tools/perf/ui/gtk/hists.c

   1 #include "../evlist.h"
   2 #include "../cache.h"
   3 #include "../evsel.h"
   4 #include "../sort.h"
   5 #include "../hist.h"
   6 #include "../helpline.h"
   7 #include "gtk.h"
   8
   9 #define MAX_COLUMNS                     32
  10
  11 static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
  12 {
  13         int ret = 0;
  14         int len;
  15         va_list args;
  16         double percent;
  17         const char *markup;
  18         char *buf = hpp->buf;
  19         size_t size = hpp->size;
  20
  21         va_start(args, fmt);
  22         len = va_arg(args, int);
  23         percent = va_arg(args, double);
  24         va_end(args);
  25
  26         markup = perf_gtk__get_percent_color(percent);
  27         if (markup)
  28                 ret += scnprintf(buf, size, markup);
  29
  30         ret += scnprintf(buf + ret, size - ret, fmt, len, percent);
  31
  32         if (markup)
  33                 ret += scnprintf(buf + ret, size - ret, "</span>");
  34
  35         return ret;
  36 }
  37
  38 #define __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
  39 static u64 he_get_##_field(struct hist_entry *he)                               \
  40 {                                                                               \
  41         return he->stat._field;                                                 \
  42 }                                                                               \
  43                                                                                 \
  44 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt,                \
  45                                        struct perf_hpp *hpp,                    \
  46                                        struct hist_entry *he)                   \
  47 {                                                                               \
  48         return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",              \
  49                         __percent_color_snprintf, true);                        \
  50 }
  51
  52 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)                               \
  53 static u64 he_get_acc_##_field(struct hist_entry *he)                           \
  54 {                                                                               \
  55         return he->stat_acc->_field;                                            \
  56 }                                                                               \
  57                                                                                 \
  58 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt,                \
  59                                        struct perf_hpp *hpp,                    \
  60                                        struct hist_entry *he)                   \
  61 {                                                                               \
  62         return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",      \
  63                             __percent_color_snprintf, true);                    \
  64 }
  65
  66 __HPP_COLOR_PERCENT_FN(overhead, period)
  67 __HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
  68 __HPP_COLOR_PERCENT_FN(overhead_us, period_us)
  69 __HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
  70 __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
  71 __HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)
  72
  73 #undef __HPP_COLOR_PERCENT_FN
  74
  75
  76 void perf_gtk__init_hpp(void)
  77 {
  78         perf_hpp__format[PERF_HPP__OVERHEAD].color =
  79                                 perf_gtk__hpp_color_overhead;
  80         perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
  81                                 perf_gtk__hpp_color_overhead_sys;
  82         perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
  83                                 perf_gtk__hpp_color_overhead_us;
  84         perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
  85                                 perf_gtk__hpp_color_overhead_guest_sys;
  86         perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
  87                                 perf_gtk__hpp_color_overhead_guest_us;
  88         perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
  89                                 perf_gtk__hpp_color_overhead_acc;
  90 }
  91
  92 static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store,
  93                                          GtkTreeIter *parent, int col, u64 total)
  94 {
  95         struct rb_node *nd;
  96         bool has_single_node = (rb_first(root) == rb_last(root));
  97
  98         for (nd = rb_first(root); nd; nd = rb_next(nd)) {
  99                 struct callchain_node *node;
 100                 struct callchain_list *chain;
 101                 GtkTreeIter iter, new_parent;
 102                 bool need_new_parent;
 103
 104                 node = rb_entry(nd, struct callchain_node, rb_node);
 105
 106                 new_parent = *parent;
 107                 need_new_parent = !has_single_node;
 108
 109                 callchain_node__make_parent_list(node);
 110
 111                 list_for_each_entry(chain, &node->parent_val, list) {
 112                         char buf[128];
 113
 114                         gtk_tree_store_append(store, &iter, &new_parent);
 115
 116                         callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 117                         gtk_tree_store_set(store, &iter, 0, buf, -1);
 118
 119                         callchain_list__sym_name(chain, buf, sizeof(buf), false);
 120                         gtk_tree_store_set(store, &iter, col, buf, -1);
 121
 122                         if (need_new_parent) {
 123                                 /*
 124                                  * Only show the top-most symbol in a callchain
 125                                  * if it's not the only callchain.
