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perf list: Print all available tool events

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Introduce names for the new tool events 'user_time' and 'system_time'.

  $ perf list
  ...
  duration_time                                      [Tool event]
  user_time                                          [Tool event]
  system_time                                        [Tool event]
  ...

Committer testing:

Before:

  $ perf list | grep Tool
  duration_time                                      [Tool event]
  $

After:

  $ perf list | grep Tool
    duration_time                                    [Tool event]
    user_time                                        [Tool event]
    system_time                                      [Tool event]
  $

Signed-off-by: Florian Fischer <florian.fischer@muhq.space>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: http://lore.kernel.org/lkml/20220420174244.1741958-2-florian.fischer@muhq.space
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Florian Fischer 2022-04-20 19:42:44 +02:00 committed by Arnaldo Carvalho de Melo
parent b03b89b350
commit 75eafc970b
3 changed files with 48 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
tools/perf/util/evsel.c
View file

@ -597,6 +597,17 @@ static int evsel__sw_name(struct evsel *evsel, char *bf, size_t size)
return r + evsel__add_modifiers(evsel, bf + r, size - r);
}
const char *evsel__tool_names[PERF_TOOL_MAX] = {
"duration_time",
"user_time",
"system_time",
};
static int evsel__tool_name(enum perf_tool_event ev, char *bf, size_t size)
{
return scnprintf(bf, size, "%s", evsel__tool_names[ev]);
}
static int __evsel__bp_name(char *bf, size_t size, u64 addr, u64 type)
{
int r;
@ -723,12 +734,6 @@ static int evsel__raw_name(struct evsel *evsel, char *bf, size_t size)
return ret + evsel__add_modifiers(evsel, bf + ret, size - ret);
}
static int evsel__tool_name(char *bf, size_t size)
{
int ret = scnprintf(bf, size, "duration_time");
return ret;
}
const char *evsel__name(struct evsel *evsel)
{
char bf[128];
@ -754,7 +759,7 @@ const char *evsel__name(struct evsel *evsel)
case PERF_TYPE_SOFTWARE:
if (evsel->tool_event)
evsel__tool_name(bf, sizeof(bf));
evsel__tool_name(evsel->tool_event, bf, sizeof(bf));
else
evsel__sw_name(evsel, bf, sizeof(bf));
break;

1
tools/perf/util/evsel.h
View file

@ -262,6 +262,7 @@ extern const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALI
extern const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
extern const char *evsel__hw_names[PERF_COUNT_HW_MAX];
extern const char *evsel__sw_names[PERF_COUNT_SW_MAX];
extern const char *evsel__tool_names[PERF_TOOL_MAX];
extern char *evsel__bpf_counter_events;
bool evsel__match_bpf_counter_events(const char *name);

42
tools/perf/util/parse-events.c
View file

@ -154,6 +154,21 @@ struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
},
};
struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = {
[PERF_TOOL_DURATION_TIME] = {
.symbol = "duration_time",
.alias = "",
},
[PERF_TOOL_USER_TIME] = {
.symbol = "user_time",
.alias = "",
},
[PERF_TOOL_SYSTEM_TIME] = {
.symbol = "system_time",
.alias = "",
},
};
#define __PERF_EVENT_FIELD(config, name) \
((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
@ -3057,21 +3072,34 @@ int print_hwcache_events(const char *event_glob, bool name_only)
return evt_num;
}
static void print_tool_event(const char *name, const char *event_glob,
static void print_tool_event(const struct event_symbol *syms, const char *event_glob,
bool name_only)
{
if (event_glob && !strglobmatch(name, event_glob))
if (syms->symbol == NULL)
return;
if (name_only)
printf("%s ", name);
else
printf(" %-50s [%s]\n", name, "Tool event");
if (event_glob && !(strglobmatch(syms->symbol, event_glob) ||
(syms->alias && strglobmatch(syms->alias, event_glob))))
return;
if (name_only)
printf("%s ", syms->symbol);
else {
char name[MAX_NAME_LEN];
if (syms->alias && strlen(syms->alias))
snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
else
strlcpy(name, syms->symbol, MAX_NAME_LEN);
printf(" %-50s [%s]\n", name, "Tool event");
}
}
void print_tool_events(const char *event_glob, bool name_only)
{
print_tool_event("duration_time", event_glob, name_only);
// Start at 1 because the first enum entry symbols no tool event
for (int i = 1; i < PERF_TOOL_MAX; ++i) {
print_tool_event(event_symbols_tool + i, event_glob, name_only);
}
if (pager_in_use())
printf("\n");
}