perf annotate: Get rid of annotation__scnprintf_samples_period()

We have more current function tto get the title for annotation,
which is hists__scnprintf_title. They both have same output as
far as the annotation's header line goes.

They differ in counting of the nr_samples, hists__scnprintf_title
provides more accurate number based on the setup of the
symbol_conf.filter_relative variable.

Plus it also displays any uid/thread/dso/socket filters/zooms
if there are set any, which annotation__scnprintf_samples_period
does not.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20180804130521.11408-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 42 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 956c9b19d81c..0d40cee13f6b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -2389,7 +2389,7 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map,
 {
         struct dso *dso = map->dso;
         struct rb_root source_line = RB_ROOT;
-        struct annotation *notes = symbol__annotation(sym);
+        struct hists *hists = evsel__hists(evsel);
         char buf[1024];
 
         if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0)
@@ -2401,7 +2401,7 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map,
                 print_summary(&source_line, dso->long_name);
         }
 
-        annotation__scnprintf_samples_period(notes, buf, sizeof(buf), evsel);
+        hists__scnprintf_title(hists, buf, sizeof(buf));
         fprintf(stdout, "%s\n%s() %s\n", buf, sym->name, dso->long_name);
         symbol__annotate_fprintf2(sym, stdout);
 
@@ -2689,46 +2689,6 @@ out_free_offsets:
         return -1;
 }
 
-int __annotation__scnprintf_samples_period(struct annotation *notes,
-                                           char *bf, size_t size,
-                                           struct perf_evsel *evsel,
-                                           bool show_freq)
-{
-        const char *ev_name = perf_evsel__name(evsel);
-        char buf[1024], ref[30] = " show reference callgraph, ";
-        char sample_freq_str[64] = "";
-        unsigned long nr_samples = 0;
-        int nr_members = 1;
-        bool enable_ref = false;
-        u64 nr_events = 0;
-        char unit;
-        int i;
-
-        if (perf_evsel__is_group_event(evsel)) {
-                perf_evsel__group_desc(evsel, buf, sizeof(buf));
-                ev_name = buf;
-                nr_members = evsel->nr_members;
-        }
-
-        for (i = 0; i < nr_members; i++) {
-                struct sym_hist *ah = annotation__histogram(notes, evsel->idx + i);
-
-                nr_samples += ah->nr_samples;
-                nr_events  += ah->period;
-        }
-
-        if (symbol_conf.show_ref_callgraph && strstr(ev_name, "call-graph=no"))
-                enable_ref = true;
-
-        if (show_freq)
-                scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq);
-
-        nr_samples = convert_unit(nr_samples, &unit);
-        return scnprintf(bf, size, "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
-                         nr_samples, unit, evsel->nr_members > 1 ? "s" : "",
-                         ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
-}
-
 #define ANNOTATION__CFG(n) \
         { .name = #n, .value = &annotation__default_options.n, }