Update queue priority to 0.5f

gavrix32 · gavrix32 · commit e93610302e0b · 2025-11-03T20:54:49.000+03:00
diff --git a/attachments/04_logical_device.cpp b/attachments/04_logical_device.cpp
@@ -207,7 +207,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = graphicsIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/05_window_surface.cpp b/attachments/05_window_surface.cpp
@@ -222,7 +222,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/06_swap_chain_creation.cpp b/attachments/06_swap_chain_creation.cpp
@@ -230,7 +230,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/07_image_views.cpp b/attachments/07_image_views.cpp
@@ -231,7 +231,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/08_graphics_pipeline.cpp b/attachments/08_graphics_pipeline.cpp
@@ -232,7 +232,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/09_shader_modules.cpp b/attachments/09_shader_modules.cpp
@@ -242,7 +242,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/10_fixed_functions.cpp b/attachments/10_fixed_functions.cpp
@@ -244,7 +244,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/12_graphics_pipeline_complete.cpp b/attachments/12_graphics_pipeline_complete.cpp
@@ -245,7 +245,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/14_command_buffers.cpp b/attachments/14_command_buffers.cpp
@@ -249,7 +249,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/15_hello_triangle.cpp b/attachments/15_hello_triangle.cpp
@@ -258,7 +258,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/16_frames_in_flight.cpp b/attachments/16_frames_in_flight.cpp
@@ -263,7 +263,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/17_swap_chain_recreation.cpp b/attachments/17_swap_chain_recreation.cpp
@@ -291,7 +291,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/18_vertex_input.cpp b/attachments/18_vertex_input.cpp
@@ -307,7 +307,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/19_vertex_buffer.cpp b/attachments/19_vertex_buffer.cpp
@@ -311,7 +311,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/20_staging_buffer.cpp b/attachments/20_staging_buffer.cpp
@@ -311,7 +311,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/21_index_buffer.cpp b/attachments/21_index_buffer.cpp
@@ -319,7 +319,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/22_descriptor_layout.cpp b/attachments/22_descriptor_layout.cpp
@@ -336,7 +336,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/23_descriptor_sets.cpp b/attachments/23_descriptor_sets.cpp
@@ -341,7 +341,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/24_texture_image.cpp b/attachments/24_texture_image.cpp
@@ -348,7 +348,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/25_sampler.cpp b/attachments/25_sampler.cpp
@@ -351,7 +351,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/26_texture_mapping.cpp b/attachments/26_texture_mapping.cpp
@@ -353,7 +353,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/27_depth_buffering.cpp b/attachments/27_depth_buffering.cpp
@@ -366,7 +366,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/28_model_loading.cpp b/attachments/28_model_loading.cpp
@@ -369,7 +369,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/29_mipmapping.cpp b/attachments/29_mipmapping.cpp
@@ -369,7 +369,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/30_multisampling.cpp b/attachments/30_multisampling.cpp
@@ -378,7 +378,7 @@ class HelloTriangleApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/31_compute_shader.cpp b/attachments/31_compute_shader.cpp
@@ -356,7 +356,7 @@ class ComputeShaderApplication {
         };
 
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{ .pNext = &featureChain.get<vk::PhysicalDeviceFeatures2>(),
                                                     .queueCreateInfoCount = 1,
diff --git a/attachments/32_ecosystem_utilities.cpp b/attachments/32_ecosystem_utilities.cpp
@@ -480,7 +480,7 @@ class HelloTriangleApplication {
         features.pNext = pNext;
 
         // create a Device
-        float queuePriority = 1.0f;
+        float queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo deviceCreateInfo{
             .pNext = &features,
diff --git a/attachments/33_vulkan_profiles.cpp b/attachments/33_vulkan_profiles.cpp
@@ -419,7 +419,7 @@ class HelloTriangleApplication {
             throw std::runtime_error("Could not find a queue for graphics and present -> terminating");
         }
 
