[clangd] Only reduce priority of a thread for indexing.
Summary:
We'll soon have tasks pending for reading shards from disk, we want
them to have normal priority. Because:
- They are not CPU intensive, mostly IO bound.
- Give a good coverage for the project at startup, therefore it is worth
spending some cycles.
- We have only one task per whole CDB rather than one task per file.
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, jfb, cfe-commits
Differential Revision: https://reviews.llvm.org/D55315
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@349345 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed
