From cold start the profiler crashes on me:
| (#3) Profiling: Build App
/home/storyteller/Web/Literary-Universe/app/node_modules/.cache/meteor/performance/scripts/monitor-bundler.sh: line 189: 1051493 Killed
Entrypoints should be files that serve as the starting point for importing the rest of the project. Due to the nature of the project (possibly related to Blaze or FlowRouter), it might not support entrypoints. Since I’m not familiar with that stack, I can’t confirm. Perhaps @jkuester or @harry97 could provide more insight. Have you seen any Blaze projects defining “meteor.mainModule” entrypoints?
Thanks for adding this feature, the profiler works well in this 2019 app upgraded all the way to Meteor 3.2 
with the entrypoints in package.json
[Edit] updating the relevant parts here :
| Top leaves:
| other bundler.bundle....................................27,707 ms (1)
| Babel.compile...........................................14,734 ms (1646)
| other ImportScanner#scanImports for the app..............2,117 ms (3)
| other sqlite query.......................................1,902 ms (6)
| jsAnalyze.parse..........................................1,744 ms (6317)
| files.readFile...........................................1,263 ms (19076)
| getPrelinkedFiles toStringWithSourceMap..................1,079 ms (343)
| other ImportScanner#scanImports for allohouston:ys-crossfilter.700 ms (2). <- custom package
| other plugin templating-compiler...........................647 ms (2)
| linker File#getPrelinkedOutput.............................558 ms (6890)
| files.writeFile............................................510 ms (3672)
| files.readdirWithTypes.....................................508 ms (24876)
| other linker File#computeAssignedVariables.................478 ms (5663)
| other ImportScanner#scanImports for allohouston:general....430 ms (3) <- custom package
| other ImportScanner#resolve................................420 ms (11854)
| files.stat.................................................313 ms (19709)
| other reifyCompileWithCache................................301 ms (2319)
| other PackageSourceBatch#_linkJS...........................278 ms (343)
| files.rename...............................................215 ms (2783)
| other compileUnibuild (the app)............................205 ms (3)
| CssTools.stringifyCss......................................201 ms (664)
| other ImportScanner#scanImports for universe:i18n..........156 ms (3)
| other ImportScanner#scanImports for base64.................147 ms (3)
| other ImportScanner#findImportedModuleIdentifiers..........140 ms (5426)
| other ImportScanner#realPath...............................133 ms (6061)
| files.watchFile............................................121 ms (20717)
| other PackageSource#_findSources for os....................109 ms (2)
| files.rm_recursive.........................................108 ms (347)
|
| (#3) Total: 29,823 ms (Build App)
===============================
Metrics - Cold start
===============================
- Meteor(resolveConstraints): 2111 ms
- Meteor(prepareProjectForBuild): 8703 ms
- Meteor(Build App): 32479 ms
- Meteor(Server startup): 1760 ms
* Total(Meteor): 45053 ms
===============================
Metrics - Cache start
===============================
- Meteor(resolveConstraints): 376 ms
- Meteor(prepareProjectForBuild): 1292 ms
- Meteor(Build App): 11219 ms
- Meteor(Server startup): 852 ms
* Total(Meteor): 13739 ms
===============================
Metrics - Rebuild client
===============================
- Meteor(resolveConstraints): 285 ms
- Meteor(prepareProjectForBuild): 624 ms
- Meteor(Build App): 8632 ms
- Meteor(Server startup): 815 ms
- Meteor(prepareProjectForBuild #1): 39 ms
- Meteor(Rebuild App #1): 1128 ms
- Meteor(prepareProjectForBuild #2): 42 ms
- Meteor(Rebuild App #2): 874 ms
* Total(Meteor): 12439 ms
===============================
Metrics - Rebuild server
===============================
