Stuck on an issue?
Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.
And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.
Warning from PackFileCacheStrategy: Serializing big strings (747kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
See original GitHub issueBug report
What is the current behavior?
The same warnings occur multiple times when compile is finished.
I add console.trace() as https://github.com/webpack-contrib/mini-css-extract-plugin/issues/643 mentioned.
[webpack.cache.PackFileCacheStrategy] Serializing big strings (361kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
Trace
at process (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:501:14)
at write (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:387:6)
at PlainObjectSerializer.serialize (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\PlainObjectSerializer.js:56:5)
at process (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:480:17)
at write (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:387:6)
at MapObjectSerializer.serialize (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\MapObjectSerializer.js:14:4)
at process (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:480:17)
at write (C:\Users\...\react-ts\node_modules\webpack\lib\serialization\ObjectMiddleware.js:387:6)
at PackContentItems.serialize (C:\Users\...\react-ts\node_modules\webpack\lib\cache\PackFileCacheStrategy.js:655:4)
at ClassSerializer.serialize (C:\Users\...\react-ts\node_modules\webpack\lib\util\makeSerializable.js:15:7)
If the current behavior is a bug, please provide the steps to reproduce. It is a pretty large project, and I cannot reproduce the issue currently. Maybe you can offer some instructions?
What is the expected behavior? No warnings.
Other relevant information: webpack version: 5.51.1 Node.js version: v16.13.0 Operating System: Windows 10
package.json
"dependencies": {
"@ant-design/icons": "^4.0.0-alpha.18",
"@antv/f2": "^3.6.4-beta.2",
"@antv/g2": "^4.1.11",
"@antv/g2plot": "^2.3.2",
"@babel/runtime": "^7.6.3",
"@babel/runtime-corejs3": "^7.7.7",
"@loadable/component": "^5.10.3",
"@material-ui/core": "^4.8.3",
"@material-ui/styles": "^4.9.14",
"@reduxjs/toolkit": "^1.6.1",
"@tippyjs/react": "^4.2.5",
"@types/numeral": "0.0.28",
"animate.css": "^3.7.2",
"antd": "4.1.4",
"antd-dayjs-webpack-plugin": "^1.0.0",
"antd-mobile": "^2.3.1",
"axios": "^0.21.1",
"better-xlsx": "^0.7.5",
"bignumber.js": "^9.0.0",
"bizcharts": "^3.5.9",
"bizgoblin": "^0.2.0",
"blueimp-md5": "^2.12.0",
"classnames": "^2.3.1",
"copy-to-clipboard": "^3.3.1",
"crypto-js": "^3.1.9-1",
"dayjs": "^1.8.18",
"file-saver": "^2.0.5",
"fingerprintjs2": "^2.1.0",
"html2canvas": "1.0.0-rc.4",
"jquery": "^3.5.1",
"js-audio-recorder": "^1.0.7",
"js-base64": "^2.5.1",
"js-cookie": "^2.2.1",
"jstz": "^2.1.1",
"klinecharts": "7.5.0",
"lamejs": "^1.2.0",
"lodash": "^4.17.15",
"lodash.random": "^3.2.0",
"lodash.samplesize": "^4.2.0",
"moment": "^2.29.1",
"numeral": "^2.0.6",
"pako": "^1.0.10",
"qrcode.react": "^1.0.0",
"qs": "^6.9.1",
"react": "^17.0.2",
"react-color": "^2.19.3",
"react-content-loader": "^4.3.4",
"react-copy-to-clipboard": "^5.0.3",
"react-dom": "^17.0.2",
"react-globe": "^5.0.2",
"react-grid-layout": "^1.1.1",
"react-helmet": "^6.1.0",
"react-lazyload": "^2.6.5",
"react-number-format": "^4.3.1",
"react-redux": "^7.2.4",
"react-router-dom": "^5.2.1",
"react-slick": "^0.26.1",
"react-transition-group": "^4.4.2",
"reconnecting-websocket": "^4.2.0",
"redux": "^4.1.1",
"redux-thunk": "^2.3.0",
"slick-carousel": "^1.8.1",
"sprintf-js": "^1.1.2",
"three": "0.109.0",
"tim-js-sdk": "^2.15.0",
