1 files changed, 22 insertions, 0 deletions
diff --git a/src/mongo/db/namespace_string_bm.cpp b/src/mongo/db/namespace_string_bm.cpp
index 0a1f1448841..4a6799e92bb 100644
--- a/src/mongo/db/namespace_string_bm.cpp
+++ b/src/mongo/db/namespace_string_bm.cpp
@@ -97,6 +97,24 @@ void BM_CreateLongNsFromConstexpr(benchmark::State& state) {
     }
 }
 
+void BM_NamespaceStringShortDbName(benchmark::State& state) {
+    const auto dbName = "short"_sd;
+    NamespaceString ns = makeNS(dbName, kMapCollName);
+
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(ns.dbName());
+    }
+}
+
+void BM_NamespaceStringLongDbName(benchmark::State& state) {
+    const std::string dbName(60, 'x');
+    NamespaceString ns = makeNS(dbName, kMapCollName);
+
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(ns.dbName());
+    }
+}
+
 void searchInMap(benchmark::State& state, const NamespaceString& ns) {
     immutable::map<DatabaseName, std::shared_ptr<int>> dbMap;
 
@@ -149,6 +167,10 @@ BENCHMARK(BM_CreateShortNsFromConstexpr);
 
 BENCHMARK(BM_CreateLongNsFromConstexpr);
 
+BENCHMARK(BM_NamespaceStringShortDbName);
+
+BENCHMARK(BM_NamespaceStringLongDbName);
+
 BENCHMARK(BM_NamespaceStringShortDbNameMapLookupExist);
 
 BENCHMARK(BM_NamespaceStringLongDbNameMapLookupExist);