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Intel® Trace Analyzer User's Reference Guide

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Intel® <strong>Trace</strong> <strong>Analyzer</strong> <strong>User's</strong> <strong>Reference</strong> <strong>Guide</strong><br />

Figure 4.12. Qualitative Timeline with tagged messages<br />

Similarly, to filter out all messages except those sent by P9, use the Filtering<br />

dialog box (the section called “The Filtering Dialog”) for details regarding the<br />

Filtering dialog box. It results in the following timeline:<br />

Figure 4.13. Qualitative Timeline after filtering<br />

Using tagging in the Qualitative Timeline is an efficient way to find specific events<br />

that occur infrequently. This is because it is guaranteed that a grouped multiple<br />

event is tagged if at least one of the singular events it represents matches the<br />

tagging filter expression.<br />

Quantitative Timeline<br />

The Quantitative Timeline (Views Menu → Charts → Quantitative Timeline) gives<br />

an overview of the parallel behavior of the application. It shows - over time -<br />

how many processes or threads are involved in which function. Along the time<br />

axis, the different functions are presented as vertically stacked color bars. The<br />

height of these bars is proportional to the number of processes that are currently<br />

within the respective function.<br />

Mouse Hover<br />

When the mouse hovers over the Quantitative Timeline, the status bar displays<br />

the present position of the cursor with respect to time. It also shows details<br />

Document number: 318120-002 32

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