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IAR Embedded Workbench for RX 5.20

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.

PerformanceSetup_01_RX.png

Use this dialog box to configure the analysis. You can configure one or two counters. The size of the counters is 32 bits, which limits the amount of data they can collect. To collect more data, select the Use 64-bit counter option and use just one counter.

Requirements

A C-SPY hardware debugger driver.

Condition

Selects what to measure. Choose between:

Not in use

The counter is not in use.

Execution cycle

The number of cycles that have elapsed.

Execution cycle (supervisor mode)

The number of cycles that have elapsed in supervisor mode.

Exception and interrupt cycle

The number of cycles spent processing interrupts and other exceptions.

Exception cycle

The number of cycles spent processing exceptions.

Interrupt cycle

The number of cycles spent processing interrupts.

Execution count

The number of valid instructions executed.

Exception and interrupt count

The number of accepted interrupts and other exceptions.

Exception count

The number of accepted exceptions.

Interrupt count

The number of accepted interrupts.

Display list

This list displays any performance start/stop breakpoints connected to the counter. Information is provided in these columns:

Event

Identifies the breakpoint.

Type

The type of breakpoint: Start or Stop.

Address

The memory address where the breakpoint is placed.

For information about performance start/stop breakpoints, see Performance Start breakpoints dialog box and Performance Stop breakpoints dialog box.

Display the cycle as a time span

Converts the number of cycles spent into time and displays the value in the Time column of the Performance Analysis window, using the operating frequency value from the Operating Frequency dialog box; see Operating Frequency dialog box. This option requires that the counter Condition measures cycles.

Measure the performance only once

Specifies that the code section between two performance breakpoints is only analyzed once, even if the execution loops. This option can only be used with performance breakpoints.

Use 64-bit counter

Combines the two 32-bit counters to use them as a single 64-bit counter. This increases the capacity when measuring the performance of a single address range. Only the settings from Counter 1 are used.