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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Web Inspector: 11% of time in TimelineRecording spent updating DataGrid that is not visible"
href="https://bugs.webkit.org/show_bug.cgi?id=157612">157612</a>
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<th>Summary</th>
<td>Web Inspector: 11% of time in TimelineRecording spent updating DataGrid that is not visible
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Web Inspector
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>joepeck@webkit.org
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<th>CC</th>
<td>bburg@apple.com, graouts@webkit.org, joepeck@webkit.org, mattbaker@apple.com, nvasilyev@apple.com, timothy@apple.com, webkit-bug-importer@group.apple.com
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<pre>* SUMMARY
11% of time in TimelineRecording spent updating DataGrid that is not visible
DataGrid._updateVisibleRows is taking up 11% of time, including many forced layouts, when the DataGrid is not even visible.
In this case, the TimelineRecordingProgressView is showing, but in other cases, it likely isn't updating unless there is some kind of resize.
* STEPS TO REPRODUCE
1. Inspect theverge.com
2. Show Timeline tab
3. Show Scripts > Call Trees
4. Start Recording
=> Lots of time and forced layouts in DataGrid._updateVisibleRows</pre>
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