 126                                  */
 127                                 new_parent = iter;
 128                                 need_new_parent = false;
 129                         }
 130                 }
 131
 132                 list_for_each_entry(chain, &node->val, list) {
 133                         char buf[128];
 134
 135                         gtk_tree_store_append(store, &iter, &new_parent);
 136
 137                         callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 138                         gtk_tree_store_set(store, &iter, 0, buf, -1);
 139
 140                         callchain_list__sym_name(chain, buf, sizeof(buf), false);
 141                         gtk_tree_store_set(store, &iter, col, buf, -1);
 142
 143                         if (need_new_parent) {
 144                                 /*
 145                                  * Only show the top-most symbol in a callchain
 146                                  * if it's not the only callchain.
 147                                  */
 148                                 new_parent = iter;
 149                                 need_new_parent = false;
 150                         }
 151                 }
 152         }
 153 }
 154
 155 static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store,
 156                                            GtkTreeIter *parent, int col, u64 total)
 157 {
 158         struct rb_node *nd;
 159
 160         for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 161                 struct callchain_node *node;
 162                 struct callchain_list *chain;
 163                 GtkTreeIter iter;
 164                 char buf[64];
 165                 char *str, *str_alloc = NULL;
 166                 bool first = true;
 167
 168                 node = rb_entry(nd, struct callchain_node, rb_node);
 169
 170                 callchain_node__make_parent_list(node);
 171
 172                 list_for_each_entry(chain, &node->parent_val, list) {
 173                         char name[1024];
 174
 175                         callchain_list__sym_name(chain, name, sizeof(name), false);
 176
 177                         if (asprintf(&str, "%s%s%s",
 178                                      first ? "" : str_alloc,
 179                                      first ? "" : symbol_conf.field_sep ?: "; ",
 180                                      name) < 0)
 181                                 return;
 182
 183                         first = false;
 184                         free(str_alloc);
 185                         str_alloc = str;
 186                 }
 187
 188                 list_for_each_entry(chain, &node->val, list) {
 189                         char name[1024];
 190
 191                         callchain_list__sym_name(chain, name, sizeof(name), false);
 192
 193                         if (asprintf(&str, "%s%s%s",
 194                                      first ? "" : str_alloc,
 195                                      first ? "" : symbol_conf.field_sep ?: "; ",
 196                                      name) < 0)
 197                                 return;
 198
 199                         first = false;
 200                         free(str_alloc);
 201                         str_alloc = str;
 202                 }
 203
 204                 gtk_tree_store_append(store, &iter, parent);
 205
 206                 callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 207                 gtk_tree_store_set(store, &iter, 0, buf, -1);
 208
 209                 gtk_tree_store_set(store, &iter, col, str, -1);
 210
 211                 free(str_alloc);
 212         }
 213 }
 214
 215 static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
 216                                           GtkTreeIter *parent, int col, u64 total)
 217 {
 218         struct rb_node *nd;
 219         bool has_single_node = (rb_first(root) == rb_last(root));
 220
 221         for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 222                 struct callchain_node *node;
 223                 struct callchain_list *chain;
 224                 GtkTreeIter iter, new_parent;
 225                 bool need_new_parent;
 226                 u64 child_total;
 227
 228                 node = rb_entry(nd, struct callchain_node, rb_node);
 229
 230                 new_parent = *parent;
 231                 need_new_parent = !has_single_node && (node->val_nr > 1);
 232
 233                 list_for_each_entry(chain, &node->val, list) {
 234                         char buf[128];
 235
 236                         gtk_tree_store_append(store, &iter, &new_parent);
 237
 238                         callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 239                         gtk_tree_store_set(store, &iter, 0, buf, -1);
 240
 241                         callchain_list__sym_name(chain, buf, sizeof(buf), false);
 242                         gtk_tree_store_set(store, &iter, col, buf, -1);
 243
 244                         if (need_new_parent) {
 245                                 /*
 246                                  * Only show the top-most symbol in a callchain
 247                                  * if it's not the only callchain.
