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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - High CPU usage when deleting some text with backspace"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=114012">114012</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>High CPU usage when deleting some text with backspace
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>5.1.0.3 release
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Writer
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>telesto@surfxs.nl
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Description:
Spinoff of <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Bump in CPU usage when deleting a bullet row"
   href="show_bug.cgi?id=113091">bug 113091</a> (based on <a href="show_bug.cgi?id=114012#c5">comment 5</a>). The CPU usage is pretty high for
deleting some content with backspace.

This is about the small bump (of around 5%).

Steps to Reproduce:
1. Open <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=137565" name="attach_137565" title="Example file">attachment 137565</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=137565&action=edit" title="Example file">[details]</a></span> file based on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - undo/delete consumes much cpu power and is slow in large documents"
   href="show_bug.cgi?id=113067">bug 113067</a>
2. Place the cursor and the end of the latest word on the first page
3. Hold backspace and monitor CPU usage



Actual Results:  
A bump in CPU usage from 20% (LibO5.0) to 25% (since 5.1)

Expected Results:
Should be less CPU intensive


Reproducible: Always


User Profile Reset: No



Additional Info:
Found in
Version: 6.0.0.0.alpha1+
Build ID: c24c32bf71b8e64bd0d36e511f554e1f6c015842
CPU threads: 4; OS: Windows 6.3; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2017-11-22_23:15:41
Locale: nl-NL (nl_NL); Calc: group threaded

and in 
5.2


User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101
Firefox/52.0</pre>
        </div>
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