perf gtk/browser: Add support for event group view

Show group members's overhead also when showing leader's if event
group is enabled.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranina@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-13-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 38be79d..c87a98c 100644 (file)
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -8,8 +8,7 @@
 
 #define MAX_COLUMNS                    32
 
-static int perf_gtk__percent_color_snprintf(char *buf, size_t size,
-                                           double percent)
+static int __percent_color_snprintf(char *buf, size_t size, double percent)
 {
        int ret = 0;
        const char *markup;
@@ -18,7 +17,7 @@ static int perf_gtk__percent_color_snprintf(char *buf, size_t size,
        if (markup)
                ret += scnprintf(buf, size, markup);
 
-       ret += scnprintf(buf + ret, size - ret, "%6.2f%%", percent);
+       ret += scnprintf(buf + ret, size - ret, " %6.2f%%", percent);
 
        if (markup)
                ret += scnprintf(buf + ret, size - ret, "</span>");
@@ -37,7 +36,55 @@ static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he,
        if (hists->stats.total_period)
                percent = 100.0 * get_field(he) / hists->stats.total_period;
 
-       ret = perf_gtk__percent_color_snprintf(hpp->buf, hpp->size, percent);
+       ret = __percent_color_snprintf(hpp->buf, hpp->size, percent);
+
+       if (symbol_conf.event_group) {
+               int prev_idx, idx_delta;
+               struct perf_evsel *evsel = hists_to_evsel(hists);
+               struct hist_entry *pair;
+               int nr_members = evsel->nr_members;
+
+               if (nr_members <= 1)
+                       return ret;
+
+               prev_idx = perf_evsel__group_idx(evsel);
+
+               list_for_each_entry(pair, &he->pairs.head, pairs.node) {
+                       u64 period = get_field(pair);
+                       u64 total = pair->hists->stats.total_period;
+
+                       evsel = hists_to_evsel(pair->hists);
+                       idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
+
+                       while (idx_delta--) {
+                               /*
+                                * zero-fill group members in the middle which
+                                * have no sample
+                                */
+                               ret += __percent_color_snprintf(hpp->buf + ret,
+                                                               hpp->size - ret,
+                                                               0.0);
+                       }
+
+                       percent = 100.0 * period / total;
+                       ret += __percent_color_snprintf(hpp->buf + ret,
+                                                       hpp->size - ret,
+                                                       percent);
+
+                       prev_idx = perf_evsel__group_idx(evsel);
+               }
+
+               idx_delta = nr_members - prev_idx - 1;
+
+               while (idx_delta--) {
+                       /*
+                        * zero-fill group members at last which have no sample
+                        */
+                       ret += __percent_color_snprintf(hpp->buf + ret,
+                                                       hpp->size - ret,
+                                                       0.0);
+               }
+       }
        return ret;
 }
 
@@ -96,6 +143,7 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
        struct perf_hpp hpp = {
                .buf            = s,
                .size           = sizeof(s),
+               .ptr            = hists_to_evsel(hists),
        };
 
        nr_cols = 0;