double[] getTimeValuesSinceIdx(int idx) {
      int resultSize = count - idx;
      double[] result = new double[resultSize];
      for (int i = 0; i < resultSize; i++) {
        result[i] = getMilliTimeStamp(idx + i);
      }
      return result;
    }
Returns an array of time stamp values the first of which has the specified index. Each
returned time stamp is the number of millis since midnight, Jan 1, 1970 UTC.
geode-core/src/main/java/org/apache/geode/internal/statistics/StatArchiveReader.java