xref: /openbmc/linux/tools/perf/ui/gtk/hists.c (revision 0c874100)
1 // SPDX-License-Identifier: GPL-2.0
2 #include "../evlist.h"
3 #include "../cache.h"
4 #include "../evsel.h"
5 #include "../sort.h"
6 #include "../hist.h"
7 #include "../helpline.h"
8 #include "../string2.h"
9 #include "gtk.h"
10 #include <signal.h>
11 
12 #define MAX_COLUMNS			32
13 
14 static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
15 {
16 	int ret = 0;
17 	int len;
18 	va_list args;
19 	double percent;
20 	const char *markup;
21 	char *buf = hpp->buf;
22 	size_t size = hpp->size;
23 
24 	va_start(args, fmt);
25 	len = va_arg(args, int);
26 	percent = va_arg(args, double);
27 	va_end(args);
28 
29 	markup = perf_gtk__get_percent_color(percent);
30 	if (markup)
31 		ret += scnprintf(buf, size, markup);
32 
33 	ret += scnprintf(buf + ret, size - ret, fmt, len, percent);
34 
35 	if (markup)
36 		ret += scnprintf(buf + ret, size - ret, "</span>");
37 
38 	return ret;
39 }
40 
41 #define __HPP_COLOR_PERCENT_FN(_type, _field)					\
42 static u64 he_get_##_field(struct hist_entry *he)				\
43 {										\
44 	return he->stat._field;							\
45 }										\
46 										\
47 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt,		\
48 				       struct perf_hpp *hpp,			\
49 				       struct hist_entry *he)			\
50 {										\
51 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
52 			__percent_color_snprintf, true);			\
53 }
54 
55 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
56 static u64 he_get_acc_##_field(struct hist_entry *he)				\
57 {										\
58 	return he->stat_acc->_field;						\
59 }										\
60 										\
61 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt,		\
62 				       struct perf_hpp *hpp,			\
63 				       struct hist_entry *he)			\
64 {										\
65 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", 	\
66 			    __percent_color_snprintf, true);			\
67 }
68 
69 __HPP_COLOR_PERCENT_FN(overhead, period)
70 __HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
71 __HPP_COLOR_PERCENT_FN(overhead_us, period_us)
72 __HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
73 __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
74 __HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)
75 
76 #undef __HPP_COLOR_PERCENT_FN
77 
78 
79 void perf_gtk__init_hpp(void)
80 {
81 	perf_hpp__format[PERF_HPP__OVERHEAD].color =
82 				perf_gtk__hpp_color_overhead;
83 	perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
84 				perf_gtk__hpp_color_overhead_sys;
85 	perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
86 				perf_gtk__hpp_color_overhead_us;
87 	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
88 				perf_gtk__hpp_color_overhead_guest_sys;
89 	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
90 				perf_gtk__hpp_color_overhead_guest_us;
91 	perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
92 				perf_gtk__hpp_color_overhead_acc;
93 }
94 
95 static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store,
96 					 GtkTreeIter *parent, int col, u64 total)
97 {
98 	struct rb_node *nd;
99 	bool has_single_node = (rb_first(root) == rb_last(root));
100 
101 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
102 		struct callchain_node *node;
103 		struct callchain_list *chain;
104 		GtkTreeIter iter, new_parent;
105 		bool need_new_parent;
106 
107 		node = rb_entry(nd, struct callchain_node, rb_node);
108 
109 		new_parent = *parent;
110 		need_new_parent = !has_single_node;
111 
112 		callchain_node__make_parent_list(node);
113 
114 		list_for_each_entry(chain, &node->parent_val, list) {
115 			char buf[128];
116 
117 			gtk_tree_store_append(store, &iter, &new_parent);
118 
119 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
120 			gtk_tree_store_set(store, &iter, 0, buf, -1);
121 
122 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
123 			gtk_tree_store_set(store, &iter, col, buf, -1);
124 
125 			if (need_new_parent) {
126 				/*
127 				 * Only show the top-most symbol in a callchain
128 				 * if it's not the only callchain.
