52/2009 : Analyzing Performance and Dynamic Behavior of Embedded Java Software with Calling-Context Cross-Profiling

RR Number

52/2009

Conference

Proceedings of the 7th International Conference on the Principles and Practice of Programming in Java (PPPJ 2009)

Author(s)

Philippe Moret, Walter Binder, Martin Schoeberl, Alex Villazon, Danilo Ansaloni

Abstract

Prevailing approaches to analyze embedded software performance either require the deployment of the software on the embedded target, which can be tedious and may be impossible in an early development phase, or rely on simulation, which can be extremely slow. We promote cross-profiling as an alternative approach, which is particularly well suited for embedded Java processors. The embedded software is profiled in any standard Java Virtual Machine in a host environment, but the generated cross-profile estimates the execution time on the target. We implemented our approach in the customizable cross-profiler CProf, which generates calling-context cross-profiles. Each calling-context stores dynamic metrics, such as the estimated CPU cycle consumption on the target. We visualize the generated calling-context cross-profiles as ring charts, where callee methods are represented in segments surrounding the caller’s segment. As the size of each segment corresponds to the relative CPU consumption of the corresponding calling-context, the visualization eases the location of performance bottlenecks in embedded Java software, revealing hot methods, as well as their callers and callees, at one glance.

Bibtex

@INPROCEEDINGS{jop:cprof:demo:pppj09,
  author = {Philippe Moret and Walter Binder and Martin Schoeberl and Alex Villazon
	and Danilo Ansaloni},
  title = {Analyzing Performance and Dynamic Behavior of Embedded {Java} Software
	with Calling-Context Cross-Profiling},
  booktitle = {Proceedings of the 7th International Conference on the Principles
	and Practice of Programming in Java (PPPJ 2009)},
  year = {2009},
  address = {Calgary, Alberta, Canada},
  month = {August},
  publisher = {ACM},
  url = {http://www.jopdesign.com/doc/pppj09-cprof.pdf}
}

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