Bug 147284

Summary:	Time required to export a large document to PDF has doubled for Latin (Win?)
Product:	LibreOffice	Reporter:	Telesto <telesto>
Component:	Printing and PDF export	Assignee:	Not Assigned <libreoffice-bugs>
Status:	VERIFIED FIXED
Severity:	normal	CC:	79045_79045, dgp-mail, himajin100000, l.lunak, suokunlong
Priority:	medium
Version:	5.3.0.3 release
Hardware:	All
OS:	Windows (All)
Whiteboard:	target:7.4.0
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	103378

Description Telesto 2022-02-08 13:07:05 UTC

Description:
Time required to export a large document has doubled for Latin

Steps to Reproduce:
1. Open attachment 136841 [details] (bug 112989)
2. Press PDF button in toolbar and save the export somewhere (measure time required to export excl. repagination)

Actual Results:
7.4 -> 40 seconds
4.4.7.2 -> 20 seconds

Expected Results:
20 seconds


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.4.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: ca657b98e49eb2282775f7919827062a7a0b4bfe
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

Comment 1 Dieter 2022-02-22 18:59:49 UTC

I confirm it with

Version: 7.3.0.3 (x64) / LibreOffice Community
Build ID: 0f246aa12d0eee4a0f7adcefbf7c878fc2238db3
CPU threads: 4; OS: Windows 10.0 Build 19044; UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: en-GB
Calc: CL

It tokk around 65 seconds.

Comment 2 Commit Notification 2022-03-15 13:40:31 UTC

Luboš Luňák committed a patch related to this issue.
It has been pushed to "master":

https://git.libreoffice.org/core/commit/baf6c57496fe38c5ee4ab34829aaf4d4d6598d28

faster comparison of very long strings (tdf#147284)

It will be available in 7.4.0.

The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
https://wiki.documentfoundation.org/Testing_Daily_Builds

Affected users are encouraged to test the fix and report feedback.

Comment 3 Telesto 2022-04-05 14:58:10 UTC

23 seconds with same system.. nice improvement 
Version: 7.4.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: cf4d5ed026c8799a70432a832a8a707c2e316216
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 Jumbo

Comment 4 Luboš Luňák 2022-04-14 08:09:30 UTC

I think this is now good enough for a document with 3000 pages.

Comment 5 Dieter 2022-05-07 14:06:22 UTC

(In reply to Telesto from comment #3)
> 23 seconds with same system.. nice improvement 

=> VERIFIED