<html>
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      <base href="https://bugs.documentfoundation.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - Sluggish scrolling for a large complex document"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=120102">120102</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Sluggish scrolling for a large complex document
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>5.0.0.5 release
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows (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:
Sluggish scrolling for a large complex document (source: <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#c7">bug 113091 comment 7</a>)

Steps to Reproduce:
Another example bibisected to the same commit range:
1. Open <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=137973" name="attach_137973" title="Obfuscated sample long doc">attachment 137973</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=137973&action=edit" title="Obfuscated sample long doc">[details]</a></span> (<a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - Writer loses last user event if auto-save triggers nearly at the same time"
   href="show_bug.cgi?id=106208">bug 106208</a>)
2. Scroll down with scroll wheel (sluggish at some parts and 100% CPU usage for
a single core)

Actual Results:
Slow scrolling

Expected Results:
Smooth scrolling (as before)


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.2.0.0.alpha0+
Build ID: 7d242f3bd7277236046f90d3f32b9792fd8ea97b
CPU threads: 4; OS: Windows 6.3; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2018-09-18_23:43:19
Locale: nl-NL (nl_NL); Calc: CL

Bibiseced to the following range:

~/bibisect-win32-5.0
$ git bisect bad
3f4cc8db52a676c8bb37ebcf9996e73ef3240f0d is the first bad commit
commit 3f4cc8db52a676c8bb37ebcf9996e73ef3240f0d
Author: Norbert Thiebaud <<a href="mailto:nthiebaud@gmail.com">nthiebaud@gmail.com</a>>
Date:   Mon May 25 22:26:52 2015 -0500

    source sha:9b4abcd1c45a646a1ac9120fe1c489ba6bb44e95

    source sha:9b4abcd1c45a646a1ac9120fe1c489ba6bb44e95
    source sha:acaafc03e623ac25d4408605f34d50618926c5d0
    source sha:567f51192483059ec57c16a6045141746d4b01f9
    source sha:ef6f2490a697e7c23fea40c567f751db05f1bbbf
    source sha:2c0189a8a3aeb3668bf6de1ea1958ba475b80a38
    source sha:3da65dc8982167517f19e80a288b049118bc3d23
    source sha:2a0b6705724c4ea65b56eb0f45bccfa253d9fdc2
    source sha:59619dbe971852d5cd35dcc3f78eda9bebeb99aa
    source sha:e7c2b4b981b9b43c31fa442d5596b7a765dbe699
    source sha:6f4dc6af39ecf2f90155205ad097601a8b2f602c
    source sha:ca3700c42238e71684ec1d5f5eacaea4b1ca3b30
    source sha:8da61f23384c7f3f2850a6362765506e4e078862
    source sha:d05a64df34fd143670cb939b72abfb32d6b714c7
    source sha:01f406bc28f53acc5a2734af637aa8074a5d1813
    source sha:b6bb2e9315c9bc3338eaf066df40a969eb4774aa
    source sha:d851e1e3c29afd3315cc763144c6eb92fbef5054
    source sha:7e2a0df7e7b4551698d1d7172ef12ad1e0fd8826
    source sha:b11dba5be288ca5aaed1403093033708f7091c42
    source sha:49439d4a67b06227e56a2855c856e3482323a28a
    source sha:ff52f4e417eb4de5e85388a48a650429b1880762
    source sha:d411dca1ea6bfccb7090d4ceab15119253cac5bf
    source sha:f384496d125255a94bfd5978e0cbe44d6d046adb
    source sha:f33d6800fbdc42aa75477e31be0bba5a4a5a52c1
    source sha:8f9b0c869222e57f738bc25d51cc6364e3c6a65a
    source sha:00717355c2d10bacbae46941b82247d74fd89108
    source sha:2d95bc0510d43c11bb3bd03f590e24ba3d7ca30f
    source sha:ddd4a787ebde1b47e5ddfbd5995e2a0fe6b22ee2
    source sha:0e10b34342bd7b94b69f2eac8c9b1df89a2725f3
    source sha:b380220bc1404ed5a9daa1a28f70696e84543f61
    source sha:5bd1106c3758c8cb0c19b09799970440501fde02
    source sha:3f64e7c16a63fdc330e108cd74182c615d229bb6
    source sha:4c3cea26b84cc70a67ff4eda99b842d8786a3628
    source sha:256c5c3f28ef70b70d38e2e07dfca4baab654612
    source sha:57656eb1fae5ae6c4d3b7542a385a93ff434e4e7
    source sha:49524c6dcf04b9dadef8d2b084cf26abcf70b8a9
    source sha:826143684d2697a8620373dce18fa5f24332d5cb
    source sha:d8305248f687ffa522b56955508d82d60ad5b8c6
    source sha:a74efa665c8199899cd778900de686e2b8710fee
    source sha:e6e8a060ecc6e4fd51cfe88e00d841d546ed5915

:040000 040000 ad77b1a03396af9c8460d94e13cf1c28e5bf54bc
dbf71bf6a72509169933f08eb57842c37a266627 M      instdir</pre>
        </div>
      </p>


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