| author | Matti Laitinen <matti.t.laitinen@nokia.com> |
| Tue, 24 Aug 2010 12:16:27 +0300 | |
| changeset 15 | 0367d2db2c06 |
| parent 6 | f65f740e69f9 |
| permissions | -rw-r--r-- |
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AnalyzeTool Carbide extension 1.10.0
Matti Laitinen <matti.t.laitinen@nokia.com>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 1.0 Transitional//EN"> |
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<html> |
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AnalyzeTool Carbide extension 1.10.0
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<head> |
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AnalyzeTool Carbide extension 1.10.0
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<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> |
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AnalyzeTool Carbide extension 1.10.0
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<title>Viewing AnalyzeTool memory activity graphs</title> |
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AnalyzeTool Carbide extension 1.10.0
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<link href="../../book.css" type="text/css" rel="StyleSheet"> |
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AnalyzeTool Carbide extension 1.10.0
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</head> |
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AnalyzeTool Carbide extension 1.10.0
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<body> |
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AnalyzeTool Carbide extension 1.10.0
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<h2>Viewing memory activity graph</h2> |
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AnalyzeTool Carbide extension 1.10.0
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<p>This section describe the AnalyzeTool Graph tab and gives instructions on |
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using it. The following subsections are included:</p> |
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<ul> |
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AnalyzeTool Carbide extension 1.10.0
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<li><a href="#Descriptio">Description of graph</a></li> |
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AnalyzeTool Carbide extension 1.10.0
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<li><a href="#Setting">Setting thresholds for displayed allocations</a></li> |
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<li><a href="#Navigating">Navigating the graph</a></li> |
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<li><a href="#Eclipse">The Eclipse Properties View</a></li> |
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</ul> |
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<p>Memory activity graphs are generated automatically after the data capturing |
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is stopped. Alternatively, an existing trace file can be opened to view memory |
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activity graphs. For more information, see <a |
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href="..\concepts\datafile.htm">AnalyzeTool files</a>.</p> |
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<p>There are two options for opening a memory analysis data file:</p> |
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<ul> |
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<li>From the <b>Project pop-up</b> menu, select <b>AnalyzeTool</b> > |
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<b>Open and analyze data file</b>.</li> |
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<li>In the <b>AnalyzeTool</b> view, click the <b>Open and analyze data |
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file</b> button.</li> |
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</ul> |
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<p>Memory activity graphs are displayed in the <b>AnalyzeTool</b> window on the |
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0367d2db2c06
AnalyzeTool Carbide extension 1.10.0
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<b>Graph</b> tab. After the data has loaded, select a process in the |
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<b>Process</b> drop down box to view its memory activity. </p> |
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<p><img src="../images/graph_view.png" alt="AnalyzeTool graph tab"></p> |
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<p class="figure" |
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style="text-align:left;margin-left:0;margin-right:auto;">Figure 1. Example |
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graph</p> |
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<h3 id="Descriptio">Description of graph</h3> |
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<p>The graph shows the cumulative memory of the given process over time. Each |
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memory operation is marked with a dot on the graph as follows: </p> |
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<ul> |
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<li><font color="blue">Alloc</font>: A memory allocation is marked in blue if |
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it is freed during the lifetime of the process.</li> |
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<li><font color="red">Leak</font>: A memory allocation is marked in red with |
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a vertical line going down if it is not freed during the lifetime of the |
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process (also known as <em>leak</em>).</li> |
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<li><font color="green">Free</font>: A memory free is marked in green.</li> |
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</ul> |
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<p>Hovering the mouse over a memory operation shows a tooltip with relevant |
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information. A memory operation can also be selected with a mouse click. This |
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will highlight the memory operation on the graph, and more detailed information |
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is shown in the Eclipse Properties view. The Eclipse Properties view may |
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include callstack information if available. </p> |
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<p><b>Tip</b>: Use the <b>arrow left</b> and <b>arrow right</b> keys to move to |
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the next or previous memory operation.</p> |
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<p>When a memory operation is selected, related memory operations are |
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highlighted on the graph. For example, when an alloc is selected, its |
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associated free memory is marked on the graph with a green line going down.</p> |
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<h3 id="Setting">Setting thresholds for displayed allocations</h3> |
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<p>You can set a threshold for the minimum or maximum size of allocation |
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displayed in the graph. To do this, click the <img |
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src="../images/icon_graph_settings.png"> on the toolbar to open open the graph |
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settings dialog. </p> |
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<p><strong>Note</strong> that this option is not available in the optimized |
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drawing mode, where only leaks are shown due to high number of memory |
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operations.</p> |
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<p><img src="../images/graph_settings_dialog.png"></p> |
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<p class="figure" |
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style="text-align:left;margin-left:0;margin-right:auto;">Figure 2. Graph |
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Settings dialog</p> |
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<ol> |
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<li>Choose one of the radio buttons:</li> |
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</ol> |
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<ul> |
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<li><strong>above or equals the threshold</strong> to display memory |
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allocations which size is equal or above the set threshold, or </li> |
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<li><strong>below or equals the threshold</strong> to display memory |
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allocations which size is equal of below the set threshold. </li> |
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</ul> |
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<ul> |
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<li>Type in the threshold. You can give the threshold in bytes, kilobytes or |
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megabytes (B, kB, MB).</li> |
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<li>Click Ok. The Graph will now display only the memory allocations within |
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the set threshold. </li> |
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</ul> |
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<p>The figure below shows the same graph as in Figure 1. above, but now with |
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threshold setting of 4kB.</p> |
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<p><img src="../images/graph_view_threshold.png" |
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alt="AnalyzeTool graph with threshold"></p> |
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<p class="figure" |
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style="text-align:left;margin-left:0;margin-right:auto;">Figure 3. Example |
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graph with threshold set at 4 kB</p> |
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111 |
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<p>As you can see in Figure 3 above, memory leaks are always show on the graph, |
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regardless of the threshold settings.</p> |
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<p>The threshold setting is data file specific. So, if you choose another date |
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file, there will be no thresholds applied to it by default, but you need to set |
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them in the <strong>Graph Settings</strong> dialog.</p> |
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<h3 id="Navigating">Navigating the graph</h3> |
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<ul> |
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<li><b>Zoom in:</b> Select a region in the graph with your mouse (click the |
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left edge and drag to the right edge of the region to be zoomed in).</li> |
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<li><b>Zoom out:</b> Right-click with the mouse.</li> |
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<li><b>Scroll:</b> Use the scroll bar. Alternatively, select a memory |
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operation with your mouse and use the <b>arrow right</b> or <b>arrow |
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left</b> keys to bring the next or previous into view.</li> |
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</ul> |
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<h3 id="Eclipse">The Eclipse Properties View</h3> |
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<p>When a single memory allocation is selected on the graph, the Eclipse |
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Properties view shows detailed information about the memory operation. If the |
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Eclipse Properties view is not already open, it can be opened by clicking the |
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<img src="../images/properties.png"> icon on the Graph tab, or by selecting |
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<b>Windows</b> > <b>Show View</b> > <b>Properties</b>. </p> |
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<img src="../images/properties_view.png" alt="AnalyzeTool Properties View"> |
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<p class="figure" |
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style="text-align:left;margin-left:0;margin-right:auto;">Figure 4. Properties |
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view</p> |
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141 |
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<p>Double-clicking an item in the callstack opens the appropriate source code |
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file to that code line, provided the source code file can be found in the |
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selected project in Carbide.c++.</p> |
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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. 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> |