Key note categories and examples for tech issues

Slow launch speed

This is an example note

I took this note when I needed to improve the launch speed of the desktop app for Inkdrop.

Loading modules is still slow

Loading browser-main.js already takes 210ms..

Browser Main

βœ… Preload packages

loadPackages() requires main scripts, that causes slowing down.

  • Commit:

Pre-loading package can defer running the main script.

πŸ€” some modules are huge

  • lodash/debounce:

  • lodash/isEqual:

    • Sometimes it takes 19ms
  • lodash/assignIn

    • 4ms
  • lodash/cloneDeep

  • lodash/throttle

    • 1.3ms - 4ms
  • lodash/pick

    • 2.5ms - 5ms
  • yaml

    • @inkdropapp/yeason
    • Convert CSON to JSON. Do not use YAML by default.

If I could remove all the loading times, it would make the app 70ms faster to launch.

Maybe Bugsnag can be removed:

  • Bugsnag (13ms)
  • Defer loading bugsnag
    • It is required in many files
  • rimraf takes 10ms (required by @craftzdog/fs-plus)

βœ… note-list-item-summary-view requires remark!

oh #x-small

  • note-revision-view

βœ… Modules are not code-splitted

Changed module in tsconfig.json like so:

  "compilerOptions": {
    "module": "esnext" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,

ok, it works

Improve the main process loading speed

electron --inspect-brk=5858 your/app

The migration util should defer loading remark until necessary

Screenshot 2023-07-06 at 22.22.53

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