手动优化性能

手动优化模型设置，找出并解决性能瓶颈

通过使用以下一种或多种方法手动优化模型，可以提高模型的仿真速度。有关详细信息，请参阅How Optimization Techniques Improve Performance and Accuracy。

工具

Analyze distribution of simulation execution time among model components

函数

`generateReport`	Create report of data from profiling simulation run using Simulink Profiler (自 R2023a 起)
`sldiagnostics`	显示 Simulink 系统的诊断信息

对象

Simulink.profiler.Data Access profiling information created using Simulink Profiler (自 R2020a 起)

模型设置

模型配置参数：仿真目标

主题

提高仿真速度
提高仿真速度的方法。
检查并提高仿真准确性
如何解释仿真准确性和不正确的仿真。
Simulink 探查器如何捕获性能数据
Simulink 探查器如何找出模型中减慢仿真速度的部分。
How Optimization Techniques Improve Performance and Accuracy
Use optimization techniques to understand model behavior and modify model settings to improve performance and accuracy.
提高性能的建模方法
提高模型性能的方法。
Running Multiple Simulations
Run multiple simulations from the parsim and batchsim commands, and the Multiple Simulations panel in Simulink^® Editor.
Understanding Total Time and Self Time in Profiler Reports
The Simulink Profiler displays the performance of the components of your model and their simulation phases.

精选示例

模型顾问

此示例说明模型顾问检查模型或子系统的条件和配置设置的能力，这些条件和配置设置会导致由模型表示的系统的仿真不准确或低效，或从模型生成低效代码。模型顾问会生成一份报告，其中列出它找到的所有次优条件或设置，并在适用情形下给出更好的模型配置设置建议。

打开实时脚本

Analyze Simulation Execution Using Simulink Profiler

Identify issues that can contribute to poor simulation performance.

打开实时脚本

Simulink Model Discretizer

This interactive example shows how to discretize the Actuator Model in the slexAircraftExample model.

打开模型

Parallel Simulations Using Parsim: Test-Case Sweep

Run multiple Simulink® simulations corresponding to different test cases in the Signal Editor block using SimulationInput objects and the parsim command. The parsim command uses Parallel Computing Toolbox™, if it is available, to run simulations in parallel, otherwise the simulations are run in serial.

打开模型

Multiple Simulations Workflow Tips

The goal of this example is to provide helpful tips for running multiple simulations using parallel simulation tools. This example will work even if the Parallel Computing Toolbox™ is not available, but the simulations will run in serial. We will be using the model sldemo_suspn_3dof.

打开模型