diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index edbf854e8e1c..7c0585c146e1 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -643,6 +643,28 @@ unsigned int hists__sort_list_width(struct hists *hists)
 	return ret;
 }
 
+unsigned int hists__overhead_width(struct hists *hists)
+{
+	struct perf_hpp_fmt *fmt;
+	int ret = 0;
+	bool first = true;
+	struct perf_hpp dummy_hpp;
+
+	hists__for_each_format(hists, fmt) {
+		if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
+			break;
+
+		if (first)
+			first = false;
+		else
+			ret += 2;
+
+		ret += fmt->width(fmt, &dummy_hpp, hists_to_evsel(hists));
+	}
+
+	return ret;
+}
+
 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
 {
 	if (perf_hpp__is_sort_entry(fmt))
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 1c530428e087..e71691977a95 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1582,6 +1582,31 @@ struct rb_node *rb_hierarchy_prev(struct rb_node *node)
 	return &he->rb_node;
 }
 
+bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit)
+{
+	struct rb_node *node;
+	struct hist_entry *child;
+	float percent;
+
+	if (he->leaf)
+		return false;
+
+	node = rb_first(&he->hroot_out);
+	child = rb_entry(node, struct hist_entry, rb_node);
+
+	while (node && child->filtered) {
+		node = rb_next(node);
+		child = rb_entry(node, struct hist_entry, rb_node);
+	}
+
+	if (node)
+		percent = hist_entry__get_percent_limit(child);
+	else
+		percent = 0;
+
+	return node && percent >= limit;
+}
+
 static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
 				       enum hist_filter filter)
 {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 722aa447f705..da3e7b6e4615 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -410,6 +410,7 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 #endif
 
 unsigned int hists__sort_list_width(struct hists *hists);
+unsigned int hists__overhead_width(struct hists *hists);
 
 void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
 			  struct perf_sample *sample, bool nonany_branch_mode);
@@ -439,4 +440,6 @@ static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
 
 #define HIERARCHY_INDENT  3
 
+bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
+
 #endif	/* __PERF_HIST_H */