- Meteor(resolveConstraints): 371 ms
- Meteor(prepareProjectForBuild): 1151 ms
- Meteor(Build App): 9272 ms
- Meteor(Server startup): 1154 ms
- Meteor(prepareProjectForBuild #1): 32 ms
- Meteor(Rebuild App #1): 1505 ms
- Meteor(Server startup #1): 826 ms
- Meteor(prepareProjectForBuild #2): 29 ms
- Meteor(Rebuild App #2): 1298 ms
- Meteor(Server startup #2): 805 ms
* Total(Meteor): 16443 ms
=============================== -
Npm packages
===============================
\
📦️ Dependencies
┌─────────┬───────────────────────────┬──────────────────────────────┬──────────────────────────────┬───────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼───────────────────────────┼──────────────────────────────┼──────────────────────────────┼───────────────────────┤
│ 0 │ '@babel/runtime@^7.26.10' │ 'autoprefixer@^8.6.3' │ 'cidr-tools@^11.0.3' │ 'clamscan@^2.1.2' │
│ 1 │ 'console-stamp@^3.1.2' │ 'core-js@^2.5.3' │ 'crossfilter2@^1.4.7' │ 'crypto-js@^4.1.1' │
│ 2 │ 'd3@^6.7.0' │ 'dc@^3.1.5' │ 'faker@^4.1.0' │ 'file-saver@^1.3.8' │
│ 3 │ 'intl@^1.2.5' │ 'jquery@^3.4.1' │ 'js-yaml@^3.13.1' │ 'js2xmlparser@^4.0.0' │
│ 4 │ 'kafka-node@^5.0.0' │ 'meteor-accounts-t9n@^2.5.2' │ 'meteor-node-stubs@^1.2.5' │ 'moment@^2.29.4' │
│ 5 │ 'papaparse@^5.3.1' │ 'postcss@^8.5.3' │ 'postcss-load-config@^6.0.1' │ 'select2@^4.0.3' │
│ 6 │ 'simpl-schema@^1.5.5' │ 'snappy@^6.0.1' │ 'striptags@^3.2.0' │ 'sweetalert2@^11.1.9' │
│ 7 │ 'tippy.js@^6.3.7' │ 'unescape@^1.0.1' │ 'xml2js@^0.6.2' │ 'xss@^0.3.7' │
└─────────┴───────────────────────────┴──────────────────────────────┴──────────────────────────────┴───────────────────────┘
🛠️ DevDependencies
┌─────────┬────────────────────────────────────┬────────────────────────────────────────────┬────────────────────────────────────────┬────────────────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼────────────────────────────────────┼────────────────────────────────────────────┼────────────────────────────────────────┼────────────────────────────────┤
│ 0 │ '@babel/eslint-parser@^7.23.10' │ '@babel/preset-react@^7.16.7' │ '@types/meteor@^2.9.8' │ '@types/react@^18.2.65' │
│ 1 │ '@types/react-router-dom@^5.3.3' │ '@typescript-eslint/eslint-plugin@^5.62.0' │ '@typescript-eslint/parser@^5.62.0' │ 'chai@^5.2.0' │
│ 2 │ 'eslint@^8.57.0' │ 'eslint-config-prettier@^9.1.0' │ 'eslint-import-resolver-meteor@^0.4.0' │ 'eslint-plugin-import@^2.29.1' │
│ 3 │ 'eslint-plugin-jsx-a11y@^6.8.0' │ 'eslint-plugin-meteor@^7.3.0' │ 'eslint-plugin-promise@^7.1.0' │ 'eslint-plugin-react@^7.33.2' │
│ 4 │ 'eslint-plugin-react-hooks@^4.6.2' │ 'husky@^4.3.8' │ 'prettier@^3.0.3' │ │
└─────────┴────────────────────────────────────┴────────────────────────────────────────────┴────────────────────────────────────────┴────────────────────────────────┘
===============================
===============================
Meteor packages
===============================
☄️ Atmosphere
┌─────────┬─────────────────────────────────────┬─────────────────────────────────────┬────────────────────────────────────────────┬─────────────────────────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼─────────────────────────────────────┼─────────────────────────────────────┼────────────────────────────────────────────┼─────────────────────────────────────────┤
│ 0 │ 'accounts-base@3.1.0' │ 'accounts-oauth@1.4.6' │ 'accounts-password@3.1.0' │ 'aldeed:collection2@4.1.1' │
│ 1 │ 'aldeed:simple-schema@1.13.1' │ 'aldeed:template-extension@0.1.0' │ 'allohouston:sso@3.0.0' │ 'allohouston:general@3.3.0' │
│ 2 │ 'allohouston:login@0.1.0' │ 'allohouston:tools@0.1.0' │ 'allow-deny@2.1.0' │ 'autoupdate@2.0.0' │
│ 3 │ 'babel-compiler@7.11.3' │ 'babel-runtime@1.5.2' │ 'base64@1.0.13' │ 'binary-heap@1.0.12' │
│ 4 │ 'blaze@3.0.2' │ 'blaze-html-templates@3.0.0' │ 'blaze-tools@2.0.0' │ 'boilerplate-generator@2.0.0' │
│ 5 │ 'caching-compiler@2.0.1' │ 'caching-html-compiler@2.0.0' │ 'callback-hook@1.6.0' │ 'check@1.4.4' │
