[Libreoffice-bugs] [Bug 108611] New: EDITING: Hovering through different font with preview enabled is slowish and CPU hogging

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108611

            Bug ID: 108611
           Summary: EDITING: Hovering through different font with preview
                    enabled is slowish and CPU hogging
           Product: LibreOffice
           Version: 6.0.0.0.alpha0+ Master
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: telesto at surfxs.nl

Description:
Hovering through different font with preview enabled is slowish and CPU hogging



Steps to Reproduce:
1. Open attached file
2. Select A1 A234
3. Hoover through the different font with font preview enabled
4. Monitor CPU consumption and snappiness

Actual Results:  
In 5.2.4.2 it feels snappy and fast (CPU usage around 10%)
With 6.0.0.0 preview is lagging a bit and CPU usage is around 20%)

Expected Results:
Behavior like 5.2.4.2


Reproducible: Always

User Profile Reset: No

Additional Info:
Found in
Version: 6.0.0.0.alpha0+
Build ID: cbf371e07fd5dea1ea08a1f299360d1273961ebd
CPU threads: 4; OS: Windows 6.19; UI render: default; 
TinderBox: Win-x86 at 42, Branch:master, Time: 2017-06-14_23:13:57
Locale: nl-NL (nl_NL); Calc: CL

but not in
Versie: 5.2.4.2 
Build ID: 3d5603e1122f0f102b62521720ab13a38a4e0eb0
CPU Threads: 4; Versie besturingssysteem:Windows 6.2; UI Render: standaard; 
Locale: nl-NL (nl_NL); Calc: CL

It's keeps trying a non available file:
Z:\LibreOfficeDev 6\program\OpenOffice\char_en.brk      
Z:\LibreOfficeDev 6\program\OpenOffice\char.brk 


User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:45.0) Gecko/20100101
Firefox/45.0

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