Replaced UUID storage from str to array of bytes

src/libs/core/bench/CMakeLists.txt

@@ -2,6 +2,7 @@
 add_executable(bench-core
 	Core.cpp
 	TraceLoggerBench.cpp
+	UUIDBench.cpp
 	)
 
 target_link_libraries(bench-core PRIVATE

src/libs/core/bench/UUIDBench.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2026 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <benchmark/benchmark.h>
+
+#include "core/UUID.hpp"
+
+namespace lms::core::benchs
+{
+    static void BM_UUID_fromString(benchmark::State& state)
+    {
+        for (auto _ : state)
+            benchmark::DoNotOptimize(UUID::fromString("3f51c839-bee2-4e9d-a7b7-0693e45178fc"));
+    }
+
+    static void BM_UUID_fromString_invalid(benchmark::State& state)
+    {
+        for (auto _ : state)
+            benchmark::DoNotOptimize(UUID::fromString("not-a-valid-uuid-string-at-all-xx"));
+    }
+
+    static void BM_UUID_toString(benchmark::State& state)
+    {
+        const UUID uuid{ *UUID::fromString("3f51c839-bee2-4e9d-a7b7-0693e45178fc") };
+        for (auto _ : state)
+            benchmark::DoNotOptimize(uuid.toString());
+    }
+
+    static void BM_UUID_generate(benchmark::State& state)
+    {
+        for (auto _ : state)
+            benchmark::DoNotOptimize(UUID::generate());
+    }
+
+    BENCHMARK(BM_UUID_fromString);
+    BENCHMARK(BM_UUID_fromString_invalid);
+    BENCHMARK(BM_UUID_toString);
+    BENCHMARK(BM_UUID_generate);
+} // namespace lms::core::benchs