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Test Info:
- Manifest: intl/benchmarks/perftest.toml
- Manifest: intl/benchmarks/xpcshell.toml
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
// @ts-check
var perfMetadata = {
owner: "Internationalization Team",
name: "Intl.PluralRules",
description: "Test the speed of the Intl.PluralRules implementation.",
options: {
default: {
perfherder: true,
perfherder_metrics: [
{
name: "Intl.PluralRules constructor iterations",
unit: "iterations",
},
{ name: "Intl.PluralRules constructor accumulatedTime", unit: "ms" },
{ name: "Intl.PluralRules constructor perCallTime", unit: "ms" },
{
name: "Intl.PluralRules.prototype.select iterations",
unit: "iterations",
},
{
name: "Intl.PluralRules.prototype.select accumulatedTime",
unit: "ms",
},
{
name: "Intl.PluralRules.prototype.select perCallTime",
unit: "ms",
},
{
name: "Intl.PluralRules pluralCategories iterations",
unit: "iterations",
},
{
name: "Intl.PluralRules pluralCategories accumulatedTime",
unit: "ms",
},
{
name: "Intl.PluralRules pluralCategories perCallTime",
unit: "ms",
},
],
verbose: true,
},
},
tags: ["intl", "ecma402"],
};
add_task(function measure_pluralrules() {
const measureConstructor = measureIterations("Intl.PluralRules constructor");
const measureSelect = measureIterations("Intl.PluralRules.prototype.select");
const measurePluralCategories = measureIterations(
"Intl.PluralRules pluralCategories"
);
// Re-use the config between runs.
const fieldOptions = {
type: ["cardinal", "ordinal"],
};
const config = {};
function randomizeConfig(name, chance) {
const option = fieldOptions[name];
if (prng() < chance) {
config[name] = option[Math.floor(option.length * prng())];
} else {
delete config[name];
}
}
// Split each step of the benchmark into separate JS functions so that performance
// profiles are easy to analyze.
function benchmarkPluralRulesConstructor() {
for (let i = 0; i < 1000; i++) {
// Create a random configuration powered by a pseudo-random number generator. This
// way the configurations will be the same between 2 different runs.
const locale = pickRepresentativeLocale();
randomizeConfig("type", 0.5);
// Measure the constructor.
measureConstructor.start();
const pr = new Intl.PluralRules(locale, config);
measureConstructor.stop();
benchmarkSelectOperation(pr);
benchmarkPluralCategories(pr);
}
}
function benchmarkSelectOperation(pr) {
// Measure the select operation.
for (let j = 0; j < 1000; j++) {
// TODO: We may want to extend this to non-integer values in the future.
const num = Math.floor(prng() * 10000);
measureSelect.start();
pr.select(num);
measureSelect.stop();
}
}
function benchmarkPluralCategories(pr) {
measurePluralCategories.start();
pr.resolvedOptions().pluralCategories;
measurePluralCategories.stop();
}
benchmarkPluralRulesConstructor();
measureConstructor.reportMetrics();
measureSelect.reportMetrics();
measurePluralCategories.reportMetrics();
ok(true);
});