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Subject[PATCH RFC 10/10] perf,tools: show counter read result in tui browser title
Date
From: Kan Liang <kan.liang@intel.com>

There is no sampling for counter read event, so only show its value on
the browser title in tui mode.

Signed-off-by: Kan Liang <kan.liang@intel.com>
---
tools/perf/ui/browsers/hists.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index e1f28f4..1900363 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1270,12 +1270,22 @@ static int hists__browser_title(struct hists *hists,
size_t buflen = sizeof(buf);
char ref[30] = " show reference callgraph, ";
bool enable_ref = false;
+ int i, idx = 1;
+ struct perf_env *env = evsel->evlist->env;
+ u64 *counter_val = zalloc(evsel->nr_members * sizeof(u64));

if (symbol_conf.filter_relative) {
nr_samples = hists->stats.nr_non_filtered_samples;
nr_events = hists->stats.total_non_filtered_period;
}

+ if (hists->stats.counter_val != NULL) {
+ for (i = 0; i < env->nr_cpus_online; i++) {
+ if ((socket_id < 0) || (env->cpu[i].socket_id == socket_id))
+ counter_val[0] += hists->stats.counter_val[i];
+ }
+ }
+
if (perf_evsel__is_group_event(evsel)) {
struct perf_evsel *pos;

@@ -1292,6 +1302,13 @@ static int hists__browser_title(struct hists *hists,
nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
nr_events += pos_hists->stats.total_period;
}
+ if (pos_hists->stats.counter_val != NULL) {
+ for (i = 0; i < env->nr_cpus_online; i++) {
+ if ((socket_id < 0) || (env->cpu[i].socket_id == socket_id))
+ counter_val[idx] += pos_hists->stats.counter_val[i];
+ }
+ }
+ idx++;
}
}

@@ -1318,6 +1335,26 @@ static int hists__browser_title(struct hists *hists,
if (socket_id > -1)
printed += scnprintf(bf + printed, size - printed,
", Processor Socket: %d", socket_id);
+
+ if (hists->stats.counter_val != NULL)
+ printed += scnprintf(bf + printed, size - printed,
+ ", %s: %" PRIu64, evsel->name, counter_val[0]);
+
+ if (perf_evsel__is_group_event(evsel)) {
+ struct perf_evsel *pos;
+
+ idx = 1;
+ for_each_group_member(pos, evsel) {
+ const struct hists *pos_hists = evsel__hists(pos);
+
+ if (pos_hists->stats.counter_val != NULL)
+ printed += scnprintf(bf + printed, size - printed,
+ ", %s: %" PRIu64, pos->name, counter_val[idx]);
+ idx++;
+ }
+ }
+ free(counter_val);
+
if (!is_report_browser(hbt)) {
struct perf_top *top = hbt->arg;

--
1.8.3.1


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