[core/ threads] Initial refactor for Multithreading

src/video_core/fence_manager.h

@@ -195,6 +195,7 @@ private:
     void ReleaseThreadFunc(std::stop_token stop_token) {
         Common::SetCurrentThreadName("GPUFencingThread");
         Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+        Common::SetCurrentThreadToPerformanceCores();
 
         TFence current_fence;
         std::deque<std::function<void()>> current_operations;

src/video_core/gpu_thread.cpp

@@ -30,6 +30,7 @@ void ThreadManager::StartThread(VideoCore::RendererBase& renderer, Core::Fronten
     thread = std::jthread([&](std::stop_token stop_token) {
         Common::SetCurrentThreadName("GPU");
         Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
+        Common::SetCurrentThreadToPerformanceCores();
         system.RegisterHostThread();
 
         auto current_context = context.Acquire();

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -305,7 +305,7 @@ size_t GetTotalPipelineWorkers() {
         std::max<size_t>(static_cast<size_t>(std::thread::hardware_concurrency()), 2ULL) - 1ULL;
 #ifdef __ANDROID__
     const int configured = AndroidSettings::values.pipeline_worker_count.GetValue();
-    const int clamped = std::clamp(configured, 4, 8);
+    const int clamped = std::clamp(configured, 2, 8);
     const size_t desired = static_cast<size_t>(clamped);
     if (desired == 0) {
         return 1ULL;
@@ -351,8 +351,9 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
       use_asynchronous_shaders{Settings::values.use_asynchronous_shaders.GetValue()},
       use_vulkan_pipeline_cache{Settings::values.use_vulkan_driver_pipeline_cache.GetValue()},
       workers(device.HasBrokenParallelShaderCompiling() ? 1ULL : GetTotalPipelineWorkers(),
-              "VkPipelineBuilder"),
-      serialization_thread(1, "VkPipelineSerialization") {
+              "VkPipelineBuilder", {}, Common::ThreadPlacement::Background),
+      serialization_thread(1, "VkPipelineSerialization", {},
+                           Common::ThreadPlacement::Background) {
     const auto& float_control{device.FloatControlProperties()};
     const VkDriverId driver_id{device.GetDriverID()};
     const VkShaderStageFlags subgroup_stages{device.GetSubgroupSupportedStages()};

src/video_core/renderer_vulkan/vk_present_manager.cpp

@@ -266,6 +266,8 @@ void PresentManager::WaitPresent() {
 
 void PresentManager::PresentThread(std::stop_token token) {
     Common::SetCurrentThreadName("VulkanPresent");
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+    Common::SetCurrentThreadToPerformanceCores();
     while (!token.stop_requested()) {
         std::unique_lock lock{queue_mutex};
         // Wait for presentation frames

src/video_core/renderer_vulkan/vk_scheduler.cpp

@@ -258,6 +258,8 @@ bool Scheduler::UpdateDescriptorBufferChunk(u32 descriptor_chunk) {
 
 void Scheduler::WorkerThread(std::stop_token stop_token) {
     Common::SetCurrentThreadName("VulkanWorker");
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::VeryHigh);
+    Common::SetCurrentThreadToPerformanceCores();
 
     const auto TryPopQueue{[this](auto& work) -> bool {
         if (work_queue.empty()) {

src/video_core/texture_cache/texture_cache_base.h

@@ -509,7 +509,8 @@ private:
     u64 frame_tick = 0;
     u64 last_sampler_gc_frame = (std::numeric_limits<u64>::max)();
 
-    Common::ThreadWorker texture_decode_worker{1, "TextureDecoder"};
+    Common::ThreadWorker texture_decode_worker{1, "TextureDecoder", {},
+                                               Common::ThreadPlacement::Efficiency};
     std::vector<std::unique_ptr<AsyncDecodeContext>> async_decodes;
 
     std::deque<PendingUnswizzle> unswizzle_queue;

src/video_core/textures/workers.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
@@ -10,7 +10,8 @@ namespace Tegra::Texture {
 
 Common::ThreadWorker& GetThreadWorkers() {
     static Common::ThreadWorker workers{(std::max)(std::thread::hardware_concurrency(), 2U) / 2,
-                                        "ImageTranscode"};
+                                        "ImageTranscode", {},
+                                        Common::ThreadPlacement::Efficiency};
 
     return workers;
 }