ounter = model.kernel.counters['global.SystemMemory'];
    if (memoryCounter === undefined) return;

    const tracks = [];
    for (const name of SYSTEM_MEMORY_SERIES_NAMES) {
      const series = memoryCounter.series.find(series => series.name === name);
      if (series === undefined || series.samples.length === 0) return;

      const chartPoints = [];
      const valueRange = new tr.b.math.Range();
      for (const sample of series.samples) {
        chartPoints.push(new tr.ui.tracks.ChartPoint(
      