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perf evlist: Add evlist__{en/dis}able_non_dummy()

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Dummy events are used to provide sideband information like MMAP events that
are always needed even when main events are disabled. Add functions that
take that into account.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220824072814.16422-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2022-08-24 10:28:13 +03:00 committed by Arnaldo Carvalho de Melo
parent feff0b61ff
commit 329725d5f6
2 changed files with 26 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
tools/perf/util/evlist.c
View File

@ -480,7 +480,7 @@ static int evlist__is_enabled(struct evlist *evlist)
return false;
}
static void __evlist__disable(struct evlist *evlist, char *evsel_name)
static void __evlist__disable(struct evlist *evlist, char *evsel_name, bool excl_dummy)
{
struct evsel *pos;
struct evlist_cpu_iterator evlist_cpu_itr;
@ -502,6 +502,8 @@ static void __evlist__disable(struct evlist *evlist, char *evsel_name)
continue;
if (pos->disabled || !evsel__is_group_leader(pos) || !pos->core.fd)
continue;
if (excl_dummy && evsel__is_dummy_event(pos))
continue;
if (pos->immediate)
has_imm = true;
if (pos->immediate != imm)
@ -518,6 +520,8 @@ static void __evlist__disable(struct evlist *evlist, char *evsel_name)
continue;
if (!evsel__is_group_leader(pos) || !pos->core.fd)
continue;
if (excl_dummy && evsel__is_dummy_event(pos))
continue;
pos->disabled = true;
}
@ -533,15 +537,20 @@ static void __evlist__disable(struct evlist *evlist, char *evsel_name)
void evlist__disable(struct evlist *evlist)
{
__evlist__disable(evlist, NULL);
__evlist__disable(evlist, NULL, false);
}
void evlist__disable_non_dummy(struct evlist *evlist)
{
__evlist__disable(evlist, NULL, true);
}
void evlist__disable_evsel(struct evlist *evlist, char *evsel_name)
{
__evlist__disable(evlist, evsel_name);
__evlist__disable(evlist, evsel_name, false);
}
static void __evlist__enable(struct evlist *evlist, char *evsel_name)
static void __evlist__enable(struct evlist *evlist, char *evsel_name, bool excl_dummy)
{
struct evsel *pos;
struct evlist_cpu_iterator evlist_cpu_itr;
@ -560,6 +569,8 @@ static void __evlist__enable(struct evlist *evlist, char *evsel_name)
continue;
if (!evsel__is_group_leader(pos) || !pos->core.fd)
continue;
if (excl_dummy && evsel__is_dummy_event(pos))
continue;
evsel__enable_cpu(pos, evlist_cpu_itr.cpu_map_idx);
}
affinity__cleanup(affinity);
@ -568,6 +579,8 @@ static void __evlist__enable(struct evlist *evlist, char *evsel_name)
continue;
if (!evsel__is_group_leader(pos) || !pos->core.fd)
continue;
if (excl_dummy && evsel__is_dummy_event(pos))
continue;
pos->disabled = false;
}
@ -581,12 +594,17 @@ static void __evlist__enable(struct evlist *evlist, char *evsel_name)
void evlist__enable(struct evlist *evlist)
{
__evlist__enable(evlist, NULL);
__evlist__enable(evlist, NULL, false);
}
void evlist__enable_non_dummy(struct evlist *evlist)
{
__evlist__enable(evlist, NULL, true);
}
void evlist__enable_evsel(struct evlist *evlist, char *evsel_name)
{
__evlist__enable(evlist, evsel_name);
__evlist__enable(evlist, evsel_name, false);
}
void evlist__toggle_enable(struct evlist *evlist)

2
tools/perf/util/evlist.h
View File

@ -205,6 +205,8 @@ void evlist__enable(struct evlist *evlist);
void evlist__toggle_enable(struct evlist *evlist);
void evlist__disable_evsel(struct evlist *evlist, char *evsel_name);
void evlist__enable_evsel(struct evlist *evlist, char *evsel_name);
void evlist__disable_non_dummy(struct evlist *evlist);
void evlist__enable_non_dummy(struct evlist *evlist);
void evlist__set_selected(struct evlist *evlist, struct evsel *evsel);