{"GREATER_THAN_512_MB", humanize.MiByte * 512, math.MaxInt64},
}

// ObjectsHistogramIntervals is the list of all intervals
// of object sizes to be included in objects histogram.
// Note: this histogram expands 1024B-1MB to incl. 1024B-64KB, 64KB-256KB, 256KB-512KB and 512KB-1MiB
var ObjectsHistogramIntervals = [dataUsageBucketLen]objectHistogramInterval{
	{"LESS_THAN_1024_B", 0, humanize.KiByte - 1},

	return root
}

// add a size to the histogram.
func (h *sizeHistogram) add(size int64) {
	// Fetch the histogram interval corresponding
	// to the passed object size.
	for i, interval := range ObjectsHistogramIntervals[:] {
		if size >= interval.start && size <= interval.end {
			h[i]++
			break
		}
	}
}

// mergeV1 is used to migrate data usage cache from sizeHistogramV1 to
// sizeHistogram