 248                                  */
 249                                 new_parent = iter;
 250                                 need_new_parent = false;
 251                         }
 252                 }
 253
 254                 if (callchain_param.mode == CHAIN_GRAPH_REL)
 255                         child_total = node->children_hit;
 256                 else
 257                         child_total = total;
 258
 259                 /* Now 'iter' contains info of the last callchain_list */
 260                 perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
 261                                               child_total);
 262         }
 263 }
 264
 265 static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 266                                     GtkTreeIter *parent, int col, u64 total)
 267 {
 268         if (callchain_param.mode == CHAIN_FLAT)
 269                 perf_gtk__add_callchain_flat(root, store, parent, col, total);
 270         else if (callchain_param.mode == CHAIN_FOLDED)
 271                 perf_gtk__add_callchain_folded(root, store, parent, col, total);
 272         else
 273                 perf_gtk__add_callchain_graph(root, store, parent, col, total);
 274 }
 275
 276 static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
 277                              GtkTreeViewColumn *col __maybe_unused,
 278                              gpointer user_data __maybe_unused)
 279 {
 280         bool expanded = gtk_tree_view_row_expanded(view, path);
 281
 282         if (expanded)
 283                 gtk_tree_view_collapse_row(view, path);
 284         else
 285                 gtk_tree_view_expand_row(view, path, FALSE);
 286 }
 287
 288 static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 289                                  float min_pcnt)
 290 {
 291         struct perf_hpp_fmt *fmt;
 292         GType col_types[MAX_COLUMNS];
 293         GtkCellRenderer *renderer;
 294         GtkTreeStore *store;
 295         struct rb_node *nd;
 296         GtkWidget *view;
 297         int col_idx;
 298         int sym_col = -1;
 299         int nr_cols;
 300         char s[512];
 301
 302         struct perf_hpp hpp = {
 303                 .buf            = s,
 304                 .size           = sizeof(s),
 305         };
 306
 307         nr_cols = 0;
 308
 309         hists__for_each_format(hists, fmt)
 310                 col_types[nr_cols++] = G_TYPE_STRING;
 311
 312         store = gtk_tree_store_newv(nr_cols, col_types);
 313
 314         view = gtk_tree_view_new();
 315
 316         renderer = gtk_cell_renderer_text_new();
 317
 318         col_idx = 0;
 319
 320         hists__for_each_format(hists, fmt) {
 321                 if (perf_hpp__should_skip(fmt, hists))
 322                         continue;
 323
 324                 /*
 325                  * XXX no way to determine where symcol column is..
 326                  *     Just use last column for now.
 327                  */
 328                 if (perf_hpp__is_sort_entry(fmt))
 329                         sym_col = col_idx;
 330
 331                 gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
 332                                                             -1, fmt->name,
 333                                                             renderer, "markup",
 334                                                             col_idx++, NULL);
 335         }
 336
 337         for (col_idx = 0; col_idx < nr_cols; col_idx++) {
 338                 GtkTreeViewColumn *column;
 339
 340                 column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
 341                 gtk_tree_view_column_set_resizable(column, TRUE);
 342
 343                 if (col_idx == sym_col) {
 344                         gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
 345                                                           column);
 346                 }
 347         }
 348
 349         gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));
 350
 351         g_object_unref(GTK_TREE_MODEL(store));
 352
 353         for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
 354                 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 355                 GtkTreeIter iter;
 356                 u64 total = hists__total_period(h->hists);
 357                 float percent;
 358
 359                 if (h->filtered)
 360                         continue;
 361
 362                 percent = hist_entry__get_percent_limit(h);
 363                 if (percent < min_pcnt)
 364                         continue;
 365
 366                 gtk_tree_store_append(store, &iter, NULL);
 367
 368                 col_idx = 0;
 369
 370                 hists__for_each_format(hists, fmt) {
 371                         if (perf_hpp__should_skip(fmt, h->hists))
 372                                 continue;
 373
 374                         if (fmt->color)
 375                                 fmt->color(fmt, &hpp, h);
 376                         else
 377                                 fmt->entry(fmt, &hpp, h);
 378
 379                         gtk_tree_store_set(store, &iter, col_idx++, s, -1);
 380                 }
 381
 382                 if (symbol_conf.use_callchain && sort__has_sym) {
 383                         if (callchain_param.mode == CHAIN_GRAPH_REL)
 384                                 total = symbol_conf.cumulate_callchain ?
