Performance Analysis Setup dialog box

In this section:

The Performance Analysis Setup dialog box is available from the Performance Analysis window and from the C-SPY Driver menu.

Use this dialog box to configure the analysis. You can configure up to four counters. In a multicore environment, four counters per core are available. The configuration in the dialog box applies to the currently selected core.

Requirements

A C-SPY hardware debugger driver.

Enabled

Select this check box to activate this counter.

Count mode

Most likely, the code between the start condition event and the end condition event will be executed several times. Use this option to select how to perform the measurement with regard to this. Choose between:

Accumulated: Records the total count of the selected measurement item over all execution passes.
Maximum: Records the count of the selected measurement item from the execution pass with the highest count.
Minimum: Records the count of the selected measurement item from the execution pass with the lowest count.
Newest: Records the count of the selected measurement item from the last execution pass.
Pass: Ignores the measurement item and instead counts the number of execution passes (the number of times the code between the start condition event and the end condition event is executed).

Measurement item

Selects what to measure. Choose between:

All instructions count: The number of times any instructions are executed.
Branch instructions count: The number of times any instructions that trigger branching are executed.
EI level interrupt count: The number of times EI-level interrupts are accepted.
FE level interrupt count: The number of times FE-level interrupts are accepted.
All instruction async exception count: The number of times any instruction-asynchronous exceptions are accepted.
All instruction sync exception count: The number of times any instruction-synchronous exceptions are accepted.
Clock cycle: The number of clock cycles.
Non-interrupt cycle: The number of cycles excluding the interrupt processing.
Interrupt disable cycle of DI/EI: The number of cycles in which DI/EI interrupts are disabled.
IFU instruction fetch request count: The number of instruction fetch requests issued by the Instruction Fetch Unit.
Response count for IFU issued instruction fetch: The number of instruction cache non-wait responses for instruction fetch requests issued by the Instruction Fetch Unit.
Flash ROM data request count: The number of flash ROM data requests.

Start condition event

The event that starts the performance measurement. Choose between:

Measurement starts when execution starts: The counter will start the measurement when C-SPY starts executing your application.
Performance analysis start @ address: The counter will start the measurement when the execution triggers this Performance Start breakpoint.

For information about Performance Start breakpoints, see Performance Analysis Start breakpoints dialog box.

End condition event

The event that stops the performance measurement. Choose between:

Measurement stops when execution stops: The counter will stop the measurement when C-SPY stops executing your application.
Performance analysis stop @ address: The counter will stop the measurement when the execution triggers this Performance Stop breakpoint.

For information about Performance Stop breakpoints, see Performance Analysis Stop breakpoints dialog box.

Threshold violation mode

Select this option to specify a maximum limit for the count. When the count value reaches this limit, the measurement stops.

IAR Embedded Workbench for RH850 3.20.x