct parse_events_terms parsed_terms;
> > bool alias_rewrote_terms = false;
> > + struct perf_cpu_map *term_cpu = NULL;
> >
> > if (verbose > 1) {
> > struct strbuf sb;
> > @@ -1552,10 +1599,12 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > return -EINVAL;
> > }
> >
> > + term_cpu = get_config_cpu(&parsed_terms);
> > evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
> > get_config_name(&parsed_terms),
> > get_config_metric_id(&parsed_terms), pmu,
> > - &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
> > + &config_terms, auto_merge_stats, term_cpu);
> > + perf_cpu_map__put(term_cpu);
> > if (!evsel) {
> > parse_events_terms__exit(&parsed_terms);
> > return -ENOMEM;
> > diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
> > index 10cc9c433116..2532c81d4f9a 100644
> > --- a/tools/perf/util/parse-events.h
> > +++ b/tools/perf/util/parse-events.h
> > @@ -79,7 +79,8 @@ enum parse_events__term_type {
> > PARSE_EVENTS__TERM_TYPE_RAW,
> > PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
> > PARSE_EVENTS__TERM_TYPE_HARDWARE,
> > -#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
> > + PARSE_EVENTS__TERM_TYPE_CPU,
> > +#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_CPU + 1)
> > };
> >
> > struct parse_events_term {
> > diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> > index 5a0bcd7f166a..635d216632d7 100644
> > --- a/tools/perf/util/parse-events.l
> > +++ b/tools/perf/util/parse-events.l
> > @@ -331,6 +331,7 @@ 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); }
> > +cpu { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CPU); }
> > cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> > stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> > stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> > diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> > index 61bdda01a05a..4f68026a97bb 100644
> > --- a/tools/perf/util/pmu.c
> > +++ b/tools/perf/util/pmu.c
> > @@ -1738,6 +1738,7 @@ int perf_pmu__for_each_format(struct perf_pmu *pmu, void *state, pmu_format_call
> > "percore",
> > "aux-output",
> > "aux-sample-size=number",
> > + "cpu=number",
> > };
> > struct perf_pmu_format *format;
> > int ret;
> > --
> > 2.46.0.662.g92d0881bb0-goog
> >
On Mon, Sep 30, 2024 at 07:03:35PM -0700, Ian Rogers wrote:
> On Mon, Sep 30, 2024 at 2:42 PM Namhyung Kim <namhyung@kernel.org> wrote:
> >
> > On Thu, Sep 19, 2024 at 12:01:33AM +0200, Ian Rogers wrote:
> > > The -C option allows the CPUs for a list of events to be specified but
> > > its not possible to set the CPU for a single event. Add a term to
> > > allow this. The term isn't a general CPU list due to ',' already being
> > > a special character in event parsing instead multiple cpu= terms may
> > > be provided and they will be merged/unioned together.
> > >
> > > An example of mixing different types of events counted on different CPUs:
> > > ```
> > > $ perf stat -A -C 0,4-5,8 -e "instructions/cpu=0/,l1d-misses/cpu=4,cpu=5/,inst_retired.any/cpu=8/,cycles" -a sleep 0.1
> > >
> > > Performance counter stats for 'system wide':
> > >
> > > CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
> > > CPU4 <not counted> instructions/cpu=0/
> > > CPU5 <not counted> instructions/cpu=0/
> > > CPU8 <not counted> instructions/cpu=0/
> >
> > I think this should have an entry for CPU0 only. IOW the cpu parameter
> > in the event specification has a higher priority than -C option.
>
> I think you are agreeing with what the output shows and what is
> written in the commit message. See below for cleaning up the stat
> output.
I agree it'd be helpful if we can specify different CPUs for each event.