│ 6 │ 'core-runtime@1.0.0' │ 'cultofcoders:grapher@2.0.0-beta.1' │ 'dburles:mongo-collection-instances@1.0.0' │ 'ddp@1.4.2' │
│ 7 │ 'ddp-client@3.1.0' │ 'ddp-common@1.4.4' │ 'ddp-rate-limiter@1.2.2' │ 'ddp-server@3.1.0' │
│ 8 │ 'diff-sequence@1.1.3' │ 'dynamic-import@0.7.4' │ 'ecmascript@0.16.10' │ 'ecmascript-runtime@0.8.3' │
│ 9 │ 'ecmascript-runtime-client@0.12.3' │ 'ecmascript-runtime-server@0.11.1' │ 'ejson@1.1.4' │ 'email@3.1.2' │
│ 10 │ 'es5-shim@4.8.1' │ 'facts-base@1.0.2' │ 'fetch@0.1.6' │ 'fortawesome:fontawesome@4.7.0' │
│ 11 │ 'froala:editor@2.8.5' │ 'froala:editor-reactive@2.8.5' │ 'geojson-utils@1.0.12' │ 'herteby:denormalize@0.7.0-rc.1' │
│ 12 │ 'hot-code-push@1.0.5' │ 'html-tools@2.0.0' │ 'htmljs@2.0.1' │ 'http@1.4.4' │
│ 13 │ 'id-map@1.2.0' │ 'inter-process-messaging@0.1.2' │ 'jquery@3.0.2' │ 'lai:collection-extensions@1.0.0' │
│ 14 │ 'launch-screen@2.0.1' │ 'less@4.1.1' │ 'localstorage@1.2.1' │ 'logging@1.3.6' │
│ 15 │ 'matb33:collection-hooks@2.0.0' │ 'mdg:validated-method@1.3.0' │ 'meteor@2.1.0' │ 'meteor-base@1.5.2' │
│ 16 │ 'meteortesting:browser-tests@1.7.0' │ 'meteortesting:mocha@3.2.0' │ 'meteortesting:mocha-core@8.2.0' │ 'minifier-css@2.0.1' │
│ 17 │ 'minifier-js@3.0.1' │ 'minimongo@2.0.2' │ 'mobile-experience@1.1.2' │ 'mobile-status-bar@1.1.1' │
│ 18 │ 'modern-browsers@0.2.1' │ 'modules@0.20.3' │ 'modules-runtime@0.13.2' │ 'mongo@2.1.1' │
│ 19 │ 'mongo-decimal@0.2.0' │ 'mongo-dev-server@1.1.1' │ 'mongo-id@1.0.9' │ 'montiapm:agent@3.0.0-beta.14' │
│ 20 │ 'montiapm:meteorx@2.3.1' │ 'msavin:sjobs@5.0.0' │ 'npm-mongo@6.10.2' │ 'oauth@3.0.2' │
│ 21 │ 'oauth2@1.3.3' │ 'observe-sequence@2.0.0' │ 'ordered-dict@1.2.0' │ 'ostrio:cookies@2.8.1' │
│ 22 │ 'ostrio:files@3.0.0-beta.6' │ 'ostrio:flow-router-extra@3.12.0' │ 'percolate:migrations@2.0.0' │ 'percolate:momentum@0.7.3' │
│ 23 │ 'promise@1.0.0' │ 'raix:eventemitter@1.0.0' │ 'random@1.2.2' │ 'rate-limit@1.1.2' │
│ 24 │ 'react-fast-refresh@0.2.9' │ 'reactive-dict@1.3.2' │ 'reactive-var@1.0.13' │ 'reload@1.3.2' │
│ 25 │ 'retry@1.1.1' │ 'reywood:publish-composite@1.8.12' │ 'roles@1.0.1' │ 'routepolicy@1.1.2' │
│ 26 │ 'service-configuration@1.3.5' │ 'session@1.2.2' │ 'sha@1.0.10' │ 'shell-server@0.6.1' │
│ 27 │ 'socket-stream-client@0.6.0' │ 'spacebars@2.0.0' │ 'spacebars-compiler@2.0.0' │ 'standard-minifier-css@1.9.3' │
│ 28 │ 'standard-minifier-js@3.0.0' │ 'templating@1.4.4' │ 'templating-compiler@2.0.0' │ 'templating-runtime@2.0.1' │
│ 29 │ 'templating-tools@2.0.0' │ 'tracker@1.3.4' │ 'typescript@5.6.3' │ 'underscore@1.6.4' │
│ 30 │ 'universe:i18n@3.0.1' │ 'url@1.3.5' │ 'useraccounts:core@1.17.2' │ 'useraccounts:flow-routing-extra@1.1.0' │
│ 31 │ 'useraccounts:unstyled@1.14.2' │ 'webapp@2.0.5' │ 'webapp-hashing@1.1.2' │ 'xolvio:cleaner@0.3.0' │
│ 32 │ 'yellowsquare:ys-crossfilter@0.1.0' │ 'ziarno:restrict-mixin@0.0.5' │ 'zodern:meteor-package-versions@0.2.2' │ 'zodern:types@1.0.13' │
└─────────┴─────────────────────────────────────┴─────────────────────────────────────┴────────────────────────────────────────────┴─────────────────────────────────────────┘
@permb and @storyteller: Could you try running the profile with a higher idle timeout, such as with the env METEOR_IDLE_TIMEOUT=360?
The default is 1.5 minutes (METEOR_IDLE_TIMEOUT=90), but it seems possible that some apps, especially during cold starts without a cache, might take longer. Increasing the timeout will help confirm if that’s the case. I’ve suggested a higher value above to rule out other issues, though hopefully it won’t take more than six minutes for you.
In any case, SWC will help significantly. 
The summary will be enough for now. Including the initial (#3) Total: xx ms (Build App) section with the Top leaves would help confirm the most common profile processes. It’s likely they’ll match what we and others typically see, but it’s worth checking in case something different shows up.
In any case, we’ll see the new results once the first 3.3 beta is available with SWC and other optimizations. Thank you for your help!
