blob: e1364e1e26577e9ca80474b4607e4787a5b36a39 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package metrics
// Float64Histogram represents a distribution of float64 values.
type Float64Histogram struct {
// Counts contains the weights for each histogram bucket. The length of
// Counts is equal to the length of Buckets (in the metric description)
// plus one to account for the implicit minimum bucket.
//
// Given N buckets, the following is the mathematical relationship between
// Counts and Buckets.
// count[0] is the weight of the range (-inf, bucket[0])
// count[n] is the weight of the range [bucket[n], bucket[n+1]), for 0 < n < N-1
// count[N-1] is the weight of the range [bucket[N-1], inf)
Counts []uint64
// Buckets contains the boundaries between histogram buckets, in increasing order.
//
// Because this slice contains boundaries, there are len(Buckets)+1 counts:
// a count for all values less than the first boundary, a count covering each
// [slice[i], slice[i+1]) interval, and a count for all values greater than or
// equal to the last boundary.
//
// For a given metric name, the value of Buckets is guaranteed not to change
// between calls until program exit.
Buckets []float64
}
|