But I want the output omitting the not counted events on other CPUs like
CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
CPU4 203,377 l1d-misses [cpu]
CPU5 138,231 l1d-misses [cpu]
CPU8 943,861 cpu/cpu=8/
CPU0 1,412,071 cycles
CPU4 20,362,900 cycles
CPU5 10,172,725 cycles
CPU8 2,406,081 cycles
Thanks,
Namhyung
> >
> >
> > > CPU0 <not counted> l1d-misses [cpu]
> > > CPU4 203,377 l1d-misses [cpu]
> > > CPU5 138,231 l1d-misses [cpu]
> > > CPU8 <not counted> l1d-misses [cpu]
> > > CPU0 <not counted> cpu/cpu=8/
> > > CPU4 <not counted> cpu/cpu=8/
> > > CPU5 <not counted> cpu/cpu=8/
> > > CPU8 943,861 cpu/cpu=8/
> > > CPU0 1,412,071 cycles
> > > CPU4 20,362,900 cycles
> > > CPU5 10,172,725 cycles
> > > CPU8 2,406,081 cycles
> > >
> > > 0.102925309 seconds time elapsed
> > > ```
> > >
> > > Note, the event name of inst_retired.any is missing, reported as
> > > cpu/cpu=8/, as there are unmerged uniquify fixes:
> > > https://lore.kernel.org/lkml/20240510053705.2462258-3-irogers@google.com/
> > >
> > > Signed-off-by: Ian Rogers <irogers@google.com>
> > > ---
> > > tools/perf/Documentation/perf-list.txt | 9 ++++
> > > tools/perf/util/evsel_config.h | 1 +
> > > tools/perf/util/parse-events.c | 71 ++++++++++++++++++++++----
> > > tools/perf/util/parse-events.h | 3 +-
> > > tools/perf/util/parse-events.l | 1 +
> > > tools/perf/util/pmu.c | 1 +
> > > 6 files changed, 74 insertions(+), 12 deletions(-)
> > >
> > > diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
> > > index dea005410ec0..e0cd9bb8283e 100644
> > > --- a/tools/perf/Documentation/perf-list.txt
> > > +++ b/tools/perf/Documentation/perf-list.txt
> > > @@ -274,6 +274,15 @@ Sums up the event counts for all hardware threads in a core, e.g.:
> > >
> > > perf stat -e cpu/event=0,umask=0x3,percore=1/
> > >
> > > +cpu:
> > > +
> > > +Specifies the CPU to open the event upon. The value may be repeated to
> > > +specify opening the event on multiple CPUs:
> > > +
> > > +
> > > + perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
> > > + perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
> > > +
> > >
> > > EVENT GROUPS
> > > ------------
> > > diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h
> > > index aee6f808b512..9630c4a24721 100644
> > > --- a/tools/perf/util/evsel_config.h
> > > +++ b/tools/perf/util/evsel_config.h
> > > @@ -47,6 +47,7 @@ struct evsel_config_term {
> > > u32 aux_sample_size;
> > > u64 cfg_chg;
> > > char *str;
> > > + int cpu;
> > > } val;
> > > bool weak;
> > > };
> > > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> > > index 017d31d51ea4..63c31cfdd79b 100644
> > > --- a/tools/perf/util/parse-events.c
> > > +++ b/tools/perf/util/parse-events.c
> > > @@ -7,6 +7,7 @@
> > > #include <errno.h>
> > > #include <sys/ioctl.h>
> > > #include <sys/param.h>
> > > +#include "cpumap.h"
> > > #include "term.h"
> > > #include "env.h"
> > > #include "evlist.h"
> > > @@ -178,6 +179,26 @@ static char *get_config_name(const struct parse_events_terms *head_terms)
> > > return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
> > > }
> > >
> > > +static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head_terms)
> > > +{
> > > + struct parse_events_term *term;
> > > + struct perf_cpu_map *cpus = NULL;
> > > +
> > > + if (!head_terms)
> > > + return NULL;
> > > +
> > > + list_for_each_entry(term, &head_terms->terms, list) {
> > > + if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
> > > + struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
> > > +
> > > + cpus = perf_cpu_map__merge(cpus, cpu);
> > > + perf_cpu_map__put(cpu);
> > > + }
> > > + }
> > > +
> > > + return cpus;
> > > +}
> > > +
> > > /**
> > > * fix_raw - For each raw term see if there is an event (aka alias) in pmu that
> > > * matches the raw's string value. If the string value matches an
> > > @@ -469,11 +490,12 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > > bool found_supported = false;
> > > const char *config_name = get_config_name(parsed_terms);
> > > const char *metric_id = get_config_metric_id(parsed_terms);
