renderer_vulkan: Prefer immediate over mailbox present mode

src/video_core/renderer_vulkan/vk_swapchain.cpp

@@ -4,6 +4,7 @@
 
 #include <algorithm>
 #include "common/logging/log.h"
+#include "common/microprofile.h"
 #include "core/settings.h"
 #include "video_core/renderer_vulkan/vk_instance.h"
 #include "video_core/renderer_vulkan/vk_renderpass_cache.h"
@@ -112,11 +113,13 @@ void Swapchain::Create(u32 width, u32 height) {
 // Wait for maximum of 1 second
 constexpr u64 ACQUIRE_TIMEOUT = 1000000000;
 
+MICROPROFILE_DEFINE(Vulkan_Acquire, "Vulkan", "Swapchain Acquire", MP_RGB(185, 66, 245));
 void Swapchain::AcquireNextImage(vk::Semaphore signal_acquired) {
     if (NeedsRecreation()) [[unlikely]] {
         return;
     }
 
+    MICROPROFILE_SCOPE(Vulkan_Acquire);
     vk::Device device = instance.GetDevice();
     vk::Result result = device.acquireNextImageKHR(swapchain, ACQUIRE_TIMEOUT, signal_acquired,
                                                    VK_NULL_HANDLE, &current_image);
@@ -135,11 +138,13 @@ void Swapchain::AcquireNextImage(vk::Semaphore signal_acquired) {
     }
 }
 
+MICROPROFILE_DEFINE(Vulkan_Present, "Vulkan", "Swapchain Present", MP_RGB(66, 185, 245));
 void Swapchain::Present(vk::Semaphore wait_for_present) {
     if (NeedsRecreation()) [[unlikely]] {
         return;
     }
 
+    MICROPROFILE_SCOPE(Vulkan_Present);
     const vk::PresentInfoKHR present_info = {.waitSemaphoreCount = 1,
                                              .pWaitSemaphores = &wait_for_present,
                                              .swapchainCount = 1,
@@ -185,11 +190,18 @@ void Swapchain::Configure(u32 width, u32 height) {
     // FIFO is guaranteed by the Vulkan standard to be available
     present_mode = vk::PresentModeKHR::eFifo;
     if (!Settings::values.use_vsync_new) {
-        auto iter = std::ranges::find_if(
+        const auto FindMode = [&modes](vk::PresentModeKHR requested) {
-            modes, [](vk::PresentModeKHR mode) { return vk::PresentModeKHR::eMailbox == mode; });
+            auto it =
+                std::find_if(modes.begin(), modes.end(),
+                             [&requested](vk::PresentModeKHR mode) { return mode == requested; });
 
-        // Prefer Mailbox when vsync is disabled for lowest latency
+            return it != modes.end();
-        if (iter != modes.end()) {
+        };
+
+        // Prefer Immediate when vsync is disabled for fastest acquire
+        if (FindMode(vk::PresentModeKHR::eImmediate)) {
+            present_mode = vk::PresentModeKHR::eImmediate;
+        } else if (FindMode(vk::PresentModeKHR::eMailbox)) {
             present_mode = vk::PresentModeKHR::eMailbox;
         }
     }

src/video_core/renderer_vulkan/vk_task_scheduler.cpp

@@ -4,6 +4,7 @@
 
 #include "common/assert.h"
 #include "common/logging/log.h"
+#include "common/microprofile.h"
 #include "video_core/renderer_vulkan/renderer_vulkan.h"
 #include "video_core/renderer_vulkan/vk_instance.h"
 #include "video_core/renderer_vulkan/vk_task_scheduler.h"
@@ -86,12 +87,14 @@ TaskScheduler::~TaskScheduler() {
     device.destroyCommandPool(command_pool);
 }
 
+MICROPROFILE_DEFINE(Vulkan_Synchronize, "Vulkan", "Scheduler Synchronize", MP_RGB(100, 52, 235));
 void TaskScheduler::Synchronize(u32 slot) {
     const auto& command = commands[slot];
     vk::Device device = instance.GetDevice();
 
     const u64 completed_counter = GetFenceCounter();
     if (command.fence_counter > completed_counter) {
+        MICROPROFILE_SCOPE(Vulkan_Synchronize);
         if (instance.IsTimelineSemaphoreSupported()) {
             const vk::SemaphoreWaitInfo wait_info = {
                 .semaphoreCount = 1, .pSemaphores = &timeline, .pValues = &command.fence_counter};
@@ -113,6 +116,7 @@ void TaskScheduler::Synchronize(u32 slot) {
     device.resetDescriptorPool(command.descriptor_pool);
 }
 
+MICROPROFILE_DEFINE(Vulkan_Submit, "Vulkan", "Scheduler Queue Submit", MP_RGB(66, 245, 170));
 void TaskScheduler::Submit(SubmitMode mode) {
     if (False(mode & SubmitMode::Shutdown)) {
         renderer.FlushBuffers();
@@ -134,6 +138,8 @@ void TaskScheduler::Submit(SubmitMode mode) {
     command_buffers[command_buffer_count++] = command.render_command_buffer;
 
     const auto QueueSubmit = [this](const vk::SubmitInfo& info, vk::Fence fence) {
+        MICROPROFILE_SCOPE(Vulkan_Submit);
+
         try {
             vk::Queue queue = instance.GetGraphicsQueue();
             queue.submit(info, fence);