 385                                         h->stat_acc->period : h->stat.period;
 386
 387                         perf_gtk__add_callchain(&h->sorted_chain, store, &iter,
 388                                                 sym_col, total);
 389                 }
 390         }
 391
 392         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);
 393
 394         g_signal_connect(view, "row-activated",
 395                          G_CALLBACK(on_row_activated), NULL);
 396         gtk_container_add(GTK_CONTAINER(window), view);
 397 }
 398
 399 static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 400                                             struct rb_root *root,
 401                                             GtkTreeStore *store,
 402                                             GtkTreeIter *parent,
 403                                             struct perf_hpp *hpp,
 404                                             float min_pcnt)
 405 {
 406         int col_idx = 0;
 407         struct rb_node *node;
 408         struct hist_entry *he;
 409         struct perf_hpp_fmt *fmt;
 410         struct perf_hpp_list_node *fmt_node;
 411         u64 total = hists__total_period(hists);
 412         int size;
 413
 414         for (node = rb_first(root); node; node = rb_next(node)) {
 415                 GtkTreeIter iter;
 416                 float percent;
 417                 char *bf;
 418
 419                 he = rb_entry(node, struct hist_entry, rb_node);
 420                 if (he->filtered)
 421                         continue;
 422
 423                 percent = hist_entry__get_percent_limit(he);
 424                 if (percent < min_pcnt)
 425                         continue;
 426
 427                 gtk_tree_store_append(store, &iter, parent);
 428
 429                 col_idx = 0;
 430
 431                 /* the first hpp_list_node is for overhead columns */
 432                 fmt_node = list_first_entry(&hists->hpp_formats,
 433                                             struct perf_hpp_list_node, list);
 434                 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
 435                         if (fmt->color)
 436                                 fmt->color(fmt, hpp, he);
 437                         else
 438                                 fmt->entry(fmt, hpp, he);
 439
 440                         gtk_tree_store_set(store, &iter, col_idx++, hpp->buf, -1);
 441                 }
 442
 443                 bf = hpp->buf;
 444                 size = hpp->size;
 445                 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
 446                         int ret;
 447
 448                         if (fmt->color)
 449                                 ret = fmt->color(fmt, hpp, he);
 450                         else
 451                                 ret = fmt->entry(fmt, hpp, he);
 452
 453                         snprintf(hpp->buf + ret, hpp->size - ret, "  ");
 454                         advance_hpp(hpp, ret + 2);
 455                 }
 456
 457                 gtk_tree_store_set(store, &iter, col_idx, ltrim(rtrim(bf)), -1);
 458
 459                 if (!he->leaf) {
 460                         hpp->buf = bf;
 461                         hpp->size = size;
 462
 463                         perf_gtk__add_hierarchy_entries(hists, &he->hroot_out,
 464                                                         store, &iter, hpp,
 465                                                         min_pcnt);
 466
 467                         if (!hist_entry__has_hierarchy_children(he, min_pcnt)) {
 468                                 char buf[32];
 469                                 GtkTreeIter child;
 470
 471                                 snprintf(buf, sizeof(buf), "no entry >= %.2f%%",
 472                                          min_pcnt);
 473
 474                                 gtk_tree_store_append(store, &child, &iter);
 475                                 gtk_tree_store_set(store, &child, col_idx, buf, -1);
 476                         }
 477                 }
 478
 479                 if (symbol_conf.use_callchain && he->leaf) {
 480                         if (callchain_param.mode == CHAIN_GRAPH_REL)
 481                                 total = symbol_conf.cumulate_callchain ?
 482                                         he->stat_acc->period : he->stat.period;
 483
 484                         perf_gtk__add_callchain(&he->sorted_chain, store, &iter,
 485                                                 col_idx, total);
 486                 }
 487         }
 488
 489 }
 490
 491 static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
 492                                      float min_pcnt)
 493 {
 494         struct perf_hpp_fmt *fmt;
 495         struct perf_hpp_list_node *fmt_node;
 496         GType col_types[MAX_COLUMNS];
 497         GtkCellRenderer *renderer;
 498         GtkTreeStore *store;
 499         GtkWidget *view;
 500         int col_idx;
 501         int nr_cols = 0;
 502         char s[512];
 503         char buf[512];
 504         bool first_node, first_col;
 505         struct perf_hpp hpp = {
 506                 .buf            = s,
 507                 .size           = sizeof(s),
 508         };
 509
 510         hists__for_each_format(hists, fmt) {
 511                 if (perf_hpp__is_sort_entry(fmt) ||
 512                     perf_hpp__is_dynamic_entry(fmt))
 513                         break;
 514
 515                 col_types[nr_cols++] = G_TYPE_STRING;
 516         }
 517         col_types[nr_cols++] = G_TYPE_STRING;
 518
 519         store = gtk_tree_store_newv(nr_cols, col_types);
 520         view = gtk_tree_view_new();
 521         renderer = gtk_cell_renderer_text_new();
 522
 523         col_idx = 0;
 524
 525         /* the first hpp_list_node is for overhead columns */
 526         fmt_node = list_first_entry(&hists->hpp_formats,
 527                                     struct perf_hpp_list_node, list);
 528         perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