> > > + struct perf_cpu_map *cpus = get_config_cpu(parsed_terms);
> > > + int ret = 0;
> > >
> > > while ((pmu = perf_pmus__scan(pmu)) != NULL) {
> > > LIST_HEAD(config_terms);
> > > struct perf_event_attr attr;
> > > - int ret;
> > >
> > > if (parse_events__filter_pmu(parse_state, pmu))
> > > continue;
> > > @@ -487,7 +509,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > > parsed_terms,
> > > perf_pmu__auto_merge_stats(pmu));
> > > if (ret)
> > > - return ret;
> > > + goto out_err;
> > > continue;
> > > }
> > >
> > > @@ -507,20 +529,27 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > >
> > > if (parsed_terms) {
> > > if (config_attr(&attr, parsed_terms, parse_state->error,
> > > - config_term_common))
> > > - return -EINVAL;
> > > -
> > > - if (get_config_terms(parsed_terms, &config_terms))
> > > - return -ENOMEM;
> > > + config_term_common)) {
> > > + ret = -EINVAL;
> > > + goto out_err;
> > > + }
> > > + if (get_config_terms(parsed_terms, &config_terms)) {
> > > + ret = -ENOMEM;
> > > + goto out_err;
> > > + }
> > > }
> > >
> > > if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
> > > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > > - /*cpu_list=*/NULL) == NULL)
> > > - return -ENOMEM;
> > > + cpus) == NULL)
> > > + ret = -ENOMEM;
> > >
> > > free_config_terms(&config_terms);
> > > + if (ret)
> > > + goto out_err;
> > > }
> > > +out_err:
> > > + perf_cpu_map__put(cpus);
> > > return found_supported ? 0 : -EINVAL;
> > > }
> > >
> > > @@ -835,6 +864,7 @@ static const char *config_term_name(enum parse_events__term_type term_type)
> > > [PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
> > > [PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache",
> > > [PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware",
> > > + [PARSE_EVENTS__TERM_TYPE_CPU] = "cpu",
> > > };
> > > if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR)
> > > return "unknown term";
> > > @@ -864,6 +894,7 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
> > > case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
> > > case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
> > > case PARSE_EVENTS__TERM_TYPE_PERCORE:
> > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > return true;
> > > case PARSE_EVENTS__TERM_TYPE_USER:
> > > case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
> > > @@ -1007,6 +1038,15 @@ do { \
> > > return -EINVAL;
> > > }
> > > break;
> > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > + CHECK_TYPE_VAL(NUM);
> > > + if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
> > > + parse_events_error__handle(err, term->err_val,
> > > + strdup("too big"),
> > > + NULL);
> > > + return -EINVAL;
> > > + }
> > > + break;
> > > case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
> > > case PARSE_EVENTS__TERM_TYPE_USER:
> > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > @@ -1133,6 +1173,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
> > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > default:
> > > if (err) {
> > > parse_events_error__handle(err, term->err_term,
> > > @@ -1264,6 +1305,7 @@ do { \
> > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > default:
> > > break;
> > > }
> > > @@ -1317,6 +1359,7 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
> > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > default:
> > > break;
> > > }
> > > @@ -1371,6 +1414,7 @@ static 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;
> > > + struct perf_cpu_map *cpus;
> > > int ret;
> > >
> > > memset(&attr, 0, sizeof(attr));
> > > @@ -1392,9 +1436,11 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state,
> > >
> > > name = get_config_name(head_config);
> > > metric_id = get_config_metric_id(head_config);
> > > + cpus = get_config_cpu(head_config);
> > > ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name,
> > > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > > - /*cpu_list=*/NULL) ? 0 : -ENOMEM;
> > > + cpus) ? 0 : -ENOMEM;
