[Libreoffice-bugs] [Bug 113158] LO calc scrolling slow; dragging to select cells slow, left and right arrows slow. Apache Open Office fast.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113158

--- Comment #2 from Simon Noble <simon at simonhnoble.plus.com> ---
Created attachment 137051
  --> https://bugs.documentfoundation.org/attachment.cgi?id=137051&action=edit
Sample spreadsheet that can demonstrate the unresponsiveness

Bug 113158

File attached:    A sample document showing slow response: scrolling, selecting
cells and dragging across spreadsheet, and traversing with left/right arrows
across spreadsheet.  Sporadic performance from moderately affected to badly
impaired. Apache Open Office is lightning fast and appears not afflicted.  

It's possibly a memory/CPU resource issue - it's worse when an anti-virus scan
is running.  LibreOffice can be slow and unresponsive in comparison to Apache
Open Office.  I have a feeling it depends on the background processes that are
running.  LibreOffice may be very hungry.

I am wondering if Apache OpenOffice does the cell selecting and any formula
recalculating sequentially as serial tasks and LibreOffice does them combined.

The Dell 755 (Windows 10 Pro 64-bit)  doesn't prompt that there is a low
virtual memory and Process Lasso (A CPU optimizer that improves mouse
responsiveness ) or Task Manager doesn't show a huge CPU or RAM problem. 

Apache Open Office runs rings around LibreOffice in this task.  There is
criticism appearing on the Internet. 

The sample spreadsheet is small; if a "Find and Replace" dialogue box is placed
on the spreadsheet it increases the unresponsiveness of LibreOffice as the
bordered cell is traversed across and below it.  

Apache OpenOffice developers designed a super product and Java frustrated it. I
use an old version for the letter wizards.  It's tough on LibreOffice.  


Puzzling!

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