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      <base href="https://bugs.documentfoundation.org/">
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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 viewing spreadsheet"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=122713">122713</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>High CPU usage when viewing spreadsheet
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>6.3.0.0.alpha0+ Master
          </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>Keywords</th>
          <td>bibisected, bisected, regression
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>Calc
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>todventtu@suomi24.fi
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>Armin.Le.Grand@me.com
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>113510
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=148314" name="attach_148314" title="File causing CPU hit">attachment 148314</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=148314&action=edit" title="File causing CPU hit">[details]</a></span>
File causing CPU hit

Attachment is taken from <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WORKSFORME - Calc - Errors in function "Conditional Formatting" in Calc, some formatting to save or modify the file ...."
   href="show_bug.cgi?id=60118">bug 60118</a>, re-attached for convenience as the original
was an archive.

I sometimes observed that with my wide desktop screen, having Calc maximized
prevented the CPU hammering. Thus, it is best to resize to a size where you
don't see much of the grey background on the right.

Bibisected with win32-6.3 to
<a href="https://gerrit.libreoffice.org/plugins/gitiles/core/+/d464d505fbf6e53a38afdd3661d320fac8c760d6%5E!/">https://gerrit.libreoffice.org/plugins/gitiles/core/+/d464d505fbf6e53a38afdd3661d320fac8c760d6%5E!/</a>

Refactor calc non-linear ViewToDevice transform

Adding Cc: to Armin Le Grand

Same commit blamed for <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - button flashing"
   href="show_bug.cgi?id=121963">bug 121963</a>

Repro also on Linux.

Arch Linux 64-bit
Version: 6.3.0.0.alpha0+
Build ID: 6e3c4ae8bca898700cde9caaff43c3a8a61eebc2
CPU threads: 8; OS: Linux 4.20; UI render: default; VCL: gtk3; 
Locale: fi-FI (fi_FI.UTF-8); UI-Language: en-US
Calc: threaded
Built on 13 January 2019</pre>
        </div>
      </p>

        <div id="referenced">
          <hr style="border: 1px dashed #969696">
          <b>Referenced Bugs:</b>
          <ul>
              <li>
                [<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [META] Bugs that cause CPU to run at 100%"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=113510">Bug 113510</a>] [META] Bugs that cause CPU to run at 100%
              </li>
          </ul>
        </div>
        <br>

      <hr>
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          <li>You are the assignee for the bug.</li>
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