-        float queuePriority = 1.0f;
+        float queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
 
         if (appInfo.profileSupported) {
diff --git a/attachments/34_android.cpp b/attachments/34_android.cpp
@@ -540,7 +540,7 @@ class HelloTriangleApplication {
             throw std::runtime_error("Could not find a queue for graphics and present -> terminating");
         }
 
-        float queuePriority = 1.0f;
+        float queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{ .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
 
         if (appInfo.profileSupported) {
diff --git a/attachments/35_gltf_ktx.cpp b/attachments/35_gltf_ktx.cpp
@@ -548,7 +548,7 @@ class VulkanApplication {
         vulkan13Features.pNext = &extendedDynamicStateFeatures;
         features.pNext = &vulkan13Features;
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo { .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{
             .pNext =  &features,
diff --git a/attachments/36_multiple_objects.cpp b/attachments/36_multiple_objects.cpp
@@ -612,7 +612,7 @@ class VulkanApplication {
         vulkan13Features.pNext = &extendedDynamicStateFeatures;
         features.pNext = &vulkan13Features;
         // create a Device
-        float                     queuePriority = 1.0f;
+        float                     queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo { .queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
         vk::DeviceCreateInfo      deviceCreateInfo{
             .pNext =  &features,
diff --git a/attachments/37_multithreading.cpp b/attachments/37_multithreading.cpp
@@ -597,7 +597,7 @@ class MultithreadedApplication {
         vulkan13Features.pNext = &extendedDynamicStateFeatures;
         features.pNext = &vulkan13Features;
 
-        float queuePriority = 1.0f;
+        float queuePriority = 0.5f;
         vk::DeviceQueueCreateInfo deviceQueueCreateInfo{.queueFamilyIndex = queueIndex, .queueCount = 1, .pQueuePriorities = &queuePriority};
         vk::DeviceCreateInfo deviceCreateInfo{
             .pNext = &features,
diff --git a/en/03_Drawing_a_triangle/00_Setup/04_Logical_device_and_queues.adoc b/en/03_Drawing_a_triangle/00_Setup/04_Logical_device_and_queues.adoc
@@ -59,7 +59,7 @@ This is required even if there is only a single queue:
 
 [,c++]
 ----
-float queuePriority = 1.0f;
+float queuePriority = 0.5f;
 vk::DeviceQueueCreateInfo deviceQueueCreateInfo { .queueFamilyIndex = graphicsIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
 ----
 
diff --git a/en/03_Drawing_a_triangle/01_Presentation/00_Window_surface.adoc b/en/03_Drawing_a_triangle/01_Presentation/00_Window_surface.adoc
@@ -267,7 +267,7 @@ void createLogicalDevice() {
     vulkan13Features.pNext = &extendedDynamicStateFeatures;
     features.pNext = &vulkan13Features;
     // create a Device
-    float                     queuePriority = 1.0f;
+    float                     queuePriority = 0.5f;
     vk::DeviceQueueCreateInfo deviceQueueCreateInfo { .queueFamilyIndex = graphicsIndex, .queueCount = 1, .pQueuePriorities = &queuePriority };
     vk::DeviceCreateInfo      deviceCreateInfo{ .pNext =  &features, .queueCreateInfoCount = 1, .pQueueCreateInfos = &deviceQueueCreateInfo };
     deviceCreateInfo.enabledExtensionCount = deviceExtensions.size();
diff --git a/en/03_Drawing_a_triangle/01_Presentation/01_Swap_chain.adoc b/en/03_Drawing_a_triangle/01_Presentation/01_Swap_chain.adoc
@@ -64,7 +64,7 @@ Alternatively, we can do this at the construction and keep this very succinct:
 [,c++]
 ----
 std::vector deviceExtensions = { vk::KHRSwapchainExtensionName };
-float                     queuePriority = 1.0f;
+float                     queuePriority = 0.5f;
 vk::DeviceQueueCreateInfo deviceQueueCreateInfo( {}, graphicsIndex, 1, &queuePriority );
 vk::DeviceCreateInfo      deviceCreateInfo( {}, deviceQueueCreateInfo, {}, deviceExtensions );
 ----