> > > + perf_cpu_map__put(cpus);
> > > free_config_terms(&config_terms);
> > > return ret;
> > > }
> > > @@ -1461,6 +1507,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > > LIST_HEAD(config_terms);
> > > struct parse_events_terms parsed_terms;
> > > bool alias_rewrote_terms = false;
> > > + struct perf_cpu_map *term_cpu = NULL;
> > >
> > > if (verbose > 1) {
> > > struct strbuf sb;
> > > @@ -1552,10 +1599,12 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > > return -EINVAL;
> > > }
> > >
> > > + term_cpu = get_config_cpu(&parsed_terms);
> > > evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
> > > get_config_name(&parsed_terms),
> > > get_config_metric_id(&parsed_terms), pmu,
> > > - &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
> > > + &config_terms, auto_merge_stats, term_cpu);
> > > + perf_cpu_map__put(term_cpu);
> > > if (!evsel) {
> > > parse_events_terms__exit(&parsed_terms);
> > > return -ENOMEM;
> > > diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
> > > index 10cc9c433116..2532c81d4f9a 100644
> > > --- a/tools/perf/util/parse-events.h
> > > +++ b/tools/perf/util/parse-events.h
> > > @@ -79,7 +79,8 @@ enum parse_events__term_type {
> > > PARSE_EVENTS__TERM_TYPE_RAW,
> > > PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
> > > PARSE_EVENTS__TERM_TYPE_HARDWARE,
> > > -#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
> > > + PARSE_EVENTS__TERM_TYPE_CPU,
> > > +#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_CPU + 1)
> > > };
> > >
> > > struct parse_events_term {
> > > diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> > > index 5a0bcd7f166a..635d216632d7 100644
> > > --- a/tools/perf/util/parse-events.l
> > > +++ b/tools/perf/util/parse-events.l
> > > @@ -331,6 +331,7 @@ 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); }
> > > +cpu { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CPU); }
> > > cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> > > stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> > > stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> > > diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> > > index 61bdda01a05a..4f68026a97bb 100644
> > > --- a/tools/perf/util/pmu.c
> > > +++ b/tools/perf/util/pmu.c
> > > @@ -1738,6 +1738,7 @@ int perf_pmu__for_each_format(struct perf_pmu *pmu, void *state, pmu_format_call
> > > "percore",
> > > "aux-output",
> > > "aux-sample-size=number",
> > > + "cpu=number",
> > > };
> > > struct perf_pmu_format *format;
> > > int ret;
> > > --
> > > 2.46.0.662.g92d0881bb0-goog
> > >
On Tue, Oct 1, 2024 at 3:53 PM Namhyung Kim <namhyung@kernel.org> wrote:
>
> On Mon, Sep 30, 2024 at 07:03:35PM -0700, Ian Rogers wrote:
> > On Mon, Sep 30, 2024 at 2:42 PM Namhyung Kim <namhyung@kernel.org> wrote:
> > >
> > > On Thu, Sep 19, 2024 at 12:01:33AM +0200, Ian Rogers wrote:
> > > > The -C option allows the CPUs for a list of events to be specified but
> > > > its not possible to set the CPU for a single event. Add a term to
> > > > allow this. The term isn't a general CPU list due to ',' already being
> > > > a special character in event parsing instead multiple cpu= terms may
> > > > be provided and they will be merged/unioned together.
> > > >
> > > > An example of mixing different types of events counted on different CPUs:
> > > > ```
> > > > $ perf stat -A -C 0,4-5,8 -e "instructions/cpu=0/,l1d-misses/cpu=4,cpu=5/,inst_retired.any/cpu=8/,cycles" -a sleep 0.1
> > > >
> > > > Performance counter stats for 'system wide':
> > > >
> > > > CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
> > > > CPU4 <not counted> instructions/cpu=0/
> > > > CPU5 <not counted> instructions/cpu=0/
> > > > CPU8 <not counted> instructions/cpu=0/
> > >
> > > I think this should have an entry for CPU0 only. IOW the cpu parameter
> > > in the event specification has a higher priority than -C option.
> >
> > I think you are agreeing with what the output shows and what is
> > written in the commit message. See below for cleaning up the stat
> > output.
