After a SIL or PIL simulation, you can analyze execution-time
data using methods from the coder.profile.ExecutionTime and coder.profile.ExecutionTimeSection classes.
Open rtwdemo_sil_topmodel.
On the Configuration Parameters > Code Generation > Verification pane, specify profiling options:
Select the Measure task execution time check box.
Specify a Workspace variable,
for example, myExecutionProfile.
From the Save options drop-down
list, select All data.
Run a SIL simulation.
The software generates the workspace variable myExecutionProfile,
an coder.profile.ExecutionTime object.
To get the total number of code sections that have profiling
data, use the Sections method.
>> no_of_Sections = myExecutionProfile.Sections
no_of_Sections =
1×2 ExecutionTimeTaskSection array with properties:
Name
Number
ExecutionTimeInTicks
SelfTimeInTicks
TurnaroundTimeInTicks
TotalExecutionTimeInTicks
TotalSelfTimeInTicks
TotalTurnaroundTimeInTicks
MaximumExecutionTimeInTicks
MaximumExecutionTimeCallNum
MaximumSelfTimeInTicks
MaximumSelfTimeCallNum
MaximumTurnaroundTimeInTicks
MaximumTurnaroundTimeCallNum
NumCalls
ExecutionTimeInSeconds
Time
coder.profile.ExecutionTimeSection object
for a profiled code section, use the method Sections.>> FirstSectionProfile = myExecutionProfile.Sections(1)
SecondSectionProfile = myExecutionProfile.Sections(2)
FirstSectionProfile =
ExecutionTimeTaskSection with properties:
Name: 'rtwdemo_sil_topmodel_initialize'
Number: 1
ExecutionTimeInTicks: 1188
SelfTimeInTicks: 1188
TurnaroundTimeInTicks: 1188
TotalExecutionTimeInTicks: 1188
TotalSelfTimeInTicks: 1188
TotalTurnaroundTimeInTicks: 1188
MaximumExecutionTimeInTicks: 1188
MaximumExecutionTimeCallNum: 1
MaximumSelfTimeInTicks: 1188
MaximumSelfTimeCallNum: 1
MaximumTurnaroundTimeInTicks: 1188
MaximumTurnaroundTimeCallNum: 1
NumCalls: 1
ExecutionTimeInSeconds: 5.4000e-07
Time: 0
SecondSectionProfile =
ExecutionTimeTaskSection with properties:
Name: 'rtwdemo_sil_topmodel_step [0.1 0]'
Number: 2
ExecutionTimeInTicks: [1×101 uint64]
SelfTimeInTicks: [1×101 uint64]
TurnaroundTimeInTicks: [1×101 uint64]
TotalExecutionTimeInTicks: 70316
TotalSelfTimeInTicks: 70316
TotalTurnaroundTimeInTicks: 70316
MaximumExecutionTimeInTicks: 2448
MaximumExecutionTimeCallNum: 2
MaximumSelfTimeInTicks: 2448
MaximumSelfTimeCallNum: 2
MaximumTurnaroundTimeInTicks: 2448
MaximumTurnaroundTimeCallNum: 2
NumCalls: 101
ExecutionTimeInSeconds: [1×101 double]
Time: [101×1 double]
Use coder.profile.ExecutionTimeSection methods
to extract profiling information for a particular code section. For
example, use Name to obtain
the name of a profiled task.
>> name_of_section = SecondSectionProfile.Name name_of_section = rtwdemo_sil_topmodel_step [0.1 0]
If the timer is uncalibrated and you know the timer rate, for
example 2.2 GHz, you can use the coder.profile.ExecutionTime method TimerTicksPerSecond to calibrate the
timer:
>> myExecutionProfile.TimerTicksPerSecond = 2.2e9; >> SecondSectionProfile = myExecutionProfile.Sections(2);