Files
orca/config/scripts/rich-markdown-comment-scan-benchmark.mjs
T

105 lines
3.4 KiB
JavaScript

import assert from 'node:assert/strict'
import { execFileSync } from 'node:child_process'
import { readFileSync } from 'node:fs'
import { dirname, resolve } from 'node:path'
import { performance } from 'node:perf_hooks'
import { build } from 'esbuild'
import { buildCounterbalancedSchedule } from './counterbalanced-benchmark-schedule.mjs'
const baseline = process.argv[2] ?? '20ab9950654'
const file = 'src/renderer/src/components/editor/markdown-rich-mode.ts'
async function load(contents) {
const result = await build({
stdin: { contents, loader: 'ts', resolveDir: dirname(resolve(file)) },
bundle: true,
platform: 'node',
format: 'esm',
write: false,
plugins: [
{
name: 'cached-round-trip',
setup(bundler) {
bundler.onResolve({ filter: /markdown-round-trip$|^@\/i18n\/i18n$/ }, (args) => ({
path: args.path,
namespace: 'bench'
}))
bundler.onLoad({ filter: /.*/, namespace: 'bench' }, (args) => ({
contents: args.path.endsWith('markdown-round-trip')
? 'export const getRichMarkdownRoundTripOutput = (content) => content'
: 'export const translate = (_key, fallback) => fallback',
loader: 'js'
}))
}
}
]
})
return import(
`data:text/javascript;base64,${Buffer.from(result.outputFiles[0].text).toString('base64')}`
)
}
const arms = {
before: await load(execFileSync('git', ['show', `${baseline}:${file}`], { encoding: 'utf8' })),
after: await load(readFileSync(file, 'utf8'))
}
const results = []
for (const [name, content] of [
['plain', '# Heading\nOrdinary prose with <placeholder>.'],
['complete', '<!-- metadata --><span>text</span>'],
['unclosed-1000', '<!--x'.repeat(1000)],
['unclosed-8000', '<!--x'.repeat(8000)],
['preserved-html-and-unclosed-8000', `<span>text</span>${'<!--x'.repeat(8000)}<b>tail</b>`]
]) {
assert.equal(
arms.after.getMarkdownRichModeUnsupportedReason(content),
arms.before.getMarkdownRichModeUnsupportedReason(content)
)
const iterations = name.includes('unclosed') ? 2 : 100
function run(arm) {
global.gc?.()
const start = performance.now()
const cpuStart = process.cpuUsage()
for (let i = 0; i < iterations; i++) {
arms[arm].getMarkdownRichModeUnsupportedReason(content)
}
const cpu = process.cpuUsage(cpuStart)
return {
ms: (performance.now() - start) / iterations,
cpuMs: (cpu.user + cpu.system) / 1000 / iterations
}
}
run('before')
run('after')
const samples = { before: [], after: [] }
for (const pair of buildCounterbalancedSchedule(10, 'before', 'after')) {
for (const arm of pair) {
samples[arm].push(run(arm))
}
}
const median = (values) => {
const sorted = [...values].sort((a, b) => a - b)
return (sorted[4] + sorted[5]) / 2
}
results.push({
name,
beforeCpuMs: median(samples.before.map((s) => s.cpuMs)),
afterCpuMs: median(samples.after.map((s) => s.cpuMs)),
beforeMs: median(samples.before.map((s) => s.ms)),
afterMs: median(samples.after.map((s) => s.ms)),
samples
})
}
console.log(
JSON.stringify(
{
baseline,
node: process.version,
platform: process.platform,
roundTrip:
'identity stub, modeling an already-cached lossless round trip; editor parsing excluded',
results
},
null,
2
)
)