>
> I agree it'd be helpful if we can specify different CPUs for each event.
> But I want the output omitting the not counted events on other CPUs like
>
> CPU0 368,647 instructions/cpu=0/ # 0.26 insn per cycle
> CPU4 203,377 l1d-misses [cpu]
> CPU5 138,231 l1d-misses [cpu]
> CPU8 943,861 cpu/cpu=8/
> CPU0 1,412,071 cycles
> CPU4 20,362,900 cycles
> CPU5 10,172,725 cycles
> CPU8 2,406,081 cycles
Sure that needs a display update and isn't part of supporting a modifier *sigh*
Ian
> Thanks,
> Namhyung
>
> > >
> > >
> > > > CPU0 <not counted> l1d-misses [cpu]
> > > > CPU4 203,377 l1d-misses [cpu]
> > > > CPU5 138,231 l1d-misses [cpu]
> > > > CPU8 <not counted> l1d-misses [cpu]
> > > > CPU0 <not counted> cpu/cpu=8/
> > > > CPU4 <not counted> cpu/cpu=8/
> > > > CPU5 <not counted> cpu/cpu=8/
> > > > CPU8 943,861 cpu/cpu=8/
> > > > CPU0 1,412,071 cycles
> > > > CPU4 20,362,900 cycles
> > > > CPU5 10,172,725 cycles
> > > > CPU8 2,406,081 cycles
> > > >
> > > > 0.102925309 seconds time elapsed
> > > > ```
> > > >
> > > > Note, the event name of inst_retired.any is missing, reported as
> > > > cpu/cpu=8/, as there are unmerged uniquify fixes:
> > > > https://lore.kernel.org/lkml/20240510053705.2462258-3-irogers@google.com/
> > > >
> > > > Signed-off-by: Ian Rogers <irogers@google.com>
> > > > ---
> > > > tools/perf/Documentation/perf-list.txt | 9 ++++
> > > > tools/perf/util/evsel_config.h | 1 +
> > > > tools/perf/util/parse-events.c | 71 ++++++++++++++++++++++----
> > > > tools/perf/util/parse-events.h | 3 +-
> > > > tools/perf/util/parse-events.l | 1 +
> > > > tools/perf/util/pmu.c | 1 +
> > > > 6 files changed, 74 insertions(+), 12 deletions(-)
> > > >
> > > > diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
> > > > index dea005410ec0..e0cd9bb8283e 100644
> > > > --- a/tools/perf/Documentation/perf-list.txt
> > > > +++ b/tools/perf/Documentation/perf-list.txt
> > > > @@ -274,6 +274,15 @@ Sums up the event counts for all hardware threads in a core, e.g.:
> > > >
> > > > perf stat -e cpu/event=0,umask=0x3,percore=1/
> > > >
> > > > +cpu:
> > > > +
> > > > +Specifies the CPU to open the event upon. The value may be repeated to
> > > > +specify opening the event on multiple CPUs:
> > > > +
> > > > +
> > > > + perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
> > > > + perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
> > > > +
> > > >
> > > > EVENT GROUPS
> > > > ------------
> > > > diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h
> > > > index aee6f808b512..9630c4a24721 100644
> > > > --- a/tools/perf/util/evsel_config.h
> > > > +++ b/tools/perf/util/evsel_config.h
> > > > @@ -47,6 +47,7 @@ struct evsel_config_term {
> > > > u32 aux_sample_size;
> > > > u64 cfg_chg;
> > > > char *str;
> > > > + int cpu;
> > > > } val;
> > > > bool weak;
> > > > };
> > > > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> > > > index 017d31d51ea4..63c31cfdd79b 100644
> > > > --- a/tools/perf/util/parse-events.c
> > > > +++ b/tools/perf/util/parse-events.c
> > > > @@ -7,6 +7,7 @@
> > > > #include <errno.h>
> > > > #include <sys/ioctl.h>
> > > > #include <sys/param.h>
> > > > +#include "cpumap.h"
> > > > #include "term.h"
> > > > #include "env.h"
> > > > #include "evlist.h"
> > > > @@ -178,6 +179,26 @@ static char *get_config_name(const struct parse_events_terms *head_terms)
> > > > return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
> > > > }
> > > >
> > > > +static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head_terms)
> > > > +{
> > > > + struct parse_events_term *term;
> > > > + struct perf_cpu_map *cpus = NULL;
> > > > +
> > > > + if (!head_terms)
> > > > + return NULL;
> > > > +
> > > > + list_for_each_entry(term, &head_terms->terms, list) {
> > > > + if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
> > > > + struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
