| 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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ae255c9aa552
Performance Investigator Carbide extension 2.4.0
Toni Pulkkinen <ext-toni.p.pulkkinen@nokia.com>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" |
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Performance Investigator Carbide extension 2.4.0
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"http://www.w3.org/TR/html4/loose.dtd"> |
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Performance Investigator Carbide extension 2.4.0
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<html> |
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Performance Investigator Carbide extension 2.4.0
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<head> |
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Performance Investigator Carbide extension 2.4.0
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<meta http-equiv="content-type" content="text/html; charset=UTF-8"> |
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Performance Investigator Carbide extension 2.4.0
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<title>Function Calls</title> |
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Performance Investigator Carbide extension 2.4.0
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<link href="../../../book.css" rel="stylesheet" type="text/css"> |
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Performance Investigator Carbide extension 2.4.0
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</head> |
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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>Function Calls</h2> |
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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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<p>If the profiler data file contained function call information, select the |
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Performance Investigator Carbide extension 2.4.0
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Function Calls tab to show information about the function call relationships |
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Performance Investigator Carbide extension 2.4.0
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during the selected time period. Figure 1 shows an example set of tables that |
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Performance Investigator Carbide extension 2.4.0
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provide information about function calls.</p> |
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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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<p align="center"><img src="images/function_call_info.png" width="764" |
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Performance Investigator Carbide extension 2.4.0
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height="609"></p> |
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Performance Investigator Carbide extension 2.4.0
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<p class="figure">Figure 1. Function Call Information</p> |
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Performance Investigator Carbide extension 2.4.0
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parents:
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<p>Only one function can be selected at a time. For the selected function, you |
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Performance Investigator Carbide extension 2.4.0
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can see the functions that have been found calling it and the functions that it |
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Performance Investigator Carbide extension 2.4.0
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has called. Additional columns provide more information, such as the percentage |
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Performance Investigator Carbide extension 2.4.0
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of each functions activity based on 100 percent of all calls to and from the |
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Performance Investigator Carbide extension 2.4.0
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selected function, Function's starting address (in hex), binary where function |
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Performance Investigator Carbide extension 2.4.0
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exists, and the path of the binary.</p> |
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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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<p>Description of table columns:<br> |
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Performance Investigator Carbide extension 2.4.0
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(for all tables)</p> |
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Performance Investigator Carbide extension 2.4.0
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<ul> |
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<li>The <strong>Function Start</strong> column displays the hexadecimal start |
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Performance Investigator Carbide extension 2.4.0
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address of each function.</li> |
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Performance Investigator Carbide extension 2.4.0
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<li>The <strong>In Binary</strong> column tells(s) the binary containing each |
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Performance Investigator Carbide extension 2.4.0
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function.</li> |
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<li>The <strong>Path of Binary</strong> column shows the PC folder containing |
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Performance Investigator Carbide extension 2.4.0
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each function’s binary.</li> |
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<li>The<strong>Is Caller %</strong> column shows the percentage of time that |
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Performance Investigator Carbide extension 2.4.0
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this function was the caller of the function that was executing.</li> |
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Performance Investigator Carbide extension 2.4.0
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<li>The <strong>Is Called %</strong> column shows the percentage of time in |
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Performance Investigator Carbide extension 2.4.0
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the selected time period that this function was executing.</li> |
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Performance Investigator Carbide extension 2.4.0
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</ul> |
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<p>(in the <strong>Select One Function</strong> table)</p> |
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Performance Investigator Carbide extension 2.4.0
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<ul> |
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Performance Investigator Carbide extension 2.4.0
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<li>The <strong>Called Samples</strong> column shows the number of samples in |
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Performance Investigator Carbide extension 2.4.0
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which this function was executing.</li> |
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Performance Investigator Carbide extension 2.4.0
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<li>The <strong>Caller Samples</strong> column displays the number of samples |
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Performance Investigator Carbide extension 2.4.0
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in which this function was the caller of the function that was |
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Performance Investigator Carbide extension 2.4.0
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executing.</li> |
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</ul> |
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<p>The selected function may have been called from one or more functions. In |
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the <strong>Functions calling the selected function</strong> table, the |
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<strong>% of Calls</strong> column shows what percentage of the time the |
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selected function was called by each function in the table. For each function |
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in this table, the <strong>Is Caller %</strong> column indicates the percentage |
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of samples that the function was the caller of the executing function.</p> |
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<p>The selected function may have called one or more functions. In the |
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<strong>Functions called by the selected function</strong> table, the <strong>% |
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of Calls</strong> column shows what percent of the time the selected function |
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called each function in the table. For each function in this table, the |
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<strong>Is Called %</strong> column indicates in what percentage of samples the |
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function was executing.</p> |
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<p class="note"><strong>NOTE</strong> On the target device, the link register |
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usually contains the return address of the caller function. However, a called |
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function may temporarily use the link register to hold a constant or variable. |
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Performance Investigator uses link register values in the profiler data file to |
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Performance Investigator Carbide extension 2.4.0
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determine the names of caller functions. When PI cannot determine the name of a |
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Performance Investigator Carbide extension 2.4.0
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caller function, it may be because the link register held a constant or |
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Performance Investigator Carbide extension 2.4.0
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variable. For example, if the link register held a constant 0x0, PI would |
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Performance Investigator Carbide extension 2.4.0
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display the caller's name as "Function at 0x0 not found". </p> |
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<p><strong>Related references</strong></p> |
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<ul> |
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<li><a href="main_view.htm">Analyzer View</a></li> |
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<li><a href="binary_load.htm">Binary Load</a></li> |
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<li><a href="function_load.htm">Function Load</a></li> |
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<li><a href="thread_load.htm">Thread Load</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> |