Vulkan on Fuchsia performance tuning (flutter#3822)

* increase Vulkan GrContext resource cache limits to match android * [content handler] tune VulkanSurfaceProducer allocation and recycling heuristics
ashawn · Jun 23, 2017 · 674b8f1 · 674b8f1
1 parent 8a2d337
commit 674b8f1
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Showing 4 changed files with 10 additions and 2 deletions.
diff --git a/content_handler/vulkan_rasterizer.cc b/content_handler/vulkan_rasterizer.cc
@@ -406,6 +406,9 @@ bool VulkanRasterizer::VulkanSurfaceProducer::Initialize() {
       kVulkan_GrBackend,
       reinterpret_cast<GrBackendContext>(backend_context_.get())));
 
+  context_->setResourceCacheLimits(vulkan::kGrCacheMaxCount,
+                                   vulkan::kGrCacheMaxByteSize);
+
   FTL_DLOG(INFO) << "Successfully initialized VulkanRasterizer";
   return true;
 }

diff --git a/content_handler/vulkan_rasterizer.h b/content_handler/vulkan_rasterizer.h
@@ -87,8 +87,8 @@ class VulkanRasterizer : public Rasterizer {
     struct Swapchain {
       std::queue<std::unique_ptr<Surface>> queue;
       uint32_t tick_count = 0;
-      static constexpr uint32_t kMaxSurfaces = 3;
-      static constexpr uint32_t kMaxTickBeforeDiscard = 3;
+      static constexpr uint32_t kMaxSurfaces = 16;
+      static constexpr uint32_t kMaxTickBeforeDiscard = 600;
     };
 
     using size_key_t = uint64_t;

diff --git a/vulkan/vulkan_application.h b/vulkan/vulkan_application.h
@@ -14,6 +14,9 @@
 
 namespace vulkan {
 
+static const int kGrCacheMaxCount = 8192;
+static const size_t kGrCacheMaxByteSize = 512 * (1 << 20);
+
 class VulkanDevice;
 class VulkanProcTable;
 

diff --git a/vulkan/vulkan_window.cc b/vulkan/vulkan_window.cc
@@ -111,6 +111,8 @@ bool VulkanWindow::CreateSkiaGrContext() {
     return false;
   }
 
+  context->setResourceCacheLimits(kGrCacheMaxCount, kGrCacheMaxByteSize);
+
   skia_vk_backend_context_ = backend_context;
   skia_gr_context_ = context;