Your question got me opening up the project I spoke of on here and yes we’re using entrypoints:
"meteor": {
"mainModule": {
"client": "imports/startup/client/index.js",
"server": "imports/startup/server/index.js"
}
},
EDIT: We’re currently on 3.1 but I’ll definitely work on updating our application to the latest version so we can help in the bundle improvements efforts.
1 Like
Whether using Blaze or React, entry points define where your application starts running on both the client and server sides. These are specified in your package.json file under the "meteor" section. You can take a look at our tutorial app to understand it.
This tells Meteor which files to execute first when the application starts:
package.json
"meteor": {
"mainModule": {
"client": "client/main.js",
"server": "server/main.js"
},
},
This is the starting point for all client-side code:
client/main.js
import '../imports/ui/App.js';
Here, you should import UI components and client-specific modules.
This is where server-side code begins execution:
server/main.js
import { Meteor } from 'meteor/meteor';
import { Accounts } from 'meteor/accounts-base';
import { TasksCollection } from '/imports/db/TasksCollection';
import '/imports/api/tasksMethods';
import '/imports/api/tasksPublications';
...
Here, you should import server-specific code like database collections, methods, and publications.
1 Like
@nachocodoner Here is the command and output:
~/Web/Literary-Universe/app git:[develop]
METEOR_IDLE_TIMEOUT=360 meteor profile --settings settings.local.json --port 4200 --exclude-archs web.browser.legacy,web.cordova
=============================== \
Profile script
===============================
- App path: /home/storyteller/Web/Literary-Universe/app
- App port: 4200
- Logs file: /home/storyteller/Web/Literary-Universe/app/logs/1743520020900-app-bundle.log
===============================
===============================
Full log details at /home/storyteller/Web/Literary-Universe/app/logs/1743520020900-app-bundle.log
===============================
* Profiling "Cold start"... |
* Profiling "Cache start"... /
* Profiling "Rebuild client"... |
* Profiling "Rebuild server"... -
=============================== /
Npm packages
===============================
📦️ Dependencies
┌─────────┬────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬────────────────────────────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┼────────────────────────────────────────────┤
│ 0 │ '@apollo/client@3.13.5' │ '@apollo/server@4.11.3' │ '@ariakit/react@0.4.15' │ '@babel/runtime@7.27.0' │
│ 1 │ '@graphql-tools/merge@9.0.24' │ '@graphql-tools/schema@10.0.23' │ '@graphql-tools/utils@10.8.6' │ '@hello-pangea/dnd@18.0.1' │
│ 2 │ '@ladjs/country-language@1.0.3' │ '@literary-universe/styled-icons@0.8.2' │ '@meteorjs/ddp-graceful-shutdown@0.9.2' │ '@stripe/connect-js@3.3.21' │
│ 3 │ '@stripe/react-connect-js@3.3.21' │ '@stripe/react-stripe-js@3.5.1' │ '@stripe/stripe-js@6.1.0' │ '@tiptap/extension-character-count@2.11.7' │
│ 4 │ '@tiptap/extension-focus@2.11.7' │ '@tiptap/extension-font-family@2.11.7' │ '@tiptap/extension-image@2.11.7' │ '@tiptap/extension-link@2.11.7' │
│ 5 │ '@tiptap/extension-placeholder@2.11.7' │ '@tiptap/extension-table@2.11.7' │ '@tiptap/extension-table-cell@2.11.7' │ '@tiptap/extension-table-header@2.11.7' │
│ 6 │ '@tiptap/extension-table-row@2.11.7' │ '@tiptap/extension-text-align@2.11.7' │ '@tiptap/extension-text-style@2.11.7' │ '@tiptap/extension-underline@2.11.7' │
│ 7 │ '@tiptap/pm@2.11.7' │ '@tiptap/react@2.11.7' │ '@tiptap/starter-kit@2.11.7' │ 'bcrypt@5.1.1' │
│ 8 │ 'filestack-adaptive@1.4.0' │ 'filestack-js@3.39.5' │ 'final-form@4.20.10' │ 'final-form-arrays@3.1.0' │
│ 9 │ 'final-form-calculate@1.3.2' │ 'final-form-focus@1.1.2' │ 'graphql@16.10.0' │ 'graphql-depth-limit@1.1.0' │
│ 10 │ 'graphql-scalars@1.24.2' │ 'immutable@5.1.1' │ 'input-otp@1.4.2' │ 'match-sorter@8.0.0' │
