[Libreoffice-bugs] [Bug 124321] New: Sluggish scrolling and high CPU while scrolling for document with (very) large table (7183 row)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=124321

            Bug ID: 124321
           Summary: Sluggish scrolling and high CPU while scrolling for
                    document with (very) large table (7183 row)
           Product: LibreOffice
           Version: 6.3.0.0.alpha0+ Master
          Hardware: All
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: telesto at surfxs.nl

Description:
Sluggish scrolling and high CPU while scrolling for document with (very) large
table

Slow file-opening is covered by bug 84635. Scrolling issue appears to be new

Steps to Reproduce:
1. Open attachment 107268 (bug  84635). 
2. Scroll when the document shows up/ or wait until all background processing
finished & scroll again



Actual Results:
Slow drawing & high CPU usage

Expected Results:
Smooth scrolling like 4.4.7.2


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.3.0.0.alpha0+
Build ID: 20ea90a557b5bc744fd234e3a20ab1db484cf88b
CPU threads: 4; OS: Windows 6.3; UI render: default; VCL: win; 
TinderBox: Win-x86 at 42, Branch:master, Time: 2019-03-22_03:21:58
Locale: nl-NL (nl_NL); UI-Language: en-US
Calc: threaded

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