matlabshared.targetsdk.Profiler class
Package:matlabshared.targetsdk
Superclasses:
Code execution profiler that collects timing information for generated code
Description
AProfiler
object that specifies the code execution profiler that collects time information for generated code.
Construction
creates aH
= Profiler(profilerName
)Profiler
object and sets theName
property toprofilerName
.
Input Arguments
profilerName
—Name of profiler configuration
string
分析器配置名称指定为一个string.
Example:
Data Types:char
Properties
Name
—Name of profiler configuration
string
Name ofProfiler
object that a target supports. The default is''
.
Data Types:char
SourceFile
—Source code file for the profiling function
string
Name of the file that contains the source code of the profiler function. The default is''
.
The file specification must include a full path. The path can include tokens. If a path separator is included as part of the path, it must be valid for all supported host platforms.
Data Types:char
IncludeFile
—Include file for the profiling function
string
Name of the file that contains the declarations for the profiling function. The default is''
.
The file must include a full path. The path can include tokens. If a path separator is included as part of the path, it must be valid for all supported host platforms.
Data Types:char
TimerReadFcn
—Timer counter function
string
Name of the source code function that returns the profiling timer counter value. You must implement this function in a source file and specify the source file with propertySourceFile
.
Data Types:char
TimerDataType
—Data type of the profiling function
string
Name of the data type of the return value of the profiling functionTimerReadFcn
. The default is'uint32'
.
Data Types:char
TimerTicksPerSecond
—Resolution of the profiling function
integer
The resolution of the profiling timer in ticks per second. The default is1e9
.
Data Types:double
TimerUpcounting
—Denotes if profiling function counts up
logical
The flag that denotes whether the profiling function counts up. The default istrue
.
Data Types:logical
StoreCoreID
—Denotes if profiling function stores the core ID
logical
The flag that denotes whether the profiling function stores the ID of the core on which it executes. The default istrue
.
Data Types:logical
PrintData
—Denotes if the profiling function prints data
logical
The flag that denotes whether the profiling function prints the profiling data. The default istrue
.
The data can be printed only if generated code runs on hardware with a file system, for example Linux®. If the generated code runs on hardware without a file system, data is collected in a source code buffer. The default istrue
.
Data Types:logical
PrintInstantly
—Denotes if profiling function prints data instantly
logical
A flag that denotes whether the profiling function prints the profiling data instantly. When set totrue
, the profile data prints to the standard output as soon as it is collected. Otherwise, the profile data prints when the generated code terminates. The default istrue
.
If the profiling data prints instantly, the amount of data that can be collected is not limited by the profiling buffer size. However, since the data prints as it is collected, executing the print instruction may take some time. This can greatly affect the profiling timing data.
Data Types:logical
BufferName
—Buffer that holds the profiling data
string
The name of the buffer in the generated code that holds the profiling data. The default is'profilingData'
.
Data Types:char
DataLength
—Size of the buffer that holds the profiling data
integer
The size of the buffer in generated code that holds the profiling data. The default is400
.
Once the buffer is full, collection of profiling data stops.
Data Types:double
GetDataFcn
—MATLAB®function that retrieves profiling data
string
The name of the MATLAB function that retrieves the profiling data from a file or a buffer on hardware and copies the data to the MATLAB host computer. The default is''
.
The source of the retrieval depends on the setting of thePrintData
property. If set totrue
, the function retrieves the profiler data from a file. Iffalse
, the function retrieves the profiler data from the profiling buffer in the generated code running on the hardware.
Data Types:char
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