> > > > +
> > > > + cpus = perf_cpu_map__merge(cpus, cpu);
> > > > + perf_cpu_map__put(cpu);
> > > > + }
> > > > + }
> > > > +
> > > > + return cpus;
> > > > +}
> > > > +
> > > > /**
> > > > * fix_raw - For each raw term see if there is an event (aka alias) in pmu that
> > > > * matches the raw's string value. If the string value matches an
> > > > @@ -469,11 +490,12 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > > > bool found_supported = false;
> > > > const char *config_name = get_config_name(parsed_terms);
> > > > const char *metric_id = get_config_metric_id(parsed_terms);
> > > > + struct perf_cpu_map *cpus = get_config_cpu(parsed_terms);
> > > > + int ret = 0;
> > > >
> > > > while ((pmu = perf_pmus__scan(pmu)) != NULL) {
> > > > LIST_HEAD(config_terms);
> > > > struct perf_event_attr attr;
> > > > - int ret;
> > > >
> > > > if (parse_events__filter_pmu(parse_state, pmu))
> > > > continue;
> > > > @@ -487,7 +509,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > > > parsed_terms,
> > > > perf_pmu__auto_merge_stats(pmu));
> > > > if (ret)
> > > > - return ret;
> > > > + goto out_err;
> > > > continue;
> > > > }
> > > >
> > > > @@ -507,20 +529,27 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
> > > >
> > > > if (parsed_terms) {
> > > > if (config_attr(&attr, parsed_terms, parse_state->error,
> > > > - config_term_common))
> > > > - return -EINVAL;
> > > > -
> > > > - if (get_config_terms(parsed_terms, &config_terms))
> > > > - return -ENOMEM;
> > > > + config_term_common)) {
> > > > + ret = -EINVAL;
> > > > + goto out_err;
> > > > + }
> > > > + if (get_config_terms(parsed_terms, &config_terms)) {
> > > > + ret = -ENOMEM;
> > > > + goto out_err;
> > > > + }
> > > > }
> > > >
> > > > if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
> > > > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > > > - /*cpu_list=*/NULL) == NULL)
> > > > - return -ENOMEM;
> > > > + cpus) == NULL)
> > > > + ret = -ENOMEM;
> > > >
> > > > free_config_terms(&config_terms);
> > > > + if (ret)
> > > > + goto out_err;
> > > > }
> > > > +out_err:
> > > > + perf_cpu_map__put(cpus);
> > > > return found_supported ? 0 : -EINVAL;
> > > > }
> > > >
> > > > @@ -835,6 +864,7 @@ static const char *config_term_name(enum parse_events__term_type term_type)
> > > > [PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
> > > > [PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache",
> > > > [PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware",
> > > > + [PARSE_EVENTS__TERM_TYPE_CPU] = "cpu",
> > > > };
> > > > if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR)
> > > > return "unknown term";
> > > > @@ -864,6 +894,7 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
> > > > case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
> > > > case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
> > > > case PARSE_EVENTS__TERM_TYPE_PERCORE:
> > > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > > return true;
> > > > case PARSE_EVENTS__TERM_TYPE_USER:
> > > > case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
> > > > @@ -1007,6 +1038,15 @@ do { \
> > > > return -EINVAL;
> > > > }
> > > > break;
> > > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > > + CHECK_TYPE_VAL(NUM);
> > > > + if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
> > > > + parse_events_error__handle(err, term->err_val,
> > > > + strdup("too big"),
> > > > + NULL);
> > > > + return -EINVAL;
> > > > + }
> > > > + break;
> > > > case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
> > > > case PARSE_EVENTS__TERM_TYPE_USER:
> > > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > > @@ -1133,6 +1173,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
> > > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > > default:
> > > > if (err) {
