Build uses 5% of CPU, takes 30s

[ysageev]

Hi,

I also asked this question on the esbuild threads (evanw/esbuild#2454 (comment)). Apologies if this is bad etiquette.

I'm using Vite.js 3.0 for my React SPA of ~2000 transformed modules. The project itself has ~490 files. I am using @vitejs/plugin-react.

My vite.config.ts is simply:

import { defineConfig } from "vite"
import react from "@vitejs/plugin-react"
import path from "path"

export default defineConfig({
   plugins: [react()],
   build: {
      outDir: "build",
      target: "esnext",
      rollupOptions: {
         maxParallelFileOps: 100,
         treeshake: false,
      },
   },
   resolve: {
      alias: [
         {
            find: "components",
            replacement: path.resolve(__dirname, "src/components"),
         },
      ],
   },
})

When I build the project, CPU utilization rarely goes above 5% during the transform phase, and the project takes about 30s to build.

My machine is a Ryzen 9 3950x (16 cores), and it doesn't seem that esbuild is using more than one core.

My question is, what can I do to improve build speeds. I am certainly not getting anything close to what the esbuild benchmarks show.

[zz541843]

same question, now do you have a solution?
#11404

[wesleymatosinfluencer]

Same issue here. M4 Max but it takes ~4 minutes to build packages on a monorepo

[ysageev]

Just FYI, I have been using Vite 8 Beta (which uses rolldown) in production without any issues. It is insanely fast (20x). I didn't find it difficult to switch to it. This particular issue will probably not be addressed because the upcoming Vite 8 already addresses it. I am therefore closing the discussion.

[wesleymatosinfluencer]

Is there a replacement to bundle all d.ts into one for vite-rolldown or for vite 8 beta?

I'm using https://www.npmjs.com/package/vite-plugin-dts but I couldn't found a replacement for rolldown to migrate to it.

[ysageev]

You should open up a new thread for that question. 🤷