Bug 155286 - Scrolling sheet slow and sluggish with (hidden) multi-line cell content (optimal row height disabled)
Summary: Scrolling sheet slow and sluggish with (hidden) multi-line cell content (opti...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
4.3.0.4 release
Hardware: All All
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: perf
: 155256 (view as bug list)
Depends on:
Blocks: Scrolling-PageUpDown
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Reported: 2023-05-13 18:29 UTC by Telesto
Modified: 2023-07-21 18:22 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:

Attachments
Sample (133.87 KB, application/vnd.oasis.opendocument.spreadsheet)
2023-05-13 18:30 UTC, Telesto 		Details
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Description Telesto 2023-05-13 18:29:59 UTC 
Description:
Scrolling sheet slow and sluggish with (hidden) multi-line cell content (optimal row height disabled)

Steps to Reproduce:
1. Open the attached file
2. Scroll down (notice it's slow). More objective measure, monitor CPU usage

Actual Results:
Laggy scrolling/high CPU usage

Expected Results:
Smooth scrolling


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: 99a88c9e55872214ce01d89447d18708e47e956b
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL threaded
Comment 1 Telesto 2023-05-13 18:30:27 UTC 
Created attachment 187251 [details]
Sample
Comment 2 Telesto 2023-05-18 15:12:27 UTC 
*** Bug 155256 has been marked as a duplicate of this bug. ***
Comment 3 Buovjaga 2023-07-10 14:24:09 UTC 
41% CPU with the document, 12% with a blank one.

Same type of result with 7.0, 6.0, 4.3.

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 81726f5af5fda25f0d92ffc8458d7f24eb16f408
CPU threads: 2; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: en-US (en_FI); UI: en-US
Calc: threaded