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Minor doc comment fixes 

Signed-off-by: beorn7 <beorn@grafana.com>
This commit is contained in:
beorn7 2021-01-29 22:24:27 +01:00
parent a9d0066408
commit 08104a0ef9
1 changed files with 2 additions and 1 deletions
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3
prometheus/histogram.go
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@ -170,7 +170,7 @@ type HistogramOpts struct {
// All observations with an absolute value of less or equal // All observations with an absolute value of less or equal
// SparseBucketsZeroThreshold are accumulated into a “zero” bucket. For // SparseBucketsZeroThreshold are accumulated into a “zero” bucket. For
// best results, this should be close to a bucket boundary. This is // best results, this should be close to a bucket boundary. This is
// moste easily accomplished by picking a power of ten. If // most easily accomplished by picking a power of ten. If
// SparseBucketsZeroThreshold is left at zero (or set to a negative // SparseBucketsZeroThreshold is left at zero (or set to a negative
// value), DefSparseBucketsZeroThreshold is used as the threshold. // value), DefSparseBucketsZeroThreshold is used as the threshold.
SparseBucketsZeroThreshold float64 SparseBucketsZeroThreshold float64
@ -536,6 +536,7 @@ func (h *histogram) observe(v float64, bucket int) {
// calculated as -0.9999999999999999 rather than -1 and thus // calculated as -0.9999999999999999 rather than -1 and thus
// yields a key unexpectedly one off. Maybe special-case precise // yields a key unexpectedly one off. Maybe special-case precise
// powers of 10. // powers of 10.
// TODO(beorn7): This needs special-casing for ±Inf and NaN.
sparseKey = int(math.Ceil(math.Log10(math.Abs(v)) * float64(h.sparseResolution))) sparseKey = int(math.Ceil(math.Log10(math.Abs(v)) * float64(h.sparseResolution)))
} }
// We increment h.countAndHotIdx so that the counter in the lower // We increment h.countAndHotIdx so that the counter in the lower