`deno install` (deno_npm::resolution) is very slow when creating lock file

[ansemb]

Hi,

When using deno install to create (or update) the deno.lock, the deno_npm::resolution step is really slow (e.g. compared to pnpm) for resolving peer dependencies.

Note: I'm on a Mac M1 (Apple M1 Max, 64GB)

I'm trying to add deno into a monorepo at Microsoft with ~3000 packages, but I'm unable to create the deno.lock file, due to the resolution being too slow. I've kept the deno install running continuously for >24 hours without luck.

Smaller repro

I've added a small repository for reproduction.

I'm doing deno install and pnpm install without a lock file.

Note: this is a random sample from a couple of runs so there will be some variance

• repo: https://github.com/ansemb/deno-install-peer-deps

• deno install: 712.49 seconds

• pnpm install: 90,76 seconds

❯ time deno install
//...
________________________________________________________
Executed in  352.56 secs    fish           external
   usr time  607.77 secs    0.08 millis  607.77 secs
   sys time  104.72 secs    2.81 millis  104.72 secs

❯ time pnpm install
//...
________________________________________________________
Executed in   23.16 secs    fish           external
   usr time   12.26 secs    0.09 millis   12.26 secs
   sys time   78.50 secs    3.33 millis   78.49 secs

logs

Adding a sample of the debug for deno install. It keeps going graph resolution for the majority of the time.

deno -L trace install:

DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for @babel/core in @babel/helper-module-transforms@7.26.0_@babel+core@7.26.10 to @babel/core@7.26.10
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for browserslist in update-browserslist-db@1.1.3_browserslist@4.24.4 to browserslist@4.24.4
DEBUG RS - deno_npm::resolution::graph:1395 - Resolved peer dependency for @babel/core in @babel/helper-module-transforms@7.26.0_@babel+core@7.26.10 to @babel/core@7.26.10

---

❯ deno --version
deno 2.2.4 (stable, release, aarch64-apple-darwin)
v8 13.4.114.11-rusty
typescript 5.7.3

[JOTSR]

Same issue on windows 11.

Always stuck at DEBUG RS - deno_npm::resolution::graph:932 - string_decoder@1.1.1 - Resolved safe-buffer@~5.1.0 to safe-buffer@5.1.2 and consuming ~250MB/s (hard kill at ~20GB/32GB in 1min) with "@stdlib/stats".

Direct npm import (no install) doesn't work either.

Regression to any deno 2.x don't solve this.

[ry]

This is still an issue (unfortunately) after #28586 landed

[nathanwhit]

This is actually not related to peer dependencies. This is a pathological case in the way we do caching of npm package info. Will open PR with a fix