hasAlloc := false

	line := s.Text()
	p.PeriodType = &ValueType{Type: "space", Unit: "bytes"}
	if header := heapHeaderRE.FindStringSubmatch(line); header != nil {
		sampling, p.Period, hasAlloc, err = parseHeapHeader(line)
		if err != nil {
			return nil, err
		}
	} else if header = growthHeaderRE.FindStringSubmatch(line); header != nil {
		p.Period = 1