129 				 */
130 				new_parent = iter;
131 				need_new_parent = false;
132 			}
133 		}
134 
135 		list_for_each_entry(chain, &node->val, list) {
136 			char buf[128];
137 
138 			gtk_tree_store_append(store, &iter, &new_parent);
139 
140 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
141 			gtk_tree_store_set(store, &iter, 0, buf, -1);
142 
143 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
144 			gtk_tree_store_set(store, &iter, col, buf, -1);
145 
146 			if (need_new_parent) {
147 				/*
148 				 * Only show the top-most symbol in a callchain
149 				 * if it's not the only callchain.
150 				 */
151 				new_parent = iter;
152 				need_new_parent = false;
153 			}
154 		}
155 	}
156 }
157 
158 static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store,
159 					   GtkTreeIter *parent, int col, u64 total)
160 {
161 	struct rb_node *nd;
162 
163 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
164 		struct callchain_node *node;
165 		struct callchain_list *chain;
166 		GtkTreeIter iter;
167 		char buf[64];
168 		char *str, *str_alloc = NULL;
169 		bool first = true;
170 
171 		node = rb_entry(nd, struct callchain_node, rb_node);
172 
173 		callchain_node__make_parent_list(node);
174 
175 		list_for_each_entry(chain, &node->parent_val, list) {
176 			char name[1024];
177 
178 			callchain_list__sym_name(chain, name, sizeof(name), false);
179 
180 			if (asprintf(&str, "%s%s%s",
181 				     first ? "" : str_alloc,
182 				     first ? "" : symbol_conf.field_sep ?: "; ",
183 				     name) < 0)
184 				return;
185 
186 			first = false;
187 			free(str_alloc);
188 			str_alloc = str;
189 		}
190 
191 		list_for_each_entry(chain, &node->val, list) {
192 			char name[1024];
193 
194 			callchain_list__sym_name(chain, name, sizeof(name), false);
195 
196 			if (asprintf(&str, "%s%s%s",
197 				     first ? "" : str_alloc,
198 				     first ? "" : symbol_conf.field_sep ?: "; ",
199 				     name) < 0)
200 				return;
201 
202 			first = false;
203 			free(str_alloc);
204 			str_alloc = str;
205 		}
206 
207 		gtk_tree_store_append(store, &iter, parent);
208 
209 		callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
210 		gtk_tree_store_set(store, &iter, 0, buf, -1);
211 
212 		gtk_tree_store_set(store, &iter, col, str, -1);
213 
214 		free(str_alloc);
215 	}
216 }
217 
218 static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
219 					  GtkTreeIter *parent, int col, u64 total)
220 {
221 	struct rb_node *nd;
222 	bool has_single_node = (rb_first(root) == rb_last(root));
223 
224 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
225 		struct callchain_node *node;
226 		struct callchain_list *chain;
227 		GtkTreeIter iter, new_parent;
228 		bool need_new_parent;
229 		u64 child_total;
230 
231 		node = rb_entry(nd, struct callchain_node, rb_node);
232 
233 		new_parent = *parent;
234 		need_new_parent = !has_single_node && (node->val_nr > 1);
235 
236 		list_for_each_entry(chain, &node->val, list) {
237 			char buf[128];
238 
239 			gtk_tree_store_append(store, &iter, &new_parent);
240 
241 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
242 			gtk_tree_store_set(store, &iter, 0, buf, -1);
243 
244 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
245 			gtk_tree_store_set(store, &iter, col, buf, -1);
246 
247 			if (need_new_parent) {
248 				/*
249 				 * Only show the top-most symbol in a callchain
250 				 * if it's not the only callchain.