> > > > parse_events_error__handle(err, term->err_term,
> > > > @@ -1264,6 +1305,7 @@ do { \
> > > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > > default:
> > > > break;
> > > > }
> > > > @@ -1317,6 +1359,7 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
> > > > case PARSE_EVENTS__TERM_TYPE_RAW:
> > > > case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
> > > > case PARSE_EVENTS__TERM_TYPE_HARDWARE:
> > > > + case PARSE_EVENTS__TERM_TYPE_CPU:
> > > > default:
> > > > break;
> > > > }
> > > > @@ -1371,6 +1414,7 @@ static 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;
> > > > + struct perf_cpu_map *cpus;
> > > > int ret;
> > > >
> > > > memset(&attr, 0, sizeof(attr));
> > > > @@ -1392,9 +1436,11 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state,
> > > >
> > > > name = get_config_name(head_config);
> > > > metric_id = get_config_metric_id(head_config);
> > > > + cpus = get_config_cpu(head_config);
> > > > ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name,
> > > > metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
> > > > - /*cpu_list=*/NULL) ? 0 : -ENOMEM;
> > > > + cpus) ? 0 : -ENOMEM;
> > > > + perf_cpu_map__put(cpus);
> > > > free_config_terms(&config_terms);
> > > > return ret;
> > > > }
> > > > @@ -1461,6 +1507,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > > > LIST_HEAD(config_terms);
> > > > struct parse_events_terms parsed_terms;
> > > > bool alias_rewrote_terms = false;
> > > > + struct perf_cpu_map *term_cpu = NULL;
> > > >
> > > > if (verbose > 1) {
> > > > struct strbuf sb;
> > > > @@ -1552,10 +1599,12 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
> > > > return -EINVAL;
> > > > }
> > > >
> > > > + term_cpu = get_config_cpu(&parsed_terms);
> > > > evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
> > > > get_config_name(&parsed_terms),
> > > > get_config_metric_id(&parsed_terms), pmu,
> > > > - &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
> > > > + &config_terms, auto_merge_stats, term_cpu);
> > > > + perf_cpu_map__put(term_cpu);
> > > > if (!evsel) {
> > > > parse_events_terms__exit(&parsed_terms);
> > > > return -ENOMEM;
> > > > diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
> > > > index 10cc9c433116..2532c81d4f9a 100644
> > > > --- a/tools/perf/util/parse-events.h
> > > > +++ b/tools/perf/util/parse-events.h
> > > > @@ -79,7 +79,8 @@ enum parse_events__term_type {
> > > > PARSE_EVENTS__TERM_TYPE_RAW,
> > > > PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
> > > > PARSE_EVENTS__TERM_TYPE_HARDWARE,
> > > > -#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
> > > > + PARSE_EVENTS__TERM_TYPE_CPU,
> > > > +#define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_CPU + 1)
> > > > };
> > > >
> > > > struct parse_events_term {
> > > > diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> > > > index 5a0bcd7f166a..635d216632d7 100644
> > > > --- a/tools/perf/util/parse-events.l
> > > > +++ b/tools/perf/util/parse-events.l
> > > > @@ -331,6 +331,7 @@ 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); }
> > > > +cpu { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CPU); }
> > > > cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> > > > stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> > > > stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> > > > diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> > > > index 61bdda01a05a..4f68026a97bb 100644
> > > > --- a/tools/perf/util/pmu.c
> > > > +++ b/tools/perf/util/pmu.c
> > > > @@ -1738,6 +1738,7 @@ int perf_pmu__for_each_format(struct perf_pmu *pmu, void *state, pmu_format_call
> > > > "percore",
> > > > "aux-output",
> > > > "aux-sample-size=number",
> > > > + "cpu=number",
> > > > };
> > > > struct perf_pmu_format *format;
> > > > int ret;
> > > > --
> > > > 2.46.0.662.g92d0881bb0-goog
> > > >
© 2016 - 2026 Red Hat, Inc.