1 files changed, 9 insertions, 1 deletions
diff --git a/source/slang/slang-api.cpp b/source/slang/slang-api.cpp
index a3b1e5409..45c583060 100644
--- a/source/slang/slang-api.cpp
+++ b/source/slang/slang-api.cpp
@@ -98,11 +98,19 @@ SLANG_API SlangResult slang_createGlobalSession(
     {
         Slang::String cacheFilename;
         uint64_t dllTimestamp = 0;
+#define SLANG_PROFILE_STDLIB_COMPILE 0
+#if SLANG_PROFILE_STDLIB_COMPILE
+        auto startTime = std::chrono::high_resolution_clock::now();
+#else
         if (tryLoadStdLibFromCache(globalSession, cacheFilename, dllTimestamp) != SLANG_OK)
+#endif
         {
             // Compile std lib from embeded source.
             SLANG_RETURN_ON_FAIL(globalSession->compileStdLib(0));
-
+#if SLANG_PROFILE_STDLIB_COMPILE
+            auto timeElapsed = std::chrono::high_resolution_clock::now() - startTime;
+            printf("stdlib compilation time: %.1fms\n", timeElapsed.count() / 1000000.0);
+#endif
             // Store the compiled stdlib to cache file.
             trySaveStdLibToCache(globalSession, cacheFilename, dllTimestamp);
         }