[PATCH] D39843: [clangd] Use in-memory preambles in clangd.

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov added a comment.

In https://reviews.llvm.org/D39843#920568, @sammccall wrote:

> As a very first step, can we make this configurable but off-by-default? That will address the pressing diskless-servers need.


I think on-disk by default makes sense now until we do the measurements and have a the data to prove the on-memory is really better.


https://reviews.llvm.org/D39843