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added ddsketch permalink (#5775)

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Co-authored-by: Andrew Chubatiuk <andrew.chubatiuk@motional.com>
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Andrii Chubatiuk 2024-02-07 21:01:09 +02:00 committed by GitHub
parent e78e5ccfaa
commit 07213f4e0c
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1 changed files with 1 additions and 6 deletions
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7
lib/protoparser/datadogsketches/parser.go
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@ -9,7 +9,7 @@ import (
)
var (
// TODO: @AndrewChubatiuk, please provide a permalink for the original source code where these constants were extracted
// https://github.com/DataDog/opentelemetry-mapping-go/blob/48d52eeea60d28da2e14c154a24557c4d290c6e2/pkg/quantile/config.go
epsillon = 1.0 / 128
gamma = 1 + 2*epsillon
gammaLn = math.Log(gamma)
@ -313,9 +313,6 @@ func (d *Dogsketch) valueForQuantile(q float64) float64 {
vLow := f64(ks[i])
vHigh := vLow * gamma
switch i {
// TODO: I'm unsure this code is correct. i cannot equal len(ns) in this loop.
// @AndrewChubatiuk, please add a permalink to the original source code, which was used
// for writing this code, in the comments to this function.
case len(ns):
vHigh = d.Max
case 0:
@ -330,8 +327,6 @@ func f64(k int32) float64 {
switch {
case k < 0:
return -f64(-k)
// TODO: I'm unsure this logic is correct, since k can be smaller than math.MinInt16 and bigger than math.MaxInt16
// @AndrewChubatiuk, please add a permalink to the original source code, which was used for writing this code.
case k == math.MaxInt16 || k == math.MinInt16:
return math.Inf(int(k))
case k == 0: