ength;
      const max = this.opsTimingData_[0].cmd_time;
      const min = this.opsTimingData_[len - 1].cmd_time;

      const width = this.chartWidth_ - CHART_PADDING_LEFT - CHART_PADDING_RIGHT;
      const height = this.chartHeight_ - AXIS_PADDING_TOP - AXIS_PADDING_BOTTOM;
      const barWidth = Math.floor(width / len);

      let opData;
      let opTiming;
      let opHeight;
      let opLabel;
      let barLeft;

      for (let b = 0; b < len; b++) {
        opData = this.opsTimingData_[b];
        o