[PATCH] D91051: [clangd] Improve clangd-indexer performance

[Aleksandr Platonov via Phabricator via cfe-commits]

ArcsinX added a comment.

Thanks you all for your comments.

I will try to describe my thoughts:

- the more data `SymbolCollector` will collect, the greater the difference (`N` will increase in `this patch improves performance in N times`). E.g. collection call/contain relations will affect `clangd-indexer` performance significantly while `clangd` background indexer will not have such huge affection.
- performance improvement will help to update the index file more often (for remote server scenario). I mean an index file will be up to date every `K` commits instead of every `3 x K` commits (assume constant time difference between commits)
- the behavior with this patch is basically the same as clangd background indexer behavior.

If this patch could not be approved as is, then maybe we could add command line option to switch old/new behavior. What do you think? (Сan't think of a suitable name for this option =))


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91051/new/

https://reviews.llvm.org/D91051