[android] Pipeline workers asigment slider

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/IntSetting.kt

@@ -67,7 +67,8 @@ enum class IntSetting(override val key: String) : AbstractIntSetting {
     MY_PAGE_APPLET("my_page_applet_mode"),
     INPUT_OVERLAY_AUTO_HIDE("input_overlay_auto_hide"),
     OVERLAY_GRID_SIZE("overlay_grid_size"),
-    GPU_LOG_RING_BUFFER_SIZE("gpu_log_ring_buffer_size")
+    GPU_LOG_RING_BUFFER_SIZE("gpu_log_ring_buffer_size"),
+    ANDROID_PIPELINE_WORKERS("pipeline_worker_count")
     ;
 
     override fun getInt(needsGlobal: Boolean): Int = NativeConfig.getInt(key, needsGlobal)

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -582,6 +582,16 @@ abstract class SettingsItem(
                     units = "%"
                 )
             )
+            put(
+                SliderSetting(
+                    IntSetting.ANDROID_PIPELINE_WORKERS,
+                    titleId = R.string.pipeline_worker_cores,
+                    descriptionId = R.string.pipeline_worker_cores_description,
+                    min = 4,
+                    max = 8,
+                    units = "cores"
+                )
+            )
             put(
                 SingleChoiceSetting(
                     IntSetting.RENDERER_ANTI_ALIASING,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -294,6 +294,7 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.FIX_BLOOM_EFFECTS.key)
             add(BooleanSetting.EMULATE_BGR565.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_SHADERS.key)
+            add(IntSetting.ANDROID_PIPELINE_WORKERS.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_GPU_EMULATION.key)
             add(BooleanSetting.RENDERER_ASYNC_PRESENTATION.key)
             add(SettingsItem.GPU_UNSWIZZLE_COMBINED)

src/android/app/src/main/jni/android_settings.h

@@ -147,6 +147,13 @@ namespace AndroidSettings {
                                                       &show_performance_overlay};
 
 
+        Settings::Setting<s32> pipeline_worker_count{linkage, 4, "pipeline_worker_count",
+                                 Settings::Category::Android,
+                                 Settings::Specialization::Default,
+                                 true,
+                                 true};
+
+
         Settings::Setting<bool> show_input_overlay{linkage, true, "show_input_overlay",
                                                    Settings::Category::Overlay};
         Settings::Setting<bool> overlay_snap_to_grid{linkage, false, "overlay_snap_to_grid",

src/android/app/src/main/res/values/strings.xml

@@ -71,6 +71,8 @@
     <string name="show_power_info_description">Display current power draw and remaining capacity on battery</string>
     <string name="show_shaders_building">Show Shaders Building</string>
     <string name="show_shaders_building_description">Display current number of shaders being built</string>
+    <string name="pipeline_worker_cores">Pipeline Worker Threads</string>
+    <string name="pipeline_worker_cores_description">Manage the amount of cores used for building Vulkan pipelines, the higher value will improve pipeline compilation performance but temperatures will increase as well.</string>
     <string name="overlay_position">Overlay Position</string>
     <string name="overlay_position_description">Choose where the overlay is displayed on the screen</string>
     <string name="overlay_position_top_left">Top Left</string>

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -45,6 +45,10 @@
 #include "video_core/vulkan_common/vulkan_wrapper.h"
 #include "video_core/gpu_logging/gpu_logging.h"
 
+#ifdef ANDROID
+#include "android_settings.h"
+#endif
+
 namespace Vulkan {
 
 namespace {
@@ -325,12 +329,13 @@ size_t GetTotalPipelineWorkers() {
     const size_t max_core_threads =
         std::max<size_t>(static_cast<size_t>(std::thread::hardware_concurrency()), 2ULL) - 1ULL;
 #ifdef ANDROID
-    // Leave at least 3 cores free on Android to avoid stalling the system.
+    const int configured = AndroidSettings::values.pipeline_worker_count.GetValue();
-    constexpr size_t free_cores = 3ULL;
+    const int clamped = std::clamp(configured, 4, 8);
-    if (max_core_threads <= free_cores) {
+    const size_t desired = static_cast<size_t>(clamped);
+    if (desired == 0) {
         return 1ULL;
     }
-    return max_core_threads - free_cores;
+    return std::min(max_core_threads, desired);
 #else
     return max_core_threads;
 #endif