[Libreoffice-bugs] [Bug 131595] New: Very slow switching between sheets in the attached xlsx document

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=131595

            Bug ID: 131595
           Summary: Very slow switching between sheets in the attached
                    xlsx document
           Product: LibreOffice
           Version: 6.3.5.2 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: suokunlong at 126.com

Created attachment 159039
  --> https://bugs.documentfoundation.org/attachment.cgi?id=159039&action=edit
Test xlsx file

Steps to reproduce:

1. Open the attached xlsx document.

2. Try to click to second sheet tab (to switch to that tab).
--> Very slow switching to the 2nd tab. After successful switch, the
soffice.bin process eats 3.6 GB of my RAM, while my system RAM is 8 GB.

3. After successfully switched to the second tab, try to click some cells.
--> Very slow navigating between between cells.

Reproduced in
Version: 7.0.0.0.alpha0+
Build ID: f6f37e3341f2a3ad292af1a923dbc33d81e439c9
CPU threads: 4; OS: Linux 5.5; UI render: default; VCL: gtk3; 
Locale: zh-CN (zh_CN.UTF-8); UI-Language: en-US
Calc: threaded

And in 6.3.5.2
Fedora 31 64.

Step 2 and 3 is fast in MSO running in my VirtalBox WinXP guest machine with
only 1 GB total RAM.

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