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NodeJS Source Maps Performance Test

This is a minimal example to reproduce the issue --enable-source-maps is unnecessarily slow with large source files in a close to real world scenario.

Prerequisites

  • Node Version v16.13.2 (should also work with any other version that has --enable-source-maps)
  • Yarn

Steps to reproduce

  • Run yarn install
  • Run yarn build
  • Run yarn start-bundle
  • In a new terminal run yarn artillery

Instead of yarn start-bundle there are also yarn start-without-source-maps, yarn start-unbundled and yarn start-bundle-with-source-map-support. Just run artillery against the different versions to see the differences in performance.

Artillery is set to do 20 req/sec for 1 minute. This should show the effect, however for really fast machines the arrivalRate of the load phase in artillery.yaml could be slightly increased.