"tim-upload-plugin": "^1.0.3",
"trading-view": "^1.0.7",
"trim-newlines": "^3.0.1",
"ua-parser-js": "^0.7.20",
"use-error-boundary": "^2.0.6",
"use-long-press": "^1.1.1",
"web-widget": "^0.3.6"
},
"devDependencies": {
"@babel/core": "^7.15.0",
"@babel/plugin-proposal-class-properties": "^7.14.5",
"@babel/plugin-proposal-nullish-coalescing-operator": "^7.14.5",
"@babel/plugin-proposal-optional-chaining": "^7.14.5",
"@babel/plugin-transform-runtime": "^7.15.0",
"@babel/plugin-transform-typescript": "^7.15.4",
"@babel/preset-env": "^7.15.0",
"@babel/preset-react": "^7.14.5",
"@babel/preset-typescript": "^7.15.0",
"@pmmmwh/react-refresh-webpack-plugin": "^0.5.0-rc.6",
"@types/blueimp-md5": "^2.7.0",
"@types/crypto-js": "^3.1.43",
"@types/file-saver": "^2.0.1",
"@types/fingerprintjs2": "^2.0.0",
"@types/jquery": "^3.5.5",
"@types/js-base64": "^2.3.1",
"@types/js-cookie": "^2.2.4",
"@types/loadable__component": "^5.10.0",
"@types/lodash": "^4.14.144",
"@types/mockjs": "^1.0.2",
"@types/node": "^12.12.47",
"@types/pako": "^1.0.1",
"@types/puppeteer": "^3.0.1",
"@types/qrcode.react": "^1.0.0",
"@types/qs": "^6.5.3",
"@types/react": "^16.9.34",
"@types/react-copy-to-clipboard": "^4.3.0",
"@types/react-dom": "^16.9.6",
"@types/react-grid-layout": "^0.17.2",
"@types/react-helmet": "^5.0.16",
"@types/react-lazyload": "^2.6.0",
"@types/react-redux": "^7.1.5",
"@types/react-router-dom": "^5.1.1",
"@types/react-slick": "^0.23.4",
"@types/sprintf-js": "^1.1.2",
"@types/ua-parser-js": "^0.7.33",
"@types/webpack-env": "^1.16.0",
"@typescript-eslint/eslint-plugin": "^2.6.0",
"@typescript-eslint/parser": "^2.6.0",
"autoprefixer": "^10.3.6",
"babel-eslint": "^10.0.3",
"babel-loader": "^8.0.6",
"babel-plugin-import": "^1.12.2",
"babel-plugin-lodash": "^3.3.4",
"circular-dependency-plugin": "^5.2.0",
"clean-webpack-plugin": "^3.0.0",
"css-loader": "^6.3.0",
"css-minimizer-webpack-plugin": "^3.0.2",
"eslint": "^6.6.0",
"eslint-config-standard": "^14.1.1",
"eslint-plugin-import": "^2.22.1",
"eslint-plugin-node": "^10.0.0",
"eslint-plugin-promise": "^4.2.1",
"eslint-plugin-react": "^7.16.0",
"eslint-plugin-standard": "^4.0.1",
"fibers": "^5.0.0",
"fork-ts-checker-webpack-plugin": "^6.3.2",
"html-webpack-plugin": "^5.3.2",
"image-minimizer-webpack-plugin": "^2.2.0",
"imagemin-gifsicle": "^7.0.0",
"imagemin-jpegtran": "^7.0.0",
"imagemin-optipng": "^8.0.0",
"imagemin-pngquant": "^9.0.2",
"imagemin-svgo": "^9.0.0",
"less": "^3.10.3",
"less-loader": "^10.0.1",
"mini-css-extract-plugin": "^2.2.0",
"mockjs": "^1.1.0",
"postcss": "^8.3.6",
"postcss-loader": "^6.1.1",
"puppeteer": "^4.0.1",
"react-refresh": "^0.10.0",
"redux-devtools-extension": "^2.13.8",
"sass": "^1.38.1",
"sass-loader": "^12.1.0",
"shelljs": "^0.8.4",
"speed-measure-webpack-plugin": "^1.5.0",
"style-loader": "^1.0.0",
"terser-webpack-plugin": "^3.0.0",
"timers-browserify": "^2.0.12",
"ts-node": "^8.10.2",
"typescript": "^4.4.2",
"webpack": "^5.51.1",
"webpack-bundle-analyzer": "^4.4.2",
"webpack-cli": "^4.8.0",
"webpack-dev-server": "^4.0.0",
"webpack-merge": "^5.8.0",
"webpackbar": "^5.0.0-3",
"yargs": "^15.3.1"
}
webpack.config.js
module.exports = {
entry: {
main: './src/index.tsx'
},
mode: 'production',
stats: "errors-only",
resolve: {
symlinks: false,
extensions: [ '.tsx', '.ts', '.js', '.jsx' ],
fallback: {
'timers': require.resolve('timers-browserify')
}
},
output: {
chunkFilename: `${buildRoot}/[name]-[contenthash:8].min.js`,
filename: `${buildRoot}/[name]-[contenthash:8].min.js`,
},
cache: {
type: 'filesystem',
name: `${projectName}_${isRelease ? 'release' : 'prod'}`,
buildDependencies: {
config: [ __filename ]
