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Merge pull request #15991 from overleaf/mj-doc-updater-benchmark
[document-updater] Add script for benchmarking apply function GitOrigin-RevId: acb8174eec9d28870f05cca4802621f8f0c8a9bd
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78
services/document-updater/benchmarks/apply.js
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78
services/document-updater/benchmarks/apply.js
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@ -0,0 +1,78 @@
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const text = require('../app/js/sharejs/types/text.js')
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const TEST_RUNS = 1_000_000
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const MAX_OPS_BATCH_SIZE = 35
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const KB = 1000
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function runTestCase(testCase, documentSizeBytes) {
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const initialText = 'A'.repeat(documentSizeBytes)
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console.log(`test: ${testCase.name}`)
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console.log(`opsBatchSize\topsPerSeconds ${documentSizeBytes / 1000}KB`)
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for (let i = 1; i <= MAX_OPS_BATCH_SIZE; i++) {
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const ops = testCase(documentSizeBytes, i)
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let timeTotal = 0
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for (let i = 0; i < TEST_RUNS; i++) {
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const start = performance.now()
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try {
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text.apply(initialText, ops)
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} catch {
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console.error(`test failed: ${testCase.name}, with ops:`)
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console.error(ops)
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return
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}
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const done = performance.now()
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timeTotal += done - start
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}
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const opsPerSeconds = TEST_RUNS / (timeTotal / 1000)
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console.log(`${i}\t${opsPerSeconds}`)
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}
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}
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const randomAdditionTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, () => ({
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p: Math.floor(Math.random() * docSize),
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i: 'B',
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}))
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const sequentialAdditionsTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, (_, i) => ({ p: i + docSize, i: 'B' }))
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const sequentialAdditionsInMiddleTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, (_, i) => ({
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p: Math.floor(docSize / 2) + i,
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i: 'B',
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}))
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const randomDeletionTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, (_, i) => ({
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p: Math.floor(Math.random() * (docSize - 1 - i)),
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d: 'A',
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}))
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const sequentialDeletionTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, (_, i) => ({
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p: docSize - 1 - i,
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d: 'A',
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}))
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const sequentialDeletionInMiddleTestCase = (docSize, opsSize) =>
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Array.from({ length: opsSize }, (_, i) => ({
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p: Math.floor(docSize / 2),
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d: 'A',
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}))
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for (const docSize of [10 * KB, 100 * KB]) {
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for (const testCase of [
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randomAdditionTestCase,
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sequentialAdditionsTestCase,
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sequentialAdditionsInMiddleTestCase,
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randomDeletionTestCase,
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sequentialDeletionTestCase,
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sequentialDeletionInMiddleTestCase,
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]) {
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runTestCase(testCase, docSize)
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}
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}
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@ -9,6 +9,7 @@
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"test:acceptance": "npm run test:acceptance:_run -- --grep=$MOCHA_GREP",
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"test:acceptance": "npm run test:acceptance:_run -- --grep=$MOCHA_GREP",
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"test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js",
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"test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js",
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"test:unit": "npm run test:unit:_run -- --grep=$MOCHA_GREP",
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"test:unit": "npm run test:unit:_run -- --grep=$MOCHA_GREP",
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"benchmark:apply": "node benchmarks/apply",
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"nodemon": "node --watch $NODE_APP_OPTIONS app.js",
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"nodemon": "node --watch $NODE_APP_OPTIONS app.js",
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"lint": "eslint --max-warnings 0 --format unix .",
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"lint": "eslint --max-warnings 0 --format unix .",
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"format": "prettier --list-different $PWD/'**/*.js'",
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"format": "prettier --list-different $PWD/'**/*.js'",
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