[Libreoffice-bugs] [Bug 126788] FILEOPEN: ODT big performance drop for big table from 6.1 to 6.2 to 6.3

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=126788

Paul <paul.jowett at systemic.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|1                           |0
             Status|NEEDINFO                    |UNCONFIRMED

--- Comment #9 from Paul <paul.jowett at systemic.com.au> ---
Hello All.

Apologies, in re-testing this I see some errors in my initial description about
setting up the test case.  I can't seem to edit the original description, so
this is the corrected version (the url was to the wrong test file):

Test file is : table_2178r_26p.odt
and comes from (bug 84635) :
https://bugs.documentfoundation.org/attachment.cgi?id=107266


Test results now (same machine as original - Windows 10, i7):

  6.1.5.2       - 30.5 seconds  (38.2 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)
  6.2.6.1       - 38.9 seconds  (58.2 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)
  6.3.0.4       - 65.5 seconds  (86.2 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)
  6.4.0.0-alpha - 59.8 seconds  (66.2 seconds if
%APPDATA%\Roaming\LibreOfficeDev is cleared first)
  6.4.5.2       - 64.9 seconds  (83.5 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)
  6.5.0.0-alpha - 64.5 seconds  (85.0 seconds if
%APPDATA%\Roaming\LibreOfficeDev is cleared first)
  6.4.6.2       - 65.0 seconds  (85.2 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)
  7.0.0.3       - 64.7 seconds  (79.6 seconds if %APPDATA%\Roaming\LibreOffice
is cleared first)

So, overall since version 6.1.5.2, most versions run this test with performance
a little worse than twice as long.

The same commands were used as per the original description:

Windows Powershell> Measure-Command {.\conv.bat}

where conv.bat converts using a specific install of Libre Office:

  "\Program Files\LibreOffice6.1.5.2\program\soffice.exe" --convert-to pdf
table_2178r_26p.odt --headless

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