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perf metricgroup: Factor out metricgroup__add_metric_weak_group()

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Factor out metricgroup__add_metric_weak_group() which add metrics into a
weak group. The change can improve code readability. Because following
patch will introduce a function which add standalone metrics.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lore.kernel.org/lkml/1582581564-184429-3-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2020-02-24 13:59:21 -08:00 committed by Arnaldo Carvalho de Melo
parent 03fe02b113
commit f742634ab4
1 changed files with 33 additions and 24 deletions
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57
tools/perf/util/metricgroup.c
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@ -399,13 +399,42 @@ void metricgroup__print(bool metrics, bool metricgroups, char *filter,
strlist__delete(metriclist);
}
static void metricgroup__add_metric_weak_group(struct strbuf *events,
const char **ids,
int idnum)
{
bool no_group = false;
int i;
for (i = 0; i < idnum; i++) {
pr_debug("found event %s\n", ids[i]);
/*
* Duration time maps to a software event and can make
* groups not count. Always use it outside a
* group.
*/
if (!strcmp(ids[i], "duration_time")) {
if (i > 0)
strbuf_addf(events, "}:W,");
strbuf_addf(events, "duration_time");
no_group = true;
continue;
}
strbuf_addf(events, "%s%s",
i == 0 || no_group ? "{" : ",",
ids[i]);
no_group = false;
}
if (!no_group)
strbuf_addf(events, "}:W");
}
static int metricgroup__add_metric(const char *metric, struct strbuf *events,
struct list_head *group_list)
{
struct pmu_events_map *map = perf_pmu__find_map(NULL);
struct pmu_event *pe;
int ret = -EINVAL;
int i, j;
int i, ret = -EINVAL;
if (!map)
return 0;
@ -422,7 +451,6 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
const char **ids;
int idnum;
struct egroup *eg;
bool no_group = false;
pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
@ -431,27 +459,8 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
continue;
if (events->len > 0)
strbuf_addf(events, ",");
for (j = 0; j < idnum; j++) {
pr_debug("found event %s\n", ids[j]);
/*
* Duration time maps to a software event and can make
* groups not count. Always use it outside a
* group.
*/
if (!strcmp(ids[j], "duration_time")) {
if (j > 0)
strbuf_addf(events, "}:W,");
strbuf_addf(events, "duration_time");
no_group = true;
continue;
}
strbuf_addf(events, "%s%s",
j == 0 || no_group ? "{" : ",",
ids[j]);
no_group = false;
}
if (!no_group)
strbuf_addf(events, "}:W");
metricgroup__add_metric_weak_group(events, ids, idnum);
eg = malloc(sizeof(struct egroup));
if (!eg) {