Execution Time

R2026b

Output total execution time in Run in Kernel mode or Priority mode

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Execution Time block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink Desktop Real-Time / Target Profiling

Description

The Execution Time block outputs the execution time in Run in Kernel mode or Priority mode.

In Connected IO mode, this block does not perform any action. It outputs zeros.

Examples

Execution Time Measurement and Block Profiling

Analyze model execution performance in Simulink Desktop Real-Time™.

• Open Script

Ports

Output

Total Exec Time — Total execution time for the previous base rate tick

double

Presents the total execution time as of the previous sample time.

Task Exec Time — Task execution times for individual sample rates (optional)

vector of double

Presents the task execution times for individual sample rates in a multitasking model as of the previous sample time.

Dependency

When you select Measure task execution times, this port is visible.

Parameters

Measure task execution times — Show task execution times for individual tasks

‘off’ (default) | ‘on’

Makes visible the port Task Exec Time, which presents the task execution times for individual sample rates in a multitasking model as of the previous sample time.

Programmatic Use

Block Parameter: ShowTaskTimes

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"sldrtlib/Target Profiling/Execution Time"

Example: add_block("sldrtlib/Target Profiling/Execution Time","myModel/myBlock",MakeNameUnique="on")

Version History

Introduced in R2017a

R2024b: Update to blocks with port names

In R2024b, when you enable optional ports, such as Show "Missed Ticks" port, these Simulink^® Desktop Real-Time™ block ports appear with labels.