[Libreoffice-bugs] [Bug 114012] New: High CPU usage when deleting some text with backspace

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=114012

            Bug ID: 114012
           Summary: High CPU usage when deleting some text with backspace
           Product: LibreOffice
           Version: 5.1.0.3 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: telesto at surfxs.nl

Description:
Spinoff of bug 113091 (based on comment 5). 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 attachment 137565 file based on bug 113067
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 at 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

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