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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Web Inspector: DOM updates slow when switching between inspector tabs"
href="https://bugs.webkit.org/show_bug.cgi?id=156250">156250</a>
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<th>Summary</th>
<td>Web Inspector: DOM updates slow when switching between inspector tabs
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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>Safari Technology Preview
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>OS X 10.11
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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>jamie@jgwhite.co.uk
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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>Created <span class=""><a href="attachment.cgi?id=275695" name="attach_275695" title="Simple test page">attachment 275695</a> <a href="attachment.cgi?id=275695&action=edit" title="Simple test page">[details]</a></span>
Simple test page
Steps to reproduce:
1. Load the test page
2. Click "Start"
3. Open the inspector with alt+cmd+i (should open on elements tab with body closed)
4. Note ms/frame (~10 on my early 2015 MacBook Air)
5. Switch to console tab
6. Note ms/frame increases (~40 on my machine)
To be clear: I expect some slow down when the elements tab is open, but only modest slow down when the console tab is open.</pre>
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