│ 11 │ 'message-box@1.0.0' │ 'meteor-node-stubs@1.2.13' │ 'mjml@4.15.3' │ 'polished@4.3.1' │
│ 12 │ 'react@19.1.0' │ 'react-accessible-accordion@5.0.0' │ 'react-dom@19.1.0' │ 'react-final-form@6.5.9' │
│ 13 │ 'react-final-form-arrays@3.1.4' │ 'react-helmet-async@2.0.5' │ 'react-intl@7.1.10' │ 'react-responsive@10.0.1' │
│ 14 │ 'react-router-dom@6.30.0' │ 'regenerator-runtime@0.14.1' │ 'stripe@17.7.0' │ 'strman@2.0.1' │
│ 15 │ 'styled-components@6.1.16' │ 'styled-tools@1.7.2' │ 'validator@13.15.0' │ 'victory@37.3.6' │
│ 16 │ 'xml2js@0.6.2' │ 'xss@1.0.15' │ │ │
└─────────┴────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┴────────────────────────────────────────────┘
🛠️ DevDependencies
┌─────────┬─────────────────────────────────────────────────────────────┬──────────────────────────────────────────────┬─────────────────────────────────────────────────┬───────────────────────────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼─────────────────────────────────────────────────────────────┼──────────────────────────────────────────────┼─────────────────────────────────────────────────┼───────────────────────────────────────────┤
│ 0 │ '@babel/core@7.26.10' │ '@babel/preset-env@7.26.9' │ '@babel/preset-react@7.26.3' │ '@biomejs/biome@1.9.4' │
│ 1 │ '@chromatic-com/storybook@3.2.6' │ '@cypress/code-coverage@3.14.0' │ '@storybook/addon-a11y@^8.6.11' │ '@storybook/addon-designs@^8.2.1' │
│ 2 │ '@storybook/addon-essentials@^8.6.11' │ '@storybook/addon-interactions@^8.6.11' │ '@storybook/addon-links@^8.6.11' │ '@storybook/addon-mdx-gfm@^8.6.11' │
│ 3 │ '@storybook/addon-onboarding@^8.6.11' │ '@storybook/addon-themes@^8.6.11' │ '@storybook/addon-webpack5-compiler-swc@^1.0.6' │ '@storybook/blocks@^8.6.11' │
│ 4 │ '@storybook/react@^8.6.11' │ '@storybook/react-webpack5@^8.6.11' │ '@storybook/test@^8.6.11' │ '@storybook/theming@^8.6.11' │
│ 5 │ '@testing-library/cypress@10.0.3' │ '@types/final-form-focus@1.1.7' │ '@types/meteor-sjobs@4.0.8' │ '@types/mjml@4.7.4' │
│ 6 │ '@types/node@22.13.16' │ '@types/react@19.0.12' │ '@types/react-dom@19.0.4' │ '@types/stripe-v3@3.1.33' │
│ 7 │ '@types/strman@2.0.3' │ '@types/validator@13.12.3' │ '@types/xml2js@0.4.14' │ '@whatwg-node/node-fetch@0.7.17' │
│ 8 │ 'babel-plugin-istanbul@7.0.0' │ 'babel-plugin-jsx-remove-data-test-id@3.0.0' │ 'babel-plugin-macros@3.1.0' │ 'babel-plugin-object-to-json-parse@0.2.3' │
│ 9 │ 'babel-plugin-react-compiler@^19.0.0-beta-e993439-20250328' │ 'babel-plugin-styled-components@2.1.4' │ 'chai@^5.2.0' │ 'cypress@14.2.1' │
│ 10 │ 'storybook@^8.6.11' │ 'storybook-addon-remix-react-router@^3.1.0' │ 'storybook-react-intl@^3.2.3' │ 'typescript@5.8.2' │
│ 11 │ 'webpack@5.98.0' │ │ │ │
└─────────┴─────────────────────────────────────────────────────────────┴──────────────────────────────────────────────┴─────────────────────────────────────────────────┴───────────────────────────────────────────┘
===============================
===============================
Meteor packages
===============================
☄️ Atmosphere
┌─────────┬──────────────────────────────────────────────┬────────────────────────────────────────────────┬───────────────────────────────────────────────┬───────────────────────────────────────┐
│ (index) │ 0 │ 1 │ 2 │ 3 │
├─────────┼──────────────────────────────────────────────┼────────────────────────────────────────────────┼───────────────────────────────────────────────┼───────────────────────────────────────┤
│ 0 │ 'accounts-2fa@3.0.1' │ 'accounts-base@3.1.0' │ 'accounts-facebook@1.3.4' │ 'accounts-google@1.4.1' │
│ 1 │ 'accounts-meteor-developer@1.5.1' │ 'accounts-oauth@1.4.6' │ 'accounts-password@3.1.0' │ 'accounts-twitter@1.5.2' │
│ 2 │ 'aldeed:collection2@4.1.1' │ 'aldeed:schema-deny@4.0.2' │ 'aldeed:schema-index@4.0.0-beta.5' │ 'aldeed:simple-schema@2.0.0' │
│ 3 │ 'allow-deny@2.1.0' │ 'apollo@5.0.1-beta.0' │ 'audit-argument-checks@1.0.8' │ 'autoupdate@2.0.0' │
