QVAC-6570: Force vulkan perf logging through cmake options

CMakeLists.txt

@@ -90,6 +90,9 @@ option(LLAMA_MTMD "llama: multimodal support" ${LLAMA_BUILD_TOOLS})
 option(LLAMA_CURL       "llama: use libcurl to download model from an URL" ON)
 option(LLAMA_LLGUIDANCE "llama-common: include LLGuidance library for structured output in common utils" OFF)
 
+# profiling
+option(FORCE_GGML_VK_PERF_LOGGER "Force vk performance logging in ggml" OFF)
+
 # Required for relocatable CMake package
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/build-info.cmake)
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/common.cmake)

ggml/src/ggml-vulkan/CMakeLists.txt

@@ -92,6 +92,9 @@ if (Vulkan_FOUND)
     target_include_directories(ggml-vulkan PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
     target_include_directories(ggml-vulkan PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/vulkan_cpp_wrapper/include")
 
+    if (FORCE_GGML_VK_PERF_LOGGER)
+      add_compile_definitions(FORCE_GGML_VK_PERF_LOGGER)
+    endif()
     # Workaround to the "can't dereference invalidated vector iterator" bug in clang-cl debug build
     # Posssibly relevant: https://stackoverflow.com/questions/74748276/visual-studio-no-displays-the-correct-length-of-stdvector
     if (MSVC AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")

ggml/src/ggml-vulkan/ggml-vulkan.cpp

@@ -4486,7 +4486,11 @@ static void ggml_vk_instance_init() {
         vk_instance.pfn_vkCmdInsertDebugUtilsLabelEXT = (PFN_vkCmdInsertDebugUtilsLabelEXT) vkGetInstanceProcAddr(vk_instance.instance, "vkCmdInsertDebugUtilsLabelEXT");
     }
 
+#ifndef FORCE_GGML_VK_PERF_LOGGER
     vk_perf_logger_enabled = getenv("GGML_VK_PERF_LOGGER") != nullptr;
+#else
+    vk_perf_logger_enabled = true;
+#endif
 
     std::vector<vk::PhysicalDevice> devices = vk_instance.instance.enumeratePhysicalDevices();