 529                 gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
 530                                                             -1, fmt->name,
 531                                                             renderer, "markup",
 532                                                             col_idx++, NULL);
 533         }
 534
 535         /* construct merged column header since sort keys share single column */
 536         buf[0] = '\0';
 537         first_node = true;
 538         list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
 539                 if (!first_node)
 540                         strcat(buf, " / ");
 541                 first_node = false;
 542
 543                 first_col = true;
 544                 perf_hpp_list__for_each_format(&fmt_node->hpp ,fmt) {
 545                         if (perf_hpp__should_skip(fmt, hists))
 546                                 continue;
 547
 548                         if (!first_col)
 549                                 strcat(buf, "+");
 550                         first_col = false;
 551
 552                         fmt->header(fmt, &hpp, hists_to_evsel(hists));
 553                         strcat(buf, ltrim(rtrim(hpp.buf)));
 554                 }
 555         }
 556
 557         gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
 558                                                     -1, buf,
 559                                                     renderer, "markup",
 560                                                     col_idx++, NULL);
 561
 562         for (col_idx = 0; col_idx < nr_cols; col_idx++) {
 563                 GtkTreeViewColumn *column;
 564
 565                 column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
 566                 gtk_tree_view_column_set_resizable(column, TRUE);
 567
 568                 if (col_idx == 0) {
 569                         gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
 570                                                           column);
 571                 }
 572         }
 573
 574         gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));
 575         g_object_unref(GTK_TREE_MODEL(store));
 576
 577         perf_gtk__add_hierarchy_entries(hists, &hists->entries, store,
 578                                         NULL, &hpp, min_pcnt);
 579
 580         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);
 581
 582         g_signal_connect(view, "row-activated",
 583                          G_CALLBACK(on_row_activated), NULL);
 584         gtk_container_add(GTK_CONTAINER(window), view);
 585 }
 586
 587 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
 588                                   const char *help,
 589                                   struct hist_browser_timer *hbt __maybe_unused,
 590                                   float min_pcnt)
 591 {
 592         struct perf_evsel *pos;
 593         GtkWidget *vbox;
 594         GtkWidget *notebook;
 595         GtkWidget *info_bar;
 596         GtkWidget *statbar;
 597         GtkWidget *window;
 598
 599         signal(SIGSEGV, perf_gtk__signal);
 600         signal(SIGFPE,  perf_gtk__signal);
 601         signal(SIGINT,  perf_gtk__signal);
 602         signal(SIGQUIT, perf_gtk__signal);
 603         signal(SIGTERM, perf_gtk__signal);
 604
 605         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 606
 607         gtk_window_set_title(GTK_WINDOW(window), "perf report");
 608
 609         g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
 610
 611         pgctx = perf_gtk__activate_context(window);
 612         if (!pgctx)
 613                 return -1;
 614
 615         vbox = gtk_vbox_new(FALSE, 0);
 616
 617         notebook = gtk_notebook_new();
 618
 619         gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
 620
 621         info_bar = perf_gtk__setup_info_bar();
 622         if (info_bar)
 623                 gtk_box_pack_start(GTK_BOX(vbox), info_bar, FALSE, FALSE, 0);
 624
 625         statbar = perf_gtk__setup_statusbar();
 626         gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
 627
 628         gtk_container_add(GTK_CONTAINER(window), vbox);
 629
 630         evlist__for_each(evlist, pos) {
 631                 struct hists *hists = evsel__hists(pos);
 632                 const char *evname = perf_evsel__name(pos);
 633                 GtkWidget *scrolled_window;
 634                 GtkWidget *tab_label;
 635                 char buf[512];
 636                 size_t size = sizeof(buf);
 637
 638                 if (symbol_conf.event_group) {
 639                         if (!perf_evsel__is_group_leader(pos))
 640                                 continue;
 641
 642                         if (pos->nr_members > 1) {
 643                                 perf_evsel__group_desc(pos, buf, size);
 644                                 evname = buf;
 645                         }
 646                 }
 647
 648                 scrolled_window = gtk_scrolled_window_new(NULL, NULL);
 649
 650                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
 651                                                         GTK_POLICY_AUTOMATIC,
 652                                                         GTK_POLICY_AUTOMATIC);
 653
 654                 if (symbol_conf.report_hierarchy)
 655                         perf_gtk__show_hierarchy(scrolled_window, hists, min_pcnt);
 656                 else
 657                         perf_gtk__show_hists(scrolled_window, hists, min_pcnt);
 658
 659                 tab_label = gtk_label_new(evname);
 660
 661                 gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
 662         }
 663
 664         gtk_widget_show_all(window);
 665
 666         perf_gtk__resize_window(window);
 667
 668         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 669
 670         ui_helpline__push(help);
 671
 672         gtk_main();
 673
 674         perf_gtk__deactivate_context(&pgctx);
 675
 676         return 0;
 677 }