│ 4 │ 'babel-compiler@7.11.3' │ 'babel-runtime@1.5.2' │ 'base64@1.0.13' │ 'binary-heap@1.0.12' │
│ 5 │ 'boilerplate-generator@2.0.0' │ 'bozhao:link-accounts@3.0.1' │ 'caching-compiler@2.0.1' │ 'callback-hook@1.6.0' │
│ 6 │ 'check@1.4.4' │ 'core-runtime@1.0.0' │ 'ddp@1.4.2' │ 'ddp-client@3.1.0' │
│ 7 │ 'ddp-common@1.4.4' │ 'ddp-rate-limiter@1.2.2' │ 'ddp-server@3.1.0' │ 'dev-error-overlay@0.1.3' │
│ 8 │ 'diff-sequence@1.1.3' │ 'dynamic-import@0.7.4' │ 'ecmascript@0.16.10' │ 'ecmascript-runtime@0.8.3' │
│ 9 │ 'ecmascript-runtime-client@0.12.3' │ 'ecmascript-runtime-server@0.11.1' │ 'ejson@1.1.4' │ 'email@3.1.2' │
│ 10 │ 'es5-shim@4.8.1' │ 'facebook-oauth@1.11.6' │ 'facts-base@1.0.2' │ 'fetch@0.1.6' │
│ 11 │ 'force-ssl@1.1.1' │ 'force-ssl-common@1.1.1' │ 'freedombase:flashnews@1.0.1' │ 'freedombase:forums@0.0.4' │
│ 12 │ 'freedombase:legal-management@2.0.2' │ 'freedombase:payments-checkout@0.0.1' │ 'freedombase:payments-core@0.0.1' │ 'freedombase:payments-platform@0.0.1' │
│ 13 │ 'freedombase:payments-provider-stripe@0.0.1' │ 'freedombase:payments-subscriptions@0.0.1' │ 'geojson-utils@1.0.12' │ 'google-oauth@1.4.5' │
│ 14 │ 'hot-code-push@1.0.5' │ 'hot-module-replacement@0.5.4' │ 'id-map@1.2.0' │ 'inter-process-messaging@0.1.2' │
│ 15 │ 'jam:offline@0.3.2' │ 'jam:pub-sub@0.3.2' │ 'launch-screen@2.0.1' │ 'localstorage@1.2.1' │
│ 16 │ 'logging@1.3.6' │ 'lu-intl@2.15.4' │ 'matb33:collection-hooks@2.0.0' │ 'mdg:seo@3.5.2' │
│ 17 │ 'meteor@2.1.0' │ 'meteor-base@1.5.2' │ 'meteor-developer-oauth@1.3.3' │ 'meteortesting:browser-tests@1.7.0' │
│ 18 │ 'meteortesting:mocha@3.2.0' │ 'meteortesting:mocha-core@8.2.0' │ 'minifier-js@3.0.1' │ 'minimongo@2.0.2' │
│ 19 │ 'mobile-experience@1.1.2' │ 'mobile-status-bar@1.1.1' │ 'modern-browsers@0.2.1' │ 'modules@0.20.3' │
│ 20 │ 'modules-runtime@0.13.2' │ 'modules-runtime-hot@0.14.3' │ 'mongo@2.1.1' │ 'mongo-decimal@0.2.0' │
│ 21 │ 'mongo-dev-server@1.1.1' │ 'mongo-id@1.0.9' │ 'montiapm:agent@3.0.0-beta.14' │ 'montiapm:meteorx@2.3.1' │
│ 22 │ 'msavin:sjobs@5.0.0' │ 'natestrauser:publish-performant-counts@0.2.0' │ 'npm-mongo@6.10.2' │ 'oauth@3.0.2' │
│ 23 │ 'oauth-encryption@1.3.3' │ 'oauth1@1.5.2' │ 'oauth2@1.3.3' │ 'ordered-dict@1.2.0' │
│ 24 │ 'ostrio:spiderable-middleware@2.2.0' │ 'percolate:migrations@2.0.0' │ 'promise@1.0.0' │ 'raix:eventemitter@2.0.0' │
│ 25 │ 'random@1.2.2' │ 'rate-limit@1.1.2' │ 'react-fast-refresh@0.2.9' │ 'react-meteor-accounts@1.0.3' │
│ 26 │ 'react-meteor-data@3.0.3' │ 'react-meteor-state@1.0.0-beta.2' │ 'reactive-dict@1.3.2' │ 'reactive-var@1.0.13' │
│ 27 │ 'reload@1.3.2' │ 'retry@1.1.1' │ 'reywood:publish-composite@1.9.0' │ 'roles@1.0.1' │
│ 28 │ 'routepolicy@1.1.2' │ 'server-render@0.4.2' │ 'service-configuration@1.3.5' │ 'session@1.2.2' │
│ 29 │ 'sha@1.0.10' │ 'shell-server@0.6.1' │ 'socialize:base-model@2.0.0' │ 'socialize:commentable@2.0.0' │
│ 30 │ 'socialize:feed@2.0.0' │ 'socialize:friendships@2.0.0' │ 'socialize:likeable@2.0.0' │ 'socialize:linkable-model@2.0.0' │
│ 31 │ 'socialize:messaging@2.0.0' │ 'socialize:postable@2.0.0' │ 'socialize:requestable@2.0.0' │ 'socialize:server-presence@1.1.0' │
│ 32 │ 'socialize:server-time@1.0.4' │ 'socialize:user-blocking@2.0.0' │ 'socialize:user-model@2.0.0' │ 'socialize:user-presence@2.0.0' │
│ 33 │ 'socialize:user-profile@2.0.0' │ 'socialize:voteable@2.0.0' │ 'socket-stream-client@0.6.0' │ 'standard-minifier-js@3.0.0' │
│ 34 │ 'static-html@1.4.0' │ 'static-html-tools@1.0.0' │ 'storyteller:accounts-betapass@1.0.0-alpha.1' │ 'storyteller:accounts-discord@1.0.1' │
│ 35 │ 'storyteller:accounts-line@1.3.2' │ 'storyteller:accounts-seznam@1.0.0' │ 'storyteller:betapass-oauth@1.0.0-alpha.1' │ 'storyteller:cdn@2.1.4' │
│ 36 │ 'storyteller:discord-oauth@1.0.1' │ 'storyteller:fictionaltime@0.5.0' │ 'storyteller:line-oauth@1.4.1' │ 'storyteller:seznam-oauth@1.0.0' │
│ 37 │ 'storyteller:ssl@0.3.1' │ 'swydo:graphql@2.0.0' │ 'tracker@1.3.4' │ 'twitter-oauth@1.3.4' │