251 				 */
252 				new_parent = iter;
253 				need_new_parent = false;
254 			}
255 		}
256 
257 		if (callchain_param.mode == CHAIN_GRAPH_REL)
258 			child_total = node->children_hit;
259 		else
260 			child_total = total;
261 
262 		/* Now 'iter' contains info of the last callchain_list */
263 		perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
264 					      child_total);
265 	}
266 }
267 
268 static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
269 				    GtkTreeIter *parent, int col, u64 total)
270 {
271 	if (callchain_param.mode == CHAIN_FLAT)
272 		perf_gtk__add_callchain_flat(root, store, parent, col, total);
273 	else if (callchain_param.mode == CHAIN_FOLDED)
274 		perf_gtk__add_callchain_folded(root, store, parent, col, total);
275 	else
276 		perf_gtk__add_callchain_graph(root, store, parent, col, total);
277 }
278 
279 static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
280 			     GtkTreeViewColumn *col __maybe_unused,
281 			     gpointer user_data __maybe_unused)
282 {
283 	bool expanded = gtk_tree_view_row_expanded(view, path);
284 
285 	if (expanded)
286 		gtk_tree_view_collapse_row(view, path);
287 	else
288 		gtk_tree_view_expand_row(view, path, FALSE);
289 }
290 
291 static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
292 				 float min_pcnt)
293 {
294 	struct perf_hpp_fmt *fmt;
295 	GType col_types[MAX_COLUMNS];
296 	GtkCellRenderer *renderer;
297 	GtkTreeStore *store;
298 	struct rb_node *nd;
299 	GtkWidget *view;
300 	int col_idx;
301 	int sym_col = -1;
302 	int nr_cols;
303 	char s[512];
304 
305 	struct perf_hpp hpp = {
306 		.buf		= s,
307 		.size		= sizeof(s),
308 	};
309 
310 	nr_cols = 0;
311 
312 	hists__for_each_format(hists, fmt)
313 		col_types[nr_cols++] = G_TYPE_STRING;
314 
315 	store = gtk_tree_store_newv(nr_cols, col_types);
316 
317 	view = gtk_tree_view_new();
318 
319 	renderer = gtk_cell_renderer_text_new();
320 
321 	col_idx = 0;
322 
323 	hists__for_each_format(hists, fmt) {
324 		if (perf_hpp__should_skip(fmt, hists))
325 			continue;
326 
327 		/*
328 		 * XXX no way to determine where symcol column is..
329 		 *     Just use last column for now.
330 		 */
331 		if (perf_hpp__is_sort_entry(fmt))
332 			sym_col = col_idx;
333 
334 		gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
335 							    -1, fmt->name,
336 							    renderer, "markup",
337 							    col_idx++, NULL);
338 	}
339 
340 	for (col_idx = 0; col_idx < nr_cols; col_idx++) {
341 		GtkTreeViewColumn *column;
342 
343 		column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
344 		gtk_tree_view_column_set_resizable(column, TRUE);
345 
346 		if (col_idx == sym_col) {
347 			gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
348 							  column);
349 		}
350 	}
351 
352 	gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));
353 
354 	g_object_unref(GTK_TREE_MODEL(store));
355 
356 	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
357 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
358 		GtkTreeIter iter;
359 		u64 total = hists__total_period(h->hists);
360 		float percent;
361 
362 		if (h->filtered)
363 			continue;
364 
365 		percent = hist_entry__get_percent_limit(h);
366 		if (percent < min_pcnt)
367 			continue;
368 
369 		gtk_tree_store_append(store, &iter, NULL);
370 
371 		col_idx = 0;
372 
373 		hists__for_each_format(hists, fmt) {
374 			if (perf_hpp__should_skip(fmt, h->hists))
375 				continue;
376 
377 			if (fmt->color)
378 				fmt->color(fmt, &hpp, h);
379 			else
380 				fmt->entry(fmt, &hpp, h);
381 
382 			gtk_tree_store_set(store, &iter, col_idx++, s, -1);
383 		}
384 
385 		if (hist_entry__has_callchains(h) &&
386 		    symbol_conf.use_callchain && hists__has(hists, sym)) {
387 			if (callchain_param.mode == CHAIN_GRAPH_REL)
388 				total = symbol_conf.cumulate_callchain ?
