Timing reporter / instrumentation

[vjpr]

I have a very large monorepo and I would like more insight into how long each stage is taking and why, during pnpm add and pnpm install commands.

Sometimes adding a package is quick, other times it takes much longer, and seems like it scans all the dependencies.

A common thing is seeing it take 1 second per 1000 packages it checks if they are reused.

Progress: resolved 7418, reused 433, downloaded 0, added 0

I am planning to dive in deeper to see if I can improve the speed of my monorepo, and maybe I could create a PR of a timing reporter.

It's been a while since I looked into the install algorithm so not sure exactly what would already be possible by piping --reporter ndjson. With async steps/tasks, usually it can be complicated to add timing.

Inline messages or summary after command completes (similar to https://github.com/stephencookdev/speed-measure-webpack-plugin for Webpack).

Is there existing instrumentation code for different steps/phases/tasks?

How far would --reporter=ndjson get us I wonder?

Related

https://discord.com/channels/731599538665553971/731599538665553975/831221571519512657