Speed difference of Linux and MacOS executors when running PNPM

[mbilenko-florio]

I'm wondering what can be cause of download speed difference between Linux and MacOS exectutors on CircleCI:

Given: monorepo with 3480 packages, ~2GB size.
Command: pnpm install --frozen-lockfile
No cache
.npmrc:
network-concurrency= 16 maxsockets=3

Linux setup:
Docker / Large
Time: 20-35seconds

Mac setup:
MacOS / M1 Medium
Time: 2.5-15minutes

What can be the cause of this difference?

[mbilenko-florio]

On same machines, same monorepository, yarn install times were 2 minutes for Linux, 6 minutes for MacOS.
It looks MacOS has bit slower IO, but still difference is not so vivid.