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Benchmarks of JavaScript Package Managers#

This benchmark compares the performance of npm, pnpm, and Yarn (both regular and PnP variant).

Here's a quick explanation of how these tests could apply to the real world:

  • clean install: How long it takes to run a totally fresh install: no lockfile present, no packages in the cache, no node_modules folder.
  • with cache, with lockfile, with node_modules: After the first install is done, the install command is run again.
  • with cache, with lockfile: When a repo is fetched by a developer and installation is first run.
  • with cache: Same as the one above, but the package manager doesn't have a lockfile to work from.
  • with lockfile: When an installation runs on a CI server.
  • with cache, with node_modules: The lockfile is deleted and the install command is run again.
  • with node_modules, with lockfile: The package cache is deleted and the install command is run again.
  • with node_modules: The package cache and the lockfile is deleted and the install command is run again.
  • update: Updating your dependencies by changing the version in the package.json and running the install command again.

Lots of Files#

The app's package.json here

actioncachelockfilenode_modulesnpmpnpmYarnYarn PnP
install49.8s14.4s39.1s29.1s
install1.5s1.3s707msn/a
install9.1s3.7s11s1.8s
install27.5s6.5s26.5s17.2s
install25.1s11.8s23.3s14.2s
install2.1s1.6s22.1sn/a
install1.5s1.3s713msn/a
install2.1s5.3s41.1sn/a
updaten/an/an/a1.5s10.4s35.4s28.3s

Graph of the alotta-files results