389 					h->stat_acc->period : h->stat.period;
390 
391 			perf_gtk__add_callchain(&h->sorted_chain, store, &iter,
392 						sym_col, total);
393 		}
394 	}
395 
396 	gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);
397 
398 	g_signal_connect(view, "row-activated",
399 			 G_CALLBACK(on_row_activated), NULL);
400 	gtk_container_add(GTK_CONTAINER(window), view);
401 }
402 
403 static void perf_gtk__add_hierarchy_entries(struct hists *hists,
404 					    struct rb_root *root,
405 					    GtkTreeStore *store,
406 					    GtkTreeIter *parent,
407 					    struct perf_hpp *hpp,
408 					    float min_pcnt)
409 {
410 	int col_idx = 0;
411 	struct rb_node *node;
412 	struct hist_entry *he;
413 	struct perf_hpp_fmt *fmt;
414 	struct perf_hpp_list_node *fmt_node;
415 	u64 total = hists__total_period(hists);
416 	int size;
417 
418 	for (node = rb_first(root); node; node = rb_next(node)) {
419 		GtkTreeIter iter;
420 		float percent;
421 		char *bf;
422 
423 		he = rb_entry(node, struct hist_entry, rb_node);
424 		if (he->filtered)
425 			continue;
426 
427 		percent = hist_entry__get_percent_limit(he);
428 		if (percent < min_pcnt)
429 			continue;
430 
431 		gtk_tree_store_append(store, &iter, parent);
432 
433 		col_idx = 0;
434 
435 		/* the first hpp_list_node is for overhead columns */
436 		fmt_node = list_first_entry(&hists->hpp_formats,
437 					    struct perf_hpp_list_node, list);
438 		perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
439 			if (fmt->color)
440 				fmt->color(fmt, hpp, he);
441 			else
442 				fmt->entry(fmt, hpp, he);
443 
444 			gtk_tree_store_set(store, &iter, col_idx++, hpp->buf, -1);
445 		}
446 
447 		bf = hpp->buf;
448 		size = hpp->size;
449 		perf_hpp_list__for_each_format(he->hpp_list, fmt) {
450 			int ret;
451 
452 			if (fmt->color)
453 				ret = fmt->color(fmt, hpp, he);
454 			else
455 				ret = fmt->entry(fmt, hpp, he);
456 
457 			snprintf(hpp->buf + ret, hpp->size - ret, "  ");
458 			advance_hpp(hpp, ret + 2);
459 		}
460 
461 		gtk_tree_store_set(store, &iter, col_idx, ltrim(rtrim(bf)), -1);
462 
463 		if (!he->leaf) {
464 			hpp->buf = bf;
465 			hpp->size = size;
466 
467 			perf_gtk__add_hierarchy_entries(hists, &he->hroot_out,
468 							store, &iter, hpp,
469 							min_pcnt);
470 
471 			if (!hist_entry__has_hierarchy_children(he, min_pcnt)) {
472 				char buf[32];
473 				GtkTreeIter child;
474 
475 				snprintf(buf, sizeof(buf), "no entry >= %.2f%%",
476 					 min_pcnt);
477 
478 				gtk_tree_store_append(store, &child, &iter);
479 				gtk_tree_store_set(store, &child, col_idx, buf, -1);
480 			}
481 		}
482 
483 		if (he->leaf && hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
484 			if (callchain_param.mode == CHAIN_GRAPH_REL)
485 				total = symbol_conf.cumulate_callchain ?
486 					he->stat_acc->period : he->stat.period;
487 
488 			perf_gtk__add_callchain(&he->sorted_chain, store, &iter,
489 						col_idx, total);
490 		}
491 	}
492 
493 }
494 
495 static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
496 				     float min_pcnt)
497 {
498 	struct perf_hpp_fmt *fmt;
499 	struct perf_hpp_list_node *fmt_node;
500 	GType col_types[MAX_COLUMNS];
501 	GtkCellRenderer *renderer;
502 	GtkTreeStore *store;
503 	GtkWidget *view;
504 	int col_idx;
505 	int nr_cols = 0;
506 	char s[512];
507 	char buf[512];
508 	bool first_node, first_col;
509 	struct perf_hpp hpp = {
510 		.buf		= s,
511 		.size		= sizeof(s),
512 	};
513 
514 	hists__for_each_format(hists, fmt) {
515 		if (perf_hpp__is_sort_entry(fmt) ||
516 		    perf_hpp__is_dynamic_entry(fmt))
517 			break;
518 
519 		col_types[nr_cols++] = G_TYPE_STRING;
520 	}
521 	col_types[nr_cols++] = G_TYPE_STRING;
522 
523 	store = gtk_tree_store_newv(nr_cols, col_types);
524 	view = gtk_tree_view_new();
525 	renderer = gtk_cell_renderer_text_new();
526 
527 	col_idx = 0;
528 
529 	/* the first hpp_list_node is for overhead columns */
530 	fmt_node = list_first_entry(&hists->hpp_formats,
531 				    struct perf_hpp_list_node, list);
532 	perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
533 		gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
534 							    -1, fmt->name,
