Added stats to VoxelLodTerrain

terrain/voxel_lod_terrain.cpp

@@ -1,10 +1,10 @@
 #include "voxel_lod_terrain.h"
 #include "../math/rect3i.h"
+#include "../util/profiling_clock.h"
 #include "voxel_map.h"
 #include "voxel_mesh_updater.h"
 #include "voxel_provider_thread.h"
 #include <core/engine.h>
-#include <core/os/os.h>
 
 VoxelLodTerrain::VoxelLodTerrain() {
 
@@ -13,7 +13,7 @@ VoxelLodTerrain::VoxelLodTerrain() {
 	_lods[0].map.instance();
 
 	set_lod_count(8);
-	set_lod_split_scale(3);
+	set_lod_split_scale(4);
 
 	reset_updater();
 }
@@ -382,6 +382,8 @@ void VoxelLodTerrain::_process() {
 	Vector3 viewer_pos = get_viewer_pos();
 	Vector3i viewer_block_pos = _lods[0].map->voxel_to_block(viewer_pos);
 
+	ProfilingClock profiling_clock;
+
 	// Here we go...
 
 	// Find out which blocks _data_ need to be loaded
@@ -466,12 +468,15 @@ void VoxelLodTerrain::_process() {
 		_provider_thread->push(input);
 	}
 
+	_stats.time_request_blocks_to_load = profiling_clock.restart();
+
 	// Get block loading responses
 	// Note: if block loading is too fast, this can cause stutters.
 	// It should only happen on first load, though.
 	{
 		VoxelProviderThread::OutputData output;
 		_provider_thread->pop(output);
+		_stats.provider = output.stats;
 
 		for (int i = 0; i < output.emerged_blocks.size(); ++i) {
 
@@ -541,6 +546,8 @@ void VoxelLodTerrain::_process() {
 		}
 	}
 
+	_stats.time_process_load_responses = profiling_clock.restart();
+
 	// Send mesh updates
 	{
 		VoxelMeshUpdater::Input input;
@@ -587,11 +594,14 @@ void VoxelLodTerrain::_process() {
 		_block_updater->push(input);
 	}
 
+	_stats.time_request_blocks_to_update = profiling_clock.restart();
+
 	// Receive mesh updates
 	{
 		{
 			VoxelMeshUpdater::Output output;
 			_block_updater->pop(output);
+			_stats.updater = output.stats;
 
 			for (unsigned int i = 0; i < output.blocks.size(); ++i) {
 				const VoxelMeshUpdater::OutputBlock &ob = output.blocks[i];
@@ -666,6 +676,8 @@ void VoxelLodTerrain::_process() {
 		shift_up(_blocks_pending_main_thread_update, queue_index);
 	}
 
+	_stats.time_process_update_responses = profiling_clock.restart();
+
 	// Find out which blocks need to be shown
 	{
 		struct SubdivideAction {
@@ -733,6 +745,25 @@ void VoxelLodTerrain::_process() {
 
 		_lod_octree.update(viewer_pos, subdivide_action, unsubdivide_action);
 	}
+
+	_stats.time_process_lod = profiling_clock.restart();
+}
+
+Dictionary VoxelLodTerrain::get_stats() const {
+
+	Dictionary process;
+	process["time_request_blocks_to_load"] = _stats.time_request_blocks_to_load;
+	process["time_process_load_responses"] = _stats.time_process_load_responses;
+	process["time_request_blocks_to_update"] = _stats.time_request_blocks_to_update;
+	process["time_process_update_responses"] = _stats.time_process_update_responses;
+	process["time_process_lod"] = _stats.time_process_lod;
+
+	Dictionary d;
+	d["provider"] = VoxelProviderThread::to_dictionary(_stats.provider);
+	d["updater"] = VoxelMeshUpdater::to_dictionary(_stats.updater);
+	d["process"] = process;
+
+	return d;
 }
 
 void VoxelLodTerrain::_bind_methods() {
@@ -752,6 +783,7 @@ void VoxelLodTerrain::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_block_state", "block_pos", "lod"), &VoxelLodTerrain::get_block_state);
 	ClassDB::bind_method(D_METHOD("is_block_meshed", "block_pos", "lod"), &VoxelLodTerrain::is_block_meshed);
 	ClassDB::bind_method(D_METHOD("is_block_shown", "block_pos", "lod"), &VoxelLodTerrain::is_block_shown);
+	ClassDB::bind_method(D_METHOD("get_stats"), &VoxelLodTerrain::get_stats);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "provider", PROPERTY_HINT_RESOURCE_TYPE, "VoxelProvider"), "set_provider", "get_provider");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "view_distance"), "set_view_distance", "get_view_distance");

terrain/voxel_lod_terrain.h

@@ -5,11 +5,11 @@
 #include "lod_octree.h"
 #include "voxel_map.h"
 #include "voxel_mesh_updater.h"
+#include "voxel_provider_thread.h"
 #include <core/set.h>
 #include <scene/3d/spatial.h>
 
 class VoxelMap;
-class VoxelProviderThread;
 
 // Paged terrain made of voxel blocks of variable level of detail.
 // Designed for highest view distances, preferably using smooth voxels.
@@ -53,6 +53,18 @@ public:
 	bool is_block_meshed(Vector3 bpos, unsigned int lod_index) const;
 	bool is_block_shown(Vector3 bpos, unsigned int lod_index) const;
 
+	struct Stats {
+		VoxelMeshUpdater::Stats updater;
+		VoxelProviderThread::Stats provider;
+		uint64_t time_request_blocks_to_load = 0;
+		uint64_t time_process_load_responses = 0;
+		uint64_t time_request_blocks_to_update = 0;
+		uint64_t time_process_update_responses = 0;
+		uint64_t time_process_lod = 0;
+	};
+
+	Dictionary get_stats() const;
+
 protected:
 	static void _bind_methods();
 
@@ -113,6 +125,8 @@ private:
 	};
 
 	Lod _lods[MAX_LOD];
+
+	Stats _stats;
 };
 
 VARIANT_ENUM_CAST(VoxelLodTerrain::BlockState)

terrain/voxel_mesh_updater.cpp

@@ -307,3 +307,11 @@ void VoxelMeshUpdater::thread_sync(int queue_index, Stats stats) {
 		sorter.sort(_input.blocks.ptrw(), _input.blocks.size());
 	}
 }
+
+Dictionary VoxelMeshUpdater::to_dictionary(const Stats &stats) {
+	Dictionary d;
+	d["min_time"] = stats.min_time;
+	d["max_time"] = stats.max_time;
+	d["remaining_blocks"] = stats.remaining_blocks;
+	return d;
+}

terrain/voxel_mesh_updater.h

@@ -61,6 +61,8 @@ public:
 
 	int get_required_padding() const;
 
+	static Dictionary to_dictionary(const Stats &stats);
+
 private:
 	static void _thread_func(void *p_self);
 	void thread_func();

terrain/voxel_provider_thread.cpp

@@ -207,3 +207,11 @@ void VoxelProviderThread::thread_sync(int emerge_index, Stats stats) {
 		sorter.sort(_input.blocks_to_emerge.ptrw(), _input.blocks_to_emerge.size());
 	}
 }
+
+Dictionary VoxelProviderThread::to_dictionary(const Stats &stats) {
+	Dictionary d;
+	d["min_time"] = stats.min_time;
+	d["max_time"] = stats.max_time;
+	d["remaining_blocks"] = stats.remaining_blocks;
+	return d;
+}

terrain/voxel_provider_thread.h

@@ -57,6 +57,8 @@ public:
 	void push(const InputData &input);
 	void pop(OutputData &out_data);
 
+	static Dictionary to_dictionary(const Stats &stats);
+
 private:
 	static void _thread_func(void *p_self);
 

terrain/voxel_terrain.cpp

@@ -218,16 +218,10 @@ void VoxelTerrain::immerge_block(Vector3i bpos) {
 
 Dictionary VoxelTerrain::get_statistics() const {
 
-	Dictionary provider;
+	Dictionary provider = VoxelProviderThread::to_dictionary(_stats.provider);
-	provider["min_time"] = _stats.provider.min_time;
-	provider["max_time"] = _stats.provider.max_time;
-	provider["remaining_blocks"] = _stats.provider.remaining_blocks;
 	provider["dropped_blocks"] = _stats.dropped_provider_blocks;
 
-	Dictionary updater;
+	Dictionary updater = VoxelMeshUpdater::to_dictionary(_stats.updater);
-	updater["min_time"] = _stats.updater.min_time;
-	updater["max_time"] = _stats.updater.max_time;
-	updater["remaining_blocks"] = _stats.updater.remaining_blocks;
 	updater["updated_blocks"] = _stats.updated_blocks;
 	updater["mesh_alloc_time"] = _stats.mesh_alloc_time;
 	updater["dropped_blocks"] = _stats.dropped_updater_blocks;

util/profiling_clock.h

@@ -0,0 +1,21 @@
+#ifndef PROFILING_CLOCK_H
+#define PROFILING_CLOCK_H
+
+#include <core/os/os.h>
+
+struct ProfilingClock {
+	uint64_t time_before = 0;
+
+	ProfilingClock() {
+		restart();
+	}
+
+	uint64_t restart() {
+		uint64_t now = OS::get_singleton()->get_ticks_usec();
+		uint64_t time_spent = now - time_before;
+		time_before = OS::get_singleton()->get_ticks_usec();
+		return time_spent;
+	}
+};
+
+#endif // PROFILING_CLOCK_H