/wds-performance-regression-repro

Short demo for a performance regression in webpack dev server

Primary LanguageJavaScript

Webpack Dev Server performance regression

To test, run

  • npm run server:dev to run the webpack dev server, and
  • npm run build:dev to run a regular build with the exact same config

Example outputs from my system:

  • Server: 5050 ms building
  • Build: 1146 ms building

This difference is MUCH more tangible on larger projects, where we are seeing slowdowns of 30-40x the previous speed.