hdrhistogram

package module

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Versions in this module

v1

v1.3.0

Jul 4, 2026

Changes in this version

type Histogram

+ func (h *Histogram) ValueAtPercentilesSlice(percentiles []float64) []int64

v1.2.0

Nov 9, 2025

v1.1.2

Aug 24, 2021

v1.1.1

Aug 16, 2021

v1.1.0

Mar 5, 2021

Changes in this version

type Histogram

+ func (h *Histogram) ValueAtPercentile(percentile float64) int64

+ func (h *Histogram) ValueAtPercentiles(percentiles []float64) (values map[float64]int64)

v1.0.1

Nov 24, 2020

Changes in this version

type Histogram

+ func (h *Histogram) ValuesAreEquivalent(value1, value2 int64) (result bool)

v1.0.0

Oct 17, 2020

Changes in this version

+ const ENCODING_HEADER_SIZE

+ const HISTOGRAM_LOG_FORMAT_VERSION

+ const MsToNsRatio

+ const V2CompressedEncodingCookieBase

+ const V2EncodingCookieBase

type Histogram

+ func Decode(encoded []byte) (rh *Histogram, err error)

+ func (h *Histogram) CumulativeDistributionWithTicks(ticksPerHalfDistance int32) []Bracket

+ func (h *Histogram) Encode(version int32) (buffer []byte, err error)

+ func (h *Histogram) EndTimeMs() int64

+ func (h *Histogram) PercentilesPrint(writer io.Writer, ticksPerHalfDistance int32, valueScale float64) (outputWriter io.Writer, err error)

+ func (h *Histogram) SetEndTimeMs(endTimeMs int64)

+ func (h *Histogram) SetStartTimeMs(startTimeMs int64)

+ func (h *Histogram) SetTag(tag string)

+ func (h *Histogram) StartTimeMs() int64

+ func (h *Histogram) Tag() string

+ type HistogramLogOptions struct

+ func DefaultHistogramLogOptions() *HistogramLogOptions

+ type HistogramLogReader struct

+ func NewHistogramLogReader(log io.Reader) *HistogramLogReader

+ func (hlr *HistogramLogReader) NextIntervalHistogram() (histogram *Histogram, err error)

+ func (hlr *HistogramLogReader) NextIntervalHistogramWithRange(rangeStartTimeSec, rangeEndTimeSec float64, absolute bool) (histogram *Histogram, err error)

+ func (hlr *HistogramLogReader) ObservedMax() bool

+ func (hlr *HistogramLogReader) ObservedMin() bool

+ func (hlr *HistogramLogReader) RangeObservedMax() int64

+ func (hlr *HistogramLogReader) RangeObservedMin() int64

+ type HistogramLogWriter struct

+ func NewHistogramLogWriter(log io.Writer) *HistogramLogWriter

+ func (lw *HistogramLogWriter) BaseTime() int64

+ func (lw *HistogramLogWriter) OutputBaseTime(base_time_msec int64) (err error)

+ func (lw *HistogramLogWriter) OutputComment(comment string) (err error)

+ func (lw *HistogramLogWriter) OutputIntervalHistogram(histogram *Histogram) (err error)

+ func (lw *HistogramLogWriter) OutputIntervalHistogramWithLogOptions(histogram *Histogram, logOptions *HistogramLogOptions) (err error)

+ func (lw *HistogramLogWriter) OutputLegend() (err error)

+ func (lw *HistogramLogWriter) OutputLogFormatVersion() (err error)

+ func (lw *HistogramLogWriter) OutputStartTime(start_time_msec int64) (err error)

+ func (lw *HistogramLogWriter) SetBaseTime(baseTime int64)

v0

v0.9.0

Oct 10, 2016

Changes in this version

+ type Bar struct

+ Count int64

+ From int64

+ To int64

+ func (b Bar) String() string

+ type Bracket struct

+ Count int64

+ Quantile float64

+ ValueAt int64

+ type Histogram struct

+ func Import(s *Snapshot) *Histogram

+ func New(minValue, maxValue int64, sigfigs int) *Histogram

+ func (h *Histogram) ByteSize() int

+ func (h *Histogram) CumulativeDistribution() []Bracket

+ func (h *Histogram) Distribution() (result []Bar)

+ func (h *Histogram) Equals(other *Histogram) bool

+ func (h *Histogram) Export() *Snapshot

+ func (h *Histogram) HighestTrackableValue() int64

+ func (h *Histogram) LowestTrackableValue() int64

+ func (h *Histogram) Max() int64

+ func (h *Histogram) Mean() float64

+ func (h *Histogram) Merge(from *Histogram) (dropped int64)

+ func (h *Histogram) Min() int64

+ func (h *Histogram) RecordCorrectedValue(v, expectedInterval int64) error

+ func (h *Histogram) RecordValue(v int64) error

+ func (h *Histogram) RecordValues(v, n int64) error

+ func (h *Histogram) Reset()

+ func (h *Histogram) SignificantFigures() int64

+ func (h *Histogram) StdDev() float64

+ func (h *Histogram) TotalCount() int64

+ func (h *Histogram) ValueAtQuantile(q float64) int64

+ type Snapshot struct

+ Counts []int64

+ HighestTrackableValue int64

+ LowestTrackableValue int64

+ SignificantFigures int64

+ type WindowedHistogram struct

+ Current *Histogram

+ func NewWindowed(n int, minValue, maxValue int64, sigfigs int) *WindowedHistogram

+ func (w *WindowedHistogram) Merge() *Histogram

+ func (w *WindowedHistogram) Rotate()

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