                   transition: ['shape'],
                    shape: rectShape,
                    style: api.style()
                };
            }

            option = {
                tooltip: {
                    formatter: function (params) {
                        return params.marker + params.name + ': ' + params.value[3] + ' ms';
                    }
                },
                title: {
                    text: 'Profile',
                    left: 'center'
                },
        