减少数据副本

调整模型参数以提高代码执行速度并减少内存使用量

通过消除生成的代码中的数据副本，减少 RAM 和 ROM 消耗并提高代码执行速度。代码生成器会消除一些数据副本。通过调整某些模型参数设置、为 MATLAB Function 模块的输入和输出参量指定相同的名称，以及使用 Simulink 信号指定重用，您可以消除其他数据副本。

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减少数据副本（默认操作）

Optimize Generated Code by Passing Reusable Subsystem Outputs as Individual Arguments
The code generator eliminates data copies from local variables back to global block I/O structures by passing reusable subsystem outputs as individual arguments instead of as a pointer to a structure stored in global memory.
Minimize Computations and Storage for Intermediate Results at Block Outputs
The code generator folds block computations into a single expression, instead of generating separate code statements and storage declarations for each block in a model.
在生成的代码中重用全局模块输出
代码生成器尝试重用全局变量。
Enable and Reuse Local Block Outputs in Generated Code
Where possible, the code generator declares block outputs as local variables, so that it can potentially reuse these variables.
将数据副本转换为指针赋值
代码生成器通过尝试用指针赋值取代 for 循环控制的元素赋值和 memcpy 函数调用，来优化向量信号赋值的生成代码。
Virtualized Output Ports Optimization
The code generator eliminates code and data storage associated with root output ports by storing the signal entering the root output port as a global variable.
Inline Invariant Signals
Use the numerical values of invariant signals instead of their symbolic names in the generated code.
Data Copy Reduction for Data Store Read and Data Store Write Blocks
The code generator attempts to eliminate data copies for Data Store Read and Data Store Write blocks.
Reduce Data Copies for Bus Assignment Blocks in Generated Code
For models containing a Bus Assignment block, if possible, the code generator uses the same variable for the block input and output.

减少数据副本（指定操作）

Remove Data Copies by Reordering Block Operations in the Generated Code
Reorder block operations in the generated code to eliminate temporary variables and associated data copies.
Optimize Generated Code by Using Signal Labels to Guide Buffer Reuse
Remove data copies by using signal labels.
优化全局变量使用
选择全局变量引用优化来满足您的内存使用量和执行速度要求。
Specify Buffer Reuse for MATLAB Function Blocks in a Path
Reuse buffers across MATLAB Function blocks.
Specify Buffer Reuse for Signals in a Path
Use the Reusable storage class to specify buffer reuse for multiple signals in a path.
Generate Efficient Code for Bus Signals
Model buses to maximize efficiency of the generated code.

减少数据副本

主题

减少数据副本（默认操作）

减少数据副本（指定操作）

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