[PATCH] D106796: [clangd] Record remote index usage

[Kadir Cetinkaya via Phabricator via cfe-commits]

kadircet created this revision.
kadircet added a reviewer: sammccall.
Herald added subscribers: usaxena95, arphaman.
kadircet requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
Herald added a project: clang-tools-extra.

This is a gauage metric that sets particular remote-index instances as
used. It should enable accumulation of multiple streams to see number of clangd
processes making use of remote index, broken down by remote index address.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106796

Files:
  clang-tools-extra/clangd/tool/ClangdMain.cpp


Index: clang-tools-extra/clangd/tool/ClangdMain.cpp
===================================================================
--- clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -561,10 +561,13 @@
 std::unique_ptr<SymbolIndex>
 loadExternalIndex(const Config::ExternalIndexSpec &External,
                   AsyncTaskRunner *Tasks) {
+  static const trace::Metric RemoteIndexUsed("used_remote_index",
+                                             trace::Metric::Value, "address");
   switch (External.Kind) {
   case Config::ExternalIndexSpec::None:
     break;
   case Config::ExternalIndexSpec::Server:
+    RemoteIndexUsed.record(1, External.Location);
     log("Associating {0} with remote index at {1}.", External.MountPoint,
         External.Location);
     return remote::getClient(External.Location, External.MountPoint);


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