| author | Toni Pulkkinen <ext-toni.p.pulkkinen@nokia.com> |
| Wed, 23 Jun 2010 15:05:09 +0300 | |
| changeset 12 | ae255c9aa552 |
| parent 5 | 844b047e260d |
| permissions | -rw-r--r-- |
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Performance Investigator Carbide extension 2.4.0
Toni Pulkkinen <ext-toni.p.pulkkinen@nokia.com>
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Performance Investigator Carbide extension 2.4.0
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Performance Investigator Carbide extension 2.4.0
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<title>Overview</title> |
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Performance Investigator Carbide extension 2.4.0
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Performance Investigator Carbide extension 2.4.0
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Performance Investigator Carbide extension 2.4.0
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Performance Investigator Carbide extension 2.4.0
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<body> |
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Performance Investigator Carbide extension 2.4.0
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<h2>Overview</h2> |
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<p>The Performance Investigator is a software performance measurement tool. The |
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Performance Investigator Carbide extension 2.4.0
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Performance Investigator collects run-time information from your application |
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and other software running on a Symbian OS enabled device, such as a Nokia S60 |
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phone.. The recorded information is then analyzed in the Performance |
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Performance Investigator Carbide extension 2.4.0
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Investigator analyzer software running on a PC.</p> |
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Performance Investigator Carbide extension 2.4.0
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<p>Performance Investigator currently supports the following:</p> |
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Performance Investigator Carbide extension 2.4.0
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<ul> |
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<li>Nokia devices running S60 3.0 and 3.1 </li> |
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<li>SEMC devices running UIQ 3.0</li> |
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<li>Symbian TechView for Symbian OS 9.2, 9.3, 9.4, and 9.5</li> |
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</ul> |
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<p>The Performance Investigator collects performance data. It interrupts |
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software execution at regular intervals and copies to memory the contents of |
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some processor registers and the results of some Symbian OS calls.</p> |
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<p>The Performance Investigator contains two main parts:</p> |
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<ul> |
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<li>First, on the target device is a user application called the Profiler. |
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Installed with the Profiler is a device driver component that collects |
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information from low-level (kernel and hardware-level) sources that are not |
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Performance Investigator Carbide extension 2.4.0
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generally accessed by application software. The Profiler acts as an |
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Performance Investigator Carbide extension 2.4.0
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interface to the device driver component and is required for its |
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Performance Investigator Carbide extension 2.4.0
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configuration, activation, and deactivation.</li> |
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Performance Investigator Carbide extension 2.4.0
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<li>Second, on the PC there is Performance Investigator code integrated with |
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Performance Investigator Carbide extension 2.4.0
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Carbide.c++. This software consists of an importer for processing profiler |
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Performance Investigator Carbide extension 2.4.0
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data and the Analyzer, which provides a user-friendly way to examine and |
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analyze the run-time performance information.</li> |
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</ul> |
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<p>The following figure illustrates the basic scenario to gather and analyze |
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software performance data. The target device contains the actual performance |
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measurement instrumentation referred to as the Profiler. The data file imported |
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by Carbide.c++ is analyzed on a PC workstation independent of the target |
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device.</p> |
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<p align="center"><img src="../../images/overview.png" width="537" |
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height="336"></p> |
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<p class="figure">Figure 1. Performance Investigator Tool: profiler and |
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analyzer</p> |
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<p>Performance measurements follow a pattern in which separate performance |
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related activities are recorded to a profiler data file within the target |
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device as distinct traces. Each trace represents an independent performance |
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characteristic of the target device. When the profiler data file is imported by |
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Carbide.c++, more information can be derived from the traces. Each trace can be |
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independently analyzed. Furthermore, information gathered from the software at |
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compile-time can be used in the analysis in order to exploit the |
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cross-relations between elements of information available exclusively at |
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run-time or at compile-time.</p> |
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<p><strong>Related references </strong></p> |
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<ul> |
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<li><a href="sw_performance.htm">Software Performance</a></li> |
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<li><a href="../../reference/profiler/profiler.htm">Profiler</a></li> |
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<li><a href="../../reference/analyzer/analyser.htm">Analyzer</a></li> |
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<li><a href="../../reference/abbrev.htm">Acronyms</a></li> |
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</ul> |
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<div id="footer"> |
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Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies). All rights |
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reserved. <br> |
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License: <a |
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href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a></div> |
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</body> |
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</html> |