Bug 153542 - Libreoffice calc 7.5 very slow and unresponsive when zooming in out (wheel mouse) on large spreadsheet under Debian
Summary: Libreoffice calc 7.5 very slow and unresponsive when zooming in out (wheel mo...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
7.5.0.3 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Zoom Performance
  Show dependency treegraph
 
Reported: 2023-02-11 07:22 UTC by thurston.more@laposte.net
Modified: 2025-05-18 03:11 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
a very basic file, with large number of cells (with specific narrow column size). (410.44 KB, application/vnd.oasis.opendocument.spreadsheet)
2023-02-11 07:24 UTC, thurston.more@laposte.net
Details

Note You need to log in before you can comment on or make changes to this bug.
Description thurston.more@laposte.net 2023-02-11 07:22:52 UTC
Description:
I am using a quite heavy spreadsheet for years now. (150x150) rows / columns. When i try to zoom in and out, i notice quite long delay (response), which is very unconfortable. This was not the case with previous version or at least not that visible.

Steps to Reproduce:
1. create a file with large number of columns
2. an example of a file you can use is here: https://edms.cern.ch/document/2443119/1, just download it and try to open it.
3. when opened, try to zoom in and out.

Actual Results:
libreoffice starts to be unresponsive, or shows a lot of delay.

Expected Results:
normally zoom in and out. (this is what is expected).


Reproducible: Always


User Profile Reset: No

Additional Info:
This bug reminds me of one encountered in 2020, which was solved. (at least it is not the first time i encounter this behaviour).
Comment 1 thurston.more@laposte.net 2023-02-11 07:24:26 UTC
Created attachment 185310 [details]
a very basic file, with large number of cells (with specific narrow column size).
Comment 2 thurston.more@laposte.net 2023-02-11 07:34:17 UTC
Testing with stable version (7.4.5), the behaviour is the same, with file very slow to zoom in out. I am pretty sure this bug was solved in earlier version, and reappears now, since this exact challenging file had been transmitted to LibreOffice 2 years ago, and some improvements were made... which seems lost again. Hope to help
Comment 3 thurston.more@laposte.net 2023-02-11 07:58:17 UTC
i have the feeling we are back to this bug described here:
https://ask.libreoffice.org/t/libreoffice-calc-7-0-very-slow/55970/17
Comment 4 Roman Kuznetsov 2023-02-11 09:39:11 UTC
Please write here info from LibreOffice's Help->ABout dialog (there is the button Copy there, use it)
Comment 5 thurston.more@laposte.net 2023-02-11 14:08:10 UTC
Version: 7.5.0.3 (X86_64) / LibreOffice Community
Build ID: c21113d003cd3efa8c53188764377a8272d9d6de
CPU threads: 8; OS: Linux 6.0; UI render: default; VCL: gtk3
Locale: en-GB (fr_FR.UTF-8); UI: en-US
Calc: threaded
Comment 6 thurston.more@laposte.net 2023-02-11 19:22:56 UTC
i wonder if the issue is not described in detail here, since at that time, the problem was solved.
https://gerrit.libreoffice.org/c/core/+/110538
cheers
Comment 7 QA Administrators 2023-02-12 03:21:17 UTC Comment hidden (obsolete)
Comment 8 Roman Kuznetsov 2023-02-12 17:16:42 UTC
I confirm some delay when you try to scale the sheet in the attached file.
But if you set up the column widht to nornal/default - you shouldn't see the problem with the scaling

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: d8e6b488ceaff7c88856ebcfcfec14d2d8cd7652
CPU threads: 16; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: ru-RU (ru_RU); UI: ru-RU
Calc: CL threaded

funny, if I disable Skia then LO can't open the file and uses 100% CPU instead
Comment 9 thurston.more@laposte.net 2023-02-13 14:52:05 UTC
(In reply to Roman Kuznetsov from comment #8)
> I confirm some delay when you try to scale the sheet in the attached file.
> But if you set up the column widht to nornal/default - you shouldn't see the
> problem with the scaling
> 
> Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
> Build ID: d8e6b488ceaff7c88856ebcfcfec14d2d8cd7652
> CPU threads: 16; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL:
> win
> Locale: ru-RU (ru_RU); UI: ru-RU
> Calc: CL threaded
> 
> funny, if I disable Skia then LO can't open the file and uses 100% CPU
> instead

Thanks. And yes, i know that with normal width, the problem is less severe. I am almost sure the problem was diagnosed by collabora team, with certainly some interesting points here: https://gerrit.libreoffice.org/c/core/+/110538
cheers
Y
Comment 10 QA Administrators 2025-05-18 03:11:25 UTC
Dear thurston.more@laposte.net,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.
 
If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


Feel free to come ask questions or to say hello in our QA chat: https://web.libera.chat/?settings=#libreoffice-qa

Thank you for helping us make LibreOffice even better for everyone!

Warm Regards,
QA Team

MassPing-UntouchedBug