[Libreoffice-bugs] [Bug 130431] New: Horrible drawinglayer dashed line performance

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=130431

            Bug ID: 130431
           Summary: Horrible drawinglayer dashed line performance
           Product: LibreOffice
           Version: 6.4.0.0.alpha0+
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: graphics stack
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: michael.meeks at collabora.com

Created attachment 157644
  --> https://bugs.documentfoundation.org/attachment.cgi?id=157644&action=edit
a photo

Another instance of the dashed line problems - comment on recent FOSDEM Heise -
in German about this despairing about performance of LibreOffice:

wget
https://github.com/oliworx/LibreOffice-vs-OpenOffice/raw/master/Kassenbuch_2018.ods

This spreadsheet renders horribly slowly despite being rather trivial. The
problem it turns out is the fine dotted line borders used in a few places.

I attach a perf top flamegraph picture - though the load this puts on the X
server is also quite significant.

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