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Add automatic periodic Vulkan Pipeline State Cache serialization

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This commit is contained in:
Wojtek Figat
2025-08-12 10:25:02 +02:00
parent b4d501cd6a
commit cdff7708fb
3 changed files with 58 additions and 15 deletions
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62
Source/Engine/GraphicsDevice/Vulkan/GPUDeviceVulkan.cpp
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@@ -36,6 +36,7 @@
#include "Engine/Profiler/ProfilerCPU.h"
#include "Engine/Profiler/ProfilerMemory.h"
#include "Engine/Threading/Threading.h"
#include "Engine/Threading/ThreadPoolTask.h"
#include "Engine/Scripting/Enums.h"
#if !USE_EDITOR && (PLATFORM_WINDOWS || PLATFORM_LINUX)
@@ -1540,29 +1541,50 @@ bool VulkanPlatformBase::SaveCache(const String& folder, const Char* filename, c
#define CACHE_FOLDER Globals::ProductLocalFolder
#endif
bool GPUDeviceVulkan::SavePipelineCache()
#if VULKAN_USE_PIPELINE_CACHE
bool SavePipelineCacheAsync()
{
PROFILE_CPU();
((GPUDeviceVulkan*)GPUDevice::Instance)->SavePipelineCache(false, true);
return false;
}
#endif
bool GPUDeviceVulkan::SavePipelineCache(bool async, bool cached)
{
#if VULKAN_USE_PIPELINE_CACHE
if (PipelineCache == VK_NULL_HANDLE || !vkGetPipelineCacheData)
if (PipelineCache == VK_NULL_HANDLE || !vkGetPipelineCacheData || PipelineCacheUsage == 0)
return false;
PROFILE_CPU();
PROFILE_MEM(Graphics);
// Query data size
size_t dataSize = 0;
VkResult result = vkGetPipelineCacheData(Device, PipelineCache, &dataSize, nullptr);
LOG_VULKAN_RESULT_WITH_RETURN(result);
if (dataSize <= 0)
return false;
if (!cached)
{
// Query data size
size_t dataSize = 0;
VkResult result = vkGetPipelineCacheData(Device, PipelineCache, &dataSize, nullptr);
LOG_VULKAN_RESULT_WITH_RETURN(result);
if (dataSize <= 0)
return false;
// Query data
Array<byte> data;
data.Resize((int32)dataSize);
result = vkGetPipelineCacheData(Device, PipelineCache, &dataSize, data.Get());
LOG_VULKAN_RESULT_WITH_RETURN(result);
// Query data
PipelineCacheSaveData.Resize((int32)dataSize);
result = vkGetPipelineCacheData(Device, PipelineCache, &dataSize, PipelineCacheSaveData.Get());
LOG_VULKAN_RESULT_WITH_RETURN(result);
}
if (async)
{
// Kick off the async job that will save the cached bytes
Function<bool()> action(SavePipelineCacheAsync);
return Task::StartNew(action) != nullptr;
}
// Reset usage counter
PipelineCacheUsage = 0;
// Save data
return VulkanPlatform::SaveCache(CACHE_FOLDER, TEXT("VulkanPipeline.cache"), data);
return VulkanPlatform::SaveCache(CACHE_FOLDER, TEXT("VulkanPipeline.cache"), PipelineCacheSaveData);
#else
return false;
#endif
@@ -2014,6 +2036,7 @@ bool GPUDeviceVulkan::Init()
pipelineCacheCreateInfo.pInitialData = data.Count() > 0 ? data.Get() : nullptr;
const VkResult result = vkCreatePipelineCache(Device, &pipelineCacheCreateInfo, nullptr, &PipelineCache);
LOG_VULKAN_RESULT(result);
PipelineCacheSaveTime = Platform::GetTimeSeconds();
}
#endif
#if VULKAN_USE_VALIDATION_CACHE
@@ -2067,6 +2090,17 @@ void GPUDeviceVulkan::DrawBegin()
DeferredDeletionQueue.ReleaseResources();
StagingManager.ProcessPendingFree();
DescriptorPoolsManager->GC();
#if VULKAN_USE_PIPELINE_CACHE
// Serialize pipeline cache periodically for less PSO hitches on next app run
const double time = Platform::GetTimeSeconds();
const double saveTimeFrequency = Engine::FrameCount < 60 * Math::Clamp(Engine::GetFramesPerSecond(), 30, 60) ? 10 : 180; // More frequent saves during the first 1min of gameplay
if (Engine::HasFocus && time - PipelineCacheSaveTime >= saveTimeFrequency)
{
SavePipelineCache(true);
PipelineCacheSaveTime = time;
}
#endif
}
void GPUDeviceVulkan::Dispose()