│ 38 │ 'typescript@5.6.3' │ 'underscore@1.6.4' │ 'url@1.3.5' │ 'webapp@2.0.5' │
│ 39 │ 'webapp-hashing@1.1.2' │ 'zodern:meteor-package-versions@0.2.2' │ 'zodern:types@1.0.13' │ │
└─────────┴──────────────────────────────────────────────┴────────────────────────────────────────────────┴───────────────────────────────────────────────┴───────────────────────────────────────┘
===============================
===============================
Meteor version - METEOR@3.2
===============================
Meteor options - --settings settings.local.json --port 4200 --exclude-archs web.browser.legacy,web.cordova
===============================
===============================
Metrics - Cold start
===============================
- Meteor(resolveConstraints): 3510 ms |
- Meteor(prepareProjectForBuild): 12583 ms
- Meteor(Build App): 112697 ms
- Meteor(Server startup): 2988 ms
* Total(Meteor): 131778 ms
===============================
Metrics - Cache start
===============================
- Meteor(resolveConstraints): 625 ms
- Meteor(prepareProjectForBuild): 3066 ms
- Meteor(Build App): 22002 ms
- Meteor(Server startup): 2731 ms
* Total(Meteor): 28424 ms
===============================
Metrics - Rebuild client
===============================
- Meteor(resolveConstraints): 603 ms -
- Meteor(prepareProjectForBuild): 1439 ms
- Meteor(Build App): 26396 ms
- Meteor(Server startup): 2615 ms
- Meteor(prepareProjectForBuild #1): 147 ms
- Meteor(Rebuild App #1): 6674 ms
- Meteor(prepareProjectForBuild #2): 124 ms
- Meteor(Rebuild App #2): 5373 ms
* Total(Meteor): 43371 ms
===============================
Metrics - Rebuild server
===============================
- Meteor(resolveConstraints): 613 ms
- Meteor(prepareProjectForBuild): 1340 ms
- Meteor(Build App): 27491 ms
- Meteor(Server startup): 2593 ms
- Meteor(prepareProjectForBuild #1): 130 ms
- Meteor(Rebuild App #1): 8992 ms
- Meteor(Server startup #1): 2657 ms
- Meteor(prepareProjectForBuild #2): 119 ms
- Meteor(Rebuild App #2): 7011 ms
- Meteor(Server startup #2): 2655 ms
* Total(Meteor): 53601 ms
===============================
Full log details at /home/storyteller/Web/Literary-Universe/app/logs/1743520020900-app-bundle.log
===============================
/
1 Like
@victor, @dokithonon: Could you update your messages above to share the NPM and Atmosphere packages lists from the profile log?
Feel free to send them privately if you prefer. I got this idea from @storyteller’s performance profile, which includes a project heavily reliant on Babel with multiple plugins. That’s a great reference to see how those plugins perform as we implement SWC support. Since SWC replaces Babel, any plugins without equivalents won’t benefit from the switch. A list of dependencies would help us test them in isolation and observe how they perform.
Hello, just sent by private message
1 Like
In my case with the exception of react-compiler and to lesser degree the styled-components babel plugins, the rest I can do without. For Storybook there is either Webpack or Vite, so moving to either of them (preferably Vite) would make my setup easier.
1 Like
Sent profile on Slack DM
Interestingly, when running meteor profile instead of meteor run, the plugin cache for refapp:meteor-typescript does not seem enabled. Is that by design? If so, is there a way to re-enable it to get a profile for when caches ARE available?
Just a suggestion: if you have an app without mainModule set, Meteor generates a single file with all of the eager imports anyway – it’ll be visible in your browser’s devtools. What we did a couple of years back was copy this file verbatim (of course we replaced the reified requires into imports) into client.ts and made it the mainModule. Then you can do the same on the server – it should be easy to find with --inspect-brk.
Maybe there could be a meteor generate-main-module command to do that automatically?