},
},
module: {
rules: [ {
test: /\.[tj]sx?$/,
exclude: /node_modules/,
use: [
'babel-loader?cacheDirectory',
]
},
{
test: /\.less$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
publicPath: '../'
}
},
'css-loader',
{
loader: 'less-loader',
options: {
lessOptions: {
modifyVars: {
styleVariables, '@primary-color': '#00d0c4'
},
javascriptEnabled: true
}
}
}
]
},
{
test: /\.css$/,
include: /node_modules/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
publicPath: '../'
}
},
'css-loader',
'postcss-loader',
]
},
{
test: /\.(sa|sc)ss$/,
exclude: /node_modules/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
publicPath: '../'
}
},
{
loader: 'css-loader',
options: {
modules: {
exportLocalsConvention: 'camelCase'
},
}
},
'postcss-loader',
{
loader: 'sass-loader',
options: {
sassOptions: {
charset: false
},
additionalData: Object.keys(styleVariables)
.map(k => `$${k}: ${styleVariables[ k ]};`)
.join('\n')
}
}
]
},
{
test: /\.(jpe?g|png|gif|webp|svg)$/i,
type: 'asset',
generator: {
filename: `${buildRoot}/images/[name]-[contenthash:8][ext]`,
publicPath: '../../'
},
parser: {
dataUrlCondition: {
maxSize: 5 * 1024
}
}
},
{
test: /\.(woff|eot|ttf|otf)$/i,
type: 'asset/resource',
generator: {
filename: `${buildRoot}/font/[name]-[contenthash:8][ext]`,
publicPath: '../../'
}
} ]
},
externals: {
react: 'React',
'react-dom': 'ReactDOM'
},
plugins: [
new CleanWebpackPlugin({
cleanOnceBeforeBuildPatterns: [ buildRoot ]
}),
new MiniCssExtractPlugin({
filename: `${buildRoot}/css/[name]-[contenthash:8].min.css`,
ignoreOrder: true
}),
new HtmlWebpackPlugin(),
],
optimization: {
runtimeChunk: 'single',
moduleIds: 'deterministic',
minimizer: [
new TerserPlugin(),
new CssMinimizerPlugin(),
new ImageMinimizerPlugin({
test: /\.(jpe?g|png|gif|svg)$/i,
severityError: 'warning',
filter: (source) => source.byteLength > 50000,
minimizerOptions: {
plugins: [
[ 'jpegtran', {progressive: true} ],
[ 'pngquant', {
speed: 10
} ],
[ 'optipng', {
optimizationLevel: 0
} ],
[ 'svgo' ],
],
}
})
]
}
}
Issue Analytics
- State:
- Created 2 years ago
- Comments:15 (9 by maintainers)
Top Results From Across the Web
Suppress "Serializing big strings impacts deserialization ...
Per the title, wondering if it is possible to suppress the "Serializing big strings impacts deserialization performance" warning messages ...
Read more >New site design is causing problems - Ciaervo
The warning I see during the build process is: Serializing big strings (319kiB) impacts deserialization performance (consider using Buffer ...
Read more >Another “Serializing big strings” warning with Webpack 5 ...
Another “Serializing big strings” warning with Webpack 5 filesystem cache and source maps.
Read more >How to write custom converters for JSON serialization - .NET
In the code you write for a custom converter, be aware of the substantial performance penalty for using new JsonSerializerOptions instances.
Read more >msgpackr - npm
Install with: npm i msgpackr. And import or require it for basic standard serialization/encoding ( pack ) and deserialization/decoding ...
Read more >
Top Related Medium Post
No results found
Top Related StackOverflow Question
No results found
Troubleshoot Live Code
Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free
Top Related Reddit Thread
No results found
Top Related Hackernoon Post
No results found
Top Related Tweet
No results found
Top Related Dev.to Post
No results found
Top Related Hashnode Post
No results found
It turns out I’m use an old version of
terser-webpack-plugin😂. Solved by updating the plugin to the latest version.Will be great if you provide example