vite-2.7-slow

Vite 2.7.x is much slower than vite 2.6.14. This example repository contains a couple of the dependencies that we use to illustrate the performance difference.

Steps to reproduce

1. npm i
2. npm run dev -- --force

Use --force to always start without the cache

To switch to vite 2.6.14 for comparison, run:

npm i -D vite@2.6.14

Results in seconds on Windows 10

2.6.14: 12, 7, 7, 6, 6
2.7.1: 46, 47, 46, 47, 48

2.7 is about 6.2 times slower.

Results on Ubuntu 20.04 in WSL2

2.6.14: 3, 4, 4, 4, 4
2.7.1: 7, 7, 8, 8, 6

2.7 is about 1.9 times slower.

Times rounded to nearest second.