2 Likes
When I run the profiler, one of my files is getting altered to have a console.log('new line') added to the same line as an import which breaks the compile step.
console.log(‘new line’) appears nowhere in my own code, my version control has no uncommitted changes when I start the process and has that change at the end of the process. This only occurs when profiling and not when running normally.
Yes, that’s the part of the process that simulates a rebuild by temporarily adding and then removing a line. I wouldn’t expect it to break compilation as in your case; it’s meant to be a simple addition. Perhaps this is an edge case. What OS are you using? Could you share the file contents with me privately if you’d prefer? Also, try adding a blank line in that file and running it again.
Alternatively, you could create a new “mock” file, import it from your entry point, and set its path in the METEOR_CLIENT_ENTRYPOINT and METEOR_SERVER_ENTRYPOINT env variables. You could also point those vars to an existing file in your code, ensuring it’s client-only for METEOR_CLIENT_ENTRYPOINT and server-only for METEOR_SERVER_ENTRYPOINT. After these changes run the meteor profile again.
The file literally just has import '..import/startup/client' in it. Running now with some new lines in it as I think your right that should fix it. It just broke it because it was becoming import '..import/startup/client'console.log('new line')
It’s already got further than it did on previous attempts so that appears to have done the trick.
1 Like
Thank you for the report. I’ll address this by adding a new line each time before if needed.
Another option could be running touch <entrypoint> to prompt the bundler without modifying the file, not sure if it will work cross-OS, but I will try it. However, the bundler might not detect any change and still use the cache, which is why adding a new line with new content could be necessary.
I was very keen to try this as my build is crazy slow. Very interesting to see that it is sqlite query causing the majority of the issues rather than babel like most people. Is this likely because my queries are poorly optimised? That wouldn’t be surprising, this was the first project I built professionally and certainly would do lots of things differently database wise if I were to start over.
Top leaves:
| sqlite query…63,937 ms (1)
| Babel.compile…32,077 ms (979)
| files.readFile…3,880 ms (18927)
| jsAnalyze.parse…3,825 ms (5548)
| other reifyCompileWithCache…2,950 ms (4465)
| getPrelinkedFiles toStringWithSourceMap…2,225 ms (222)
| other ImportScanner#resolve…1,778 ms (21937)
| files.stat…1,750 ms (32410)
| files.writeFile…1,286 ms (4664)
===============================
Metrics - Cold start
- Meteor(resolveConstraints): 4998 ms
- Meteor(prepareProjectForBuild): 2096 ms
- Meteor(Build App): 127509 ms
- Meteor(Server startup): 2471 ms
- Total(Meteor): 137074 ms
===============================
Metrics - Cache start
- Meteor(resolveConstraints): 1171 ms
- Meteor(prepareProjectForBuild): 1808 ms
- Meteor(Build App): 32348 ms
- Meteor(Server startup): 1889 ms
- Total(Meteor): 37216 ms
===============================
Metrics - Rebuild client
- Meteor(resolveConstraints): 800 ms
- Meteor(prepareProjectForBuild): 749 ms
- Meteor(Build App): 34828 ms
- Meteor(Server startup): 1918 ms
- Meteor(prepareProjectForBuild #1): 43 ms
- Meteor(Rebuild App #1): 2061 ms
- Meteor(prepareProjectForBuild #2): 67 ms
- Meteor(Rebuild App #2): 1665 ms
- Total(Meteor): 42131 ms
===============================
Metrics - Rebuild server
- Meteor(resolveConstraints): 764 ms
- Meteor(prepareProjectForBuild): 794 ms
- Meteor(Build App): 36370 ms
- Meteor(Server startup): 1743 ms
- Meteor(prepareProjectForBuild #1): 45 ms
- Meteor(Rebuild App #1): 2254 ms
- Meteor(Server startup #1): 1590 ms
- Meteor(prepareProjectForBuild #2): 43 ms
- Meteor(Rebuild App #2): 2062 ms
- Meteor(Server startup #2): 1615 ms
- Total(Meteor): 47280 ms
What can one do on Meteor 2.16?
Thanks for the profile!
Meteor uses a SQLite database to track the remote catalog of Atmosphere packages for offline usage. After running a profile with the official release (not a Git checkout as I normally use to work on), I saw that SQLite queries take a huge amount of time. Apparently having your projects running from a Meteor Git checkout this SQLite database is not queried the same way as part of dev mode, and it could make you save even more, you can check out with meteor profile if you try out the approach.
There’s clearly room for improvement for published releases on managing this local database, and your profile, along with others I’ve taken locally, shows that. We’ll work on this for the next 3.3 beta.
For now, everyone can test the SWC delivery in the first 3.3-beta.0. 
Update: Check this profile comparing running from a published release (3.3-beta.0) vs a meteor git check out (release-3.3 branch) with the same changes.
Rebuilds are similar. Builds are slower in published releases due to some SQLite DB queries running distinctly. In Meteor checkout, only prepareProjectForBuild is slower the first time; after that, performance improves. We should look into this.
4 Likes