[PATCH] D121712: [clangd] Track time spent in filesystem ops during preamble builds

[Adam Czachorowski via Phabricator via cfe-commits]

adamcz created this revision.
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In some deployments, for example when running on FUSE or using some
network-based VFS implementation, the filesystem operations might add up
to a significant fraction of preamble build time. This change allows us
to track time spent in FS operations to better understand the problem.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121712

Files:
  clang-tools-extra/clangd/FS.cpp
  clang-tools-extra/clangd/FS.h
  clang-tools-extra/clangd/Preamble.cpp
  clang-tools-extra/clangd/Preamble.h
  clang-tools-extra/clangd/TUScheduler.cpp
  clang-tools-extra/clangd/tool/Check.cpp
  clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
  clang-tools-extra/clangd/unittests/FileIndexTests.cpp
  clang-tools-extra/clangd/unittests/ParsedASTTests.cpp
  clang-tools-extra/clangd/unittests/PreambleTests.cpp
  clang-tools-extra/clangd/unittests/TestTU.cpp

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