[Bug]: Severe performance degradation when vimtex is compiling

[moetayuko]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

When using bufferline.nvim and compiling tex (particularly large ones) in the background, neovim becomes unresponsive, and its CPU usage spikes to 100%. This issue resolves once the compilation process is complete. I profiled with snacks.profiler, and this function is identified to be the most time-consuming one (it's invoked with an unusually high frequency)

bufferline.nvim/lua/bufferline/buffers.lua

Line 54 in 261a72b

local buf_nums = utils.get_valid_buffers()

The maintainer of vimtex has no clue and suspects it's bufferline.nvim's issue.

What did you expect to happen?

normal cpu usage when vimtex is compiling

Config

https://github.com/LazyVim/LazyVim/blob/d0c366e4d861b848bdc710696d5311dca2c6d540/lua/lazyvim/plugins/ui.lua#L4-L58

Additional Information

...

commit

No response

[moetayuko]

This is due to the diagnostics being too frequent, not a bug of bufferline.nvim

[bgw]

I've experienced similar after saving a file (runs cargo check on save) with rust-analyzer (via rustaceanvim).

[Daydreamer-riri]

Hi @bgw, how did you end up resolving this? I’m running into the same issue. It definitely needs to be addressed, but I’m not sure whether the root cause lies with Neovim, bufferline, or rust-analyzer.

[Daydreamer-riri]

rust-lang/rust-analyzer#20856 (reply in thread)

@moetayuko @akinsho Should this issue be reopened?