84 lines
1.6 KiB
JavaScript
84 lines
1.6 KiB
JavaScript
'use strict'
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const percentiles = module.exports.percentiles = [
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0.001,
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0.01,
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0.1,
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1,
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2.5,
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10,
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25,
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50,
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75,
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90,
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97.5,
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99,
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99.9,
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99.99,
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99.999
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]
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module.exports.histAsObj = function (hist, total) {
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const mean = Math.ceil(getMean(hist) * 100) / 100
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const result = {
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average: mean, // added for backward compat with wrk
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mean: mean,
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stddev: Math.ceil(getStdDeviation(hist) * 100) / 100,
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min: getMin(hist),
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max: getMax(hist)
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}
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if (typeof total === 'number') {
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result.total = total
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}
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return result
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}
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module.exports.addPercentiles = function (hist, result) {
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percentiles.forEach(function (perc) {
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const key = ('p' + perc).replace('.', '_')
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if (typeof hist.percentile === 'function') {
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result[key] = hist.percentile(perc)
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} else if (typeof hist.getValueAtPercentile === 'function') {
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result[key] = hist.getValueAtPercentile(perc)
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}
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})
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return result
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}
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function getMean (hist) {
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if (typeof hist.mean === 'function') {
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return hist.mean()
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}
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if (typeof hist.getMean === 'function') {
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return hist.getMean()
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}
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return hist.mean
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}
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function getMin (hist) {
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if (typeof hist.min === 'function') {
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return hist.min()
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}
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return hist.minNonZeroValue
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}
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function getMax (hist) {
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if (typeof hist.max === 'function') {
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return hist.max()
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}
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return hist.maxValue
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}
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function getStdDeviation (hist) {
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if (typeof hist.stddev === 'function') {
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return hist.stddev()
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}
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if (typeof hist.getStdDeviation === 'function') {
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return hist.getStdDeviation()
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}
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return hist.stdDeviation
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}
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