Startuptime - 标签 - William https://williamlfang.github.io/tags/startuptime/ Startuptime - 标签 | William Hugo -- gohugo.iozh-CNSat, 03 Oct 2026 00:08:03 +0900 Profiling Neovim startup: lazy-loaded plugins that weren't lazy https://williamlfang.github.io/2026-10-03-nvim-startup-lazy-loading/ Sat, 03 Oct 2026 00:08:03 +0900 william https://williamlfang.github.io/2026-10-03-nvim-startup-lazy-loading/ Profiling Neovim startup: lazy-loaded plugins that weren't lazy

Update 2026-10-17: the next pass looked at big log files, and found an nc mapping that made every n wait timeoutlen (500 ms) in every file. See Profiling Neovim on big logs.

After tmux and zsh, I looked at Neovim. My config has grown to 138 plugins on lazy.nvim and LazyVim. Almost every spec has an event, cmd or keys, so I assumed most of them were lazy. They weren’t: 89 of the 138 plugins loaded at startup.

None of the causes was a slow plugin. They were config mistakes that only show up once you ask lazy.nvim why each plugin loaded. I fixed them in two rounds:

before after
CPU time to first screen, opening a new file ~150 ms ~120 ms
CPU time to first screen, no file (dashboard) 69 ms 50 ms
plugins loaded at startup 89 73
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