535 							    renderer, "markup",
536 							    col_idx++, NULL);
537 	}
538 
539 	/* construct merged column header since sort keys share single column */
540 	buf[0] = '\0';
541 	first_node = true;
542 	list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
543 		if (!first_node)
544 			strcat(buf, " / ");
545 		first_node = false;
546 
547 		first_col = true;
548 		perf_hpp_list__for_each_format(&fmt_node->hpp ,fmt) {
549 			if (perf_hpp__should_skip(fmt, hists))
550 				continue;
551 
552 			if (!first_col)
553 				strcat(buf, "+");
554 			first_col = false;
555 
556 			fmt->header(fmt, &hpp, hists, 0, NULL);
557 			strcat(buf, ltrim(rtrim(hpp.buf)));
558 		}
559 	}
560 
561 	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
562 						    -1, buf,
563 						    renderer, "markup",
564 						    col_idx++, NULL);
565 
566 	for (col_idx = 0; col_idx < nr_cols; col_idx++) {
567 		GtkTreeViewColumn *column;
568 
569 		column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
570 		gtk_tree_view_column_set_resizable(column, TRUE);
571 
572 		if (col_idx == 0) {
573 			gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
574 							  column);
575 		}
576 	}
577 
578 	gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));
579 	g_object_unref(GTK_TREE_MODEL(store));
580 
581 	perf_gtk__add_hierarchy_entries(hists, &hists->entries, store,
582 					NULL, &hpp, min_pcnt);
583 
584 	gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);
585 
586 	g_signal_connect(view, "row-activated",
587 			 G_CALLBACK(on_row_activated), NULL);
588 	gtk_container_add(GTK_CONTAINER(window), view);
589 }
590 
591 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
592 				  const char *help,
593 				  struct hist_browser_timer *hbt __maybe_unused,
594 				  float min_pcnt)
595 {
596 	struct perf_evsel *pos;
597 	GtkWidget *vbox;
598 	GtkWidget *notebook;
599 	GtkWidget *info_bar;
600 	GtkWidget *statbar;
601 	GtkWidget *window;
602 
603 	signal(SIGSEGV, perf_gtk__signal);
604 	signal(SIGFPE,  perf_gtk__signal);
605 	signal(SIGINT,  perf_gtk__signal);
606 	signal(SIGQUIT, perf_gtk__signal);
607 	signal(SIGTERM, perf_gtk__signal);
608 
609 	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
610 
611 	gtk_window_set_title(GTK_WINDOW(window), "perf report");
612 
613 	g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
614 
615 	pgctx = perf_gtk__activate_context(window);
616 	if (!pgctx)
617 		return -1;
618 
619 	vbox = gtk_vbox_new(FALSE, 0);
620 
621 	notebook = gtk_notebook_new();
622 
623 	gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
624 
625 	info_bar = perf_gtk__setup_info_bar();
626 	if (info_bar)
627 		gtk_box_pack_start(GTK_BOX(vbox), info_bar, FALSE, FALSE, 0);
628 
629 	statbar = perf_gtk__setup_statusbar();
630 	gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
631 
632 	gtk_container_add(GTK_CONTAINER(window), vbox);
633 
634 	evlist__for_each_entry(evlist, pos) {
635 		struct hists *hists = evsel__hists(pos);
636 		const char *evname = perf_evsel__name(pos);
637 		GtkWidget *scrolled_window;
638 		GtkWidget *tab_label;
639 		char buf[512];
640 		size_t size = sizeof(buf);
641 
642 		if (symbol_conf.event_group) {
643 			if (!perf_evsel__is_group_leader(pos))
644 				continue;
645 
646 			if (pos->nr_members > 1) {
647 				perf_evsel__group_desc(pos, buf, size);
648 				evname = buf;
649 			}
650 		}
651 
652 		scrolled_window = gtk_scrolled_window_new(NULL, NULL);
653 
654 		gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
655 							GTK_POLICY_AUTOMATIC,
656 							GTK_POLICY_AUTOMATIC);
657 
658 		if (symbol_conf.report_hierarchy)
659 			perf_gtk__show_hierarchy(scrolled_window, hists, min_pcnt);
660 		else
661 			perf_gtk__show_hists(scrolled_window, hists, min_pcnt);
662 
663 		tab_label = gtk_label_new(evname);
664 
665 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
666 	}
667 
668 	gtk_widget_show_all(window);
669 
670 	perf_gtk__resize_window(window);
671 
672 	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
673 
674 	ui_helpline__push(help);
675 
676 	gtk_main();
677 
678 	perf_gtk__deactivate_context(&pgctx);
679 
680 	return 0;
681 }
682