Renesas V850 Series Technical Information PDF herunterladen (Seite 38)

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The tools supported for this analyzer and their operating environments are shown in the table below.

The performance analyzer consists of four windows:

◆ Execution transition status display window

This window displays the object movement versus time relationship, with time indicated by the horizontal

axis and object movement by the vertical axis. Analysis of system status changes caused by task switching

or interrupts/exceptions, and object accesses based on real-time OS system calls are displayed as symbols,

making it easy for the user to ascertain the sequence and transition of execution. These functions enable

specification of the problems for the performance analysis.

◆ CPU utilization rate display window

This window can be used to confirm the object execution time and CPU utilization rate that guide users in the

analysis of the system overhead and indicate execution performance, so that the system performance can

be evaluated from the view point of the idle time and interrupt time.

◆ Processing time pattern distribution display window

Users can analyze the causes of scheduling problems by viewing the statistical breakdown of the execution

processing time, as well as the interrupt frequency and execution time maximum/average/minimum figures

displayed in this window.

◆ Trace display window

Trace data from the execution transition status can be viewed. This window can be used as a sub window of

the execution transition status window so that timestamps of execution status transitions and values re-

turned by system calls can be checked.

Target Device

V850 Series

AZ850 RX850

RX850 Pro

ID850

Note

ID850QB

Supported Tool

Debugger Simulator

SM850

SM+

Note Some functions can also be executed using a partner debugger.

Execution transition status display window

Trace display window

Processing time pattern distri-

bution display window

CPU utilization rate

display window

REAL-TIME OS

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Renesas V850 Series Technical Information Seite 38