Super slow tsserver feedback (compared to VSCode)

[baptisteArno]

Anyone else notices this on big TypeScript project.

It's barely useable to be honest.

For example, I see a type issue, I change it and have to wait for more than 5 seconds to have visual feedback on the editor.

When I compare to VSCode, it's much much faster. But why? They both use tsserver, right?

I'd love to help debug this but I'm not sure how to proceed.

[Moshyfawn]

I'm not sure about the solution to your performance problem, but there was a recent discussion in #8821 about spawning separate ts servers to try and negate the problem in larger codebases.

[JosephTLyons]

@baptisteArno - I realize this is an older issue, but we are looking to improve things here, but we are struggling to find ways to faithfully reproduce the performance issues here. Do you have any projects that consistently had performance issues that you could share?

cc: @osiewicz

[baptisteArno]

Yes, my project is open-source :)

https://github.com/baptisteArno/typebot.io

Let me know if you don't manage to reproduce the slowliness. In my experience, it is OK when opening the project but at some point it was super slow.

[stenolmre]

For me it has happened for larger monorepos, for example using turborepo and nextjs. Without monorepo everything has been working great, even with larger codespaces. Also I would like to point out that when opening the editor, everything is fine but after couple of changes in files, it starts to lag and sometimes closing and opening file will fix it, but not always.

Sorry, I cannot provide any repository since all of them are private.

[JosephTLyons]

We are shipping VTSLS as the default language server in Zed. I'm curious to hear if anyone here has a better experience using this language server on the same or similar projects as before:

• https://zed.dev/releases/stable/0.141.2

[stenolmre]

It seems like the issue is resolved, at least for me. Over the last couple of days I haven't noticed it anymore, after the release. Thanks for the update 👍

[SebastianCCC]

[baptisteArno]

#18698

[SebastianCCC]

Thanks 👍