Bug 113350 - Opening the Print Preview for a large document is slower as it has been before
Summary: Opening the Print Preview for a large document is slower as it has been before
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
5.3.0.3 release
Hardware: All Windows (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-10-22 14:23 UTC by Telesto
Modified: 2019-12-18 14:11 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:

Attachments
Example file (29.25 KB, application/vnd.oasis.opendocument.text)
2017-11-06 20:05 UTC, Telesto 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description Telesto 2017-10-22 14:23:58 UTC 
Description:
Opening the Print Preview for a large document is slower as it has been before

Steps to Reproduce:
1. Open Writer & disable the spell checker
2. Open attachment 136841 [details]
3. Wait until the file is fully loaded (Process Monitor: CPU usage back to +/- 0%)
4. Click Print preview (18 seconds with LibO6 