Bug 122713

Summary:	High CPU usage when viewing spreadsheet
Product:	LibreOffice	Reporter:	Buovjaga <ilmari.lauhakangas>
Component:	Calc	Assignee:	Not Assigned <libreoffice-bugs>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	Armin.Le.Grand, xiscofauli, xv3247
Priority:	medium	Keywords:	bibisected, bisected, regression
Version:	6.3.0.0.alpha0+
Hardware:	All
OS:	All
See Also:	https://bugs.documentfoundation.org/show_bug.cgi?id=121963 https://bugs.documentfoundation.org/show_bug.cgi?id=123505
Whiteboard:
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	128256, 136524, 113510
Attachments:	File causing CPU hit

Description Buovjaga 2019-01-14 20:10:02 UTC

Created attachment 148314 [details]
File causing CPU hit

Attachment is taken from bug 60118, re-attached for convenience as the original was an archive.

I sometimes observed that with my wide desktop screen, having Calc maximized prevented the CPU hammering. Thus, it is best to resize to a size where you don't see much of the grey background on the right.

Bibisected with win32-6.3 to https://gerrit.libreoffice.org/plugins/gitiles/core/+/d464d505fbf6e53a38afdd3661d320fac8c760d6%5E!/

Refactor calc non-linear ViewToDevice transform

Adding Cc: to Armin Le Grand

Same commit blamed for bug 121963

Repro also on Linux.

Arch Linux 64-bit
Version: 6.3.0.0.alpha0+
Build ID: 6e3c4ae8bca898700cde9caaff43c3a8a61eebc2
CPU threads: 8; OS: Linux 4.20; UI render: default; VCL: gtk3; 
Locale: fi-FI (fi_FI.UTF-8); UI-Language: en-US
Calc: threaded
Built on 13 January 2019

Comment 1 Xavier Van Wijmeersch 2019-01-15 09:46:36 UTC

confirm with

Version: 6.3.0.0.alpha0+
Build ID: 2e189c2464de007b3d59ba37d4f3f1cfbe5b480c
CPU threads: 2; OS: Linux 4.19; UI render: default; VCL: gtk2; 
Locale: nl-BE (en_US.UTF-8); UI-Language: en-US
Calc: threaded

Comment 2 Xisco Faulí 2019-10-30 14:36:53 UTC

This is a dupe of bug 121963. https://gerrit.libreoffice.org/#/c/81756/ fixes it...

*** This bug has been marked as a duplicate of bug 121963 ***