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03-UnrealEngine/性能优化/UnrealInsight以及其他性能监测工具.md

@@ -165,7 +165,11 @@ Game Thread 造成的开销，基本可以归因于 C++ 和蓝图的逻辑处理
 针对Tick可使用：
 -   **stat game**：显示 Tick 的耗时情况
 -   **dumpticks**：可将所有正在 _tick_ 的 _actor_ 打印到 _log_ 中
+	- dumpticks grouped
 -   **stat tickables**
+- **listtimers**
+- **stat uobjects**
+- [[#MOVING SCENE COMPONENTS]]
 
 复杂逻辑：需要借助 Unreal Frontend Profiler / Unreal Insights 等工具对游戏逻辑中开销较大的代码进行定位。
 ### LandscapeSubsystem Tick
@@ -234,6 +238,42 @@ Draw Thread 的主要开销来源于 **Visibility Culling** 和 **Draw Call**
 	-   对于纹理的优化，后续将另开新篇加以详细介绍
 ![](https://pic1.zhimg.com/80/v2-81aea063a7fd1de8c2eef38b355268bc_720w.jpg)
 
+## 内存
+- MEMREPORT -full
+	- Runs a number of individual commands for memory profiling
+- obj list class= 
+	- Example: obj list class=AnimSequence
+- Only in Packaged Builds 
+	- Example: AnimSequence twice as large in editor builds.
+
+这样就就可以查看指定Object的内存占用情况。
+
+## COLLISION & PHYSICS
+- Unreal configured to work out of the box. 
+	- “Collision Enabled” => Physics + Query 
+	- Most things require just ‘QueryOnly’ 
+- Disable on components players can’t reach or interact with. 
+- Profiling 
+	- stat physics, stat collision
+	- obj list class=BodySetup 
+	- show CollisionPawn, show CollisionVisibility
+- Tip: Landscape may use lower collision MIPs
+
+## MOVING SCENE COMPONENTS
+移动场景组件可能会造成一些性能问题，需要注意以下几点：
+- Move/Rotate only once per frame 
+- **Disable Collision & GenerateOverlaps=False** 
+- AutoManageAttachment 
+	- Audio & Niagara 
+- Profiling 
+	- stat component
+
+### MOVING COMPONENTS - BOUNDS
+- ***UseAttachParentBound=True***
+	- Skips “CalcBounds” 
+-  检查命令：show Bounds / showflag.bounds 1 
+
+蓝图中勾选***UseAttachParentBound***，以此跳过计算CalcBounds的问题。
 ## UnrealFrontend Profiler
 官方文档：[Profiler Tool](https://docs.unrealengine.com/4.27/zh-CN/TestingAndOptimization/PerformanceAndProfiling/Profiler/)
 其他参考文章：