[dxvk] Add stat counters for descriptor sets and pools

src/dxvk/dxvk_cmdlist.h

@@ -758,6 +758,7 @@ namespace dxvk {
     void trackDescriptorPool(
       const Rc<DxvkDescriptorPool>&       pool,
       const Rc<DxvkDescriptorManager>&    manager) {
+      pool->updateStats(m_statCounters);
       m_descriptorPools.push_back({ pool, manager });
     }
 

src/dxvk/dxvk_descriptor.cpp

@@ -35,8 +35,9 @@ namespace dxvk {
 
   DxvkDescriptorPool::DxvkDescriptorPool(
           DxvkDevice*               device,
-          DxvkDescriptorManager*    manager)
+          DxvkDescriptorManager*    manager,
-  : m_device(device), m_manager(manager),
+          DxvkContextType           contextType)
+  : m_device(device), m_manager(manager), m_contextType(contextType),
     m_cachedEntry(nullptr, nullptr) {
 
   }
@@ -47,6 +48,13 @@ namespace dxvk {
 
     for (auto pool : m_descriptorPools)
       vk->vkDestroyDescriptorPool(vk->device(), pool, nullptr);
+
+    if (m_contextType == DxvkContextType::Primary) {
+      m_device->addStatCtr(DxvkStatCounter::DescriptorPoolCount,
+        uint64_t(-int64_t(m_descriptorPools.size())));
+      m_device->addStatCtr(DxvkStatCounter::DescriptorSetCount,
+        uint64_t(-int64_t(m_setsAllocated)));
+    }
   }
 
 
@@ -133,6 +141,16 @@ namespace dxvk {
   }
 
 
+  void DxvkDescriptorPool::updateStats(DxvkStatCounters& counters) {
+    if (m_contextType == DxvkContextType::Primary) {
+      counters.addCtr(DxvkStatCounter::DescriptorSetCount,
+        uint64_t(int64_t(m_setsAllocated) - int64_t(m_prevSetsAllocated)));
+    }
+
+    m_prevSetsAllocated = m_setsAllocated;
+  }
+
+
   DxvkDescriptorSetMap* DxvkDescriptorPool::getSetMapCached(
     const DxvkBindingLayoutObjects*           layout) {
     if (likely(m_cachedEntry.first == layout))
@@ -181,7 +199,7 @@ namespace dxvk {
 
 
   VkDescriptorSet DxvkDescriptorPool::allocSet(
-          DxvkDescriptorSetList*    list,
+          DxvkDescriptorSetList*              list,
           VkDescriptorSetLayout               layout) {
     VkDescriptorSet set = list->alloc();
 
@@ -239,6 +257,11 @@ namespace dxvk {
 
     for (size_t i = 0; i < m_vkPoolCount; i++)
       vk->vkDestroyDescriptorPool(vk->device(), m_vkPools[i], nullptr);
+
+    if (m_contextType == DxvkContextType::Primary) {
+      m_device->addStatCtr(DxvkStatCounter::DescriptorPoolCount,
+        uint64_t(-int64_t(m_vkPoolCount)));
+    }
   }
 
 
@@ -246,7 +269,7 @@ namespace dxvk {
     Rc<DxvkDescriptorPool> pool = m_pools.retrieveObject();
 
     if (pool == nullptr)
-      pool = new DxvkDescriptorPool(m_device, this);
+      pool = new DxvkDescriptorPool(m_device, this, m_contextType);
 
     return pool;
   }
@@ -295,6 +318,8 @@ namespace dxvk {
     if (vk->vkCreateDescriptorPool(vk->device(), &info, nullptr, &pool) != VK_SUCCESS)
       throw DxvkError("DxvkDescriptorPool: Failed to create descriptor pool");
 
+    if (m_contextType == DxvkContextType::Primary)
+      m_device->addStatCtr(DxvkStatCounter::DescriptorPoolCount, 1);
     return pool;
   }
 
@@ -311,6 +336,9 @@ namespace dxvk {
       }
     }
 
+    if (m_contextType == DxvkContextType::Primary)
+      m_device->addStatCtr(DxvkStatCounter::DescriptorPoolCount, uint64_t(-1ll));
+
     vk->vkDestroyDescriptorPool(vk->device(), pool, nullptr);
   }
 

src/dxvk/dxvk_descriptor.h

@@ -5,6 +5,7 @@
 #include "dxvk_include.h"
 #include "dxvk_pipelayout.h"
 #include "dxvk_recycler.h"
+#include "dxvk_stats.h"
 
 namespace dxvk {
 
@@ -84,7 +85,8 @@ namespace dxvk {
 
     DxvkDescriptorPool(
             DxvkDevice*               device,
-            DxvkDescriptorManager*    manager);
+            DxvkDescriptorManager*    manager,
+            DxvkContextType           contextType);
 
     ~DxvkDescriptorPool();
 
@@ -122,10 +124,17 @@ namespace dxvk {
      */
     void reset();
 
+    /**
+     * \brief Updates stat counters with set count
+     * \param [out] counters Stat counters
+     */
+    void updateStats(DxvkStatCounters& counters);
+
   private:
 
     DxvkDevice*               m_device;
     DxvkDescriptorManager*    m_manager;
+    DxvkContextType           m_contextType;
 
     std::vector<VkDescriptorPool>                                     m_descriptorPools;
     std::unordered_map<VkDescriptorSetLayout, DxvkDescriptorSetList>  m_setLists;
@@ -134,6 +143,9 @@ namespace dxvk {
 
     uint32_t m_setsAllocated  = 0;
     uint32_t m_setsUsed       = 0;
+
+    uint32_t m_prevSetsAllocated = 0;
+
     uint32_t m_lowUsageFrames = 0;
 
     DxvkDescriptorSetMap* getSetMapCached(

src/dxvk/dxvk_stats.h

@@ -26,6 +26,8 @@ namespace dxvk {
     CsSyncCount,              ///< CS thread synchronizations
     CsSyncTicks,              ///< Time spent waiting on CS
     CsChunkCount,             ///< Submitted CS chunks
+    DescriptorPoolCount,      ///< Descriptor pool count
+    DescriptorSetCount,       ///< Descriptor sets allocated
     NumCounters,              ///< Number of counters available
   };