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6 <title>Basic Operation</title> |
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11 <h2>Basic Operation</h2> |
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12 <p>The following Profiler information provides a view on how trace items have been put together to produce a functional combination of measurement software.</p> |
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13 <p><a href="#figure1">Figure 1</a> gives an overview of the practical instrumentation in use within the Performance Investigator Tool. As shown, the low-level functionality has been encapsulated to a LDD (Logical Device Driver), which is able to perform under a supervisor mode with kernel privileges. In Figure 2, the data flow is represented by a dashed line, and the control flow with a solid line. Active elements that perform processing (processes and interrupts) are indicated in grey and passive elements (software components) in white.</p> |
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14 <p align="center"><img src="../images/concpt_thread_analysis.png" width="1004" height="754"></p> |
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15 <p class="figure"><a name="figure1"></a>Figure 1. Conceptual model of the thread level load analysis instrumentation</p> |
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16 <p><strong>Related references</strong></p> |
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17 <ul> |
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18 <li><a href="func_level_load.htm">Function Level Load Analysis</a></li> |
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19 <li><a href="dll_support.htm">DLL Support Trace and Analysis</a></li> |
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20 </ul> |
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21 <div id="footer">Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. <br>License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a></div> |
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