AbsInt TimingProfiler

• Tests on physical hardware are typically based on code instrumentation, require elaborate technical equipment and cause significant effort. Worse still, they only provide feedback about the average-case behavior.
• For obtaining worst-case guarantees, static analysis tools such as aiT WCET Analyzers are available that do not require access to the physi­cal hardware and can be easily automa­ted. However, they are typically used late in the development and have to take into account the software and hardware configuration in great detail.

TimingProfiler has been specifically developed to apply static-analysis techniques at early devel­opment stages, providing quick feed­back about the timing behavior. It takes executable code as input and explores the timing of all potential execution paths of each task on a generic processor with the target instruction set, e.g. PowerPC.

The goal is not to give precise worst-case guarantees, but to enable development of appli­ca­tions in a timing-conscious way without cumber­some measurements on physical hardware. In fact, the analysis is appli­cable when no hardware is available yet, or the application is not mature enough for measurements.

No user interaction is required; information not statically avail­able is filled in by specialized heu­ristics. Hence, the resulting execution time is a realistic worst-case scenario, albeit not a guar­antee as provided by aiT.

• TimingProfiler gives detailed information about the execution time and time-critical paths.
• The analysis is purely static. No access to physical hardware and no code instrumentation are required.
• The analyzer does not need to be stimulated with concrete inputs. By default, it takes all potential inputs into account.
• Nevertheless, the analysis can be restricted to specific execution scenarios if desired.
• The tool shows call and control flow graphs, and displays all relevant information about the executable.
• Hotspots and bottlenecks can be identified at early development stages so that late-stage integration problems can be avoided.
• This provides for easy integration into the development process, and enables application in continuous test and integration frameworks.
• TimingProfiler can be seamlessly coupled with StackAnalyzer to additionally take the stack behavior into account, providing a unified approach to addressing resource usage.

TimingProfiler is available for a wide and ever-growing array of target processors and compilers.

TimingProfiler is also available as an integral part of the SCADE Suite, the market-leading mission and safety-critical embedded soft­ware de­vel­opment environment from ANSYS. Within the Suite, the tool is called Timing and Stack Optimizer.

We also offer a plugin for automatic integration of TimingProfiler in Jenkins, the leading open-source automation server.

TimingProfiler Flyer

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