diff --git a/src/myx-cmake-example-features/main.cpp b/src/myx-cmake-example-features/main.cpp
index 82f1c6f..bb8053d 100644
--- a/src/myx-cmake-example-features/main.cpp
+++ b/src/myx-cmake-example-features/main.cpp
@@ -7,6 +7,7 @@
 #include <QCoreApplication>
 #include <QDebug>
 #include <QFile>
+#include <QRandomGenerator>
 #include <QTimer>
 
 /**
@@ -29,6 +30,40 @@ int unused( int a )
 }
 
 
+/**
+ * \brief Медленная функция
+ */
+int slowFunction()
+{
+	constexpr int size = 16 * 1024;
+	double a[size];
+	for ( int i = 0; i < size; i++ )
+	{
+		a[i] = QRandomGenerator::global()->bounded( 4 );
+		for ( int j = 0; j < i; j++ ) a[i] += sin( a[j] );
+		a[0] += a[i];
+	}
+	return( qRound( a[0] ) );
+} // slowFunction
+
+
+/**
+ * \brief Быстрая функция
+ */
+int fastFunction()
+{
+	constexpr int size = 8 * 1024;
+	double a[size];
+	for ( int i = 0; i < size; i++ )
+	{
+		a[i] = QRandomGenerator::global()->bounded( 4 );
+		for ( int j = 0; j < i; j++ ) a[i] += sin( a[j] );
+		a[0] += a[i];
+	}
+	return( qRound( a[0] ) );
+}
+
+
 /**
  * \brief Основная функция
  * \param argc Количество параметров командной строки
@@ -67,6 +102,11 @@ int main( int argc, char** argv )
 	QObject::connect( &app, SIGNAL(aboutToQuit()), &p, SLOT(process()));
 	QTimer::singleShot( 100, &app, SLOT(quit()));
 
+	#ifdef PROFILE
+	qCritical() << "Slow: " << slowFunction();
+	qCritical() << "Fast: " << fastFunction();
+	#endif
+
 	int arr[3];
 	qCritical() << arr[2];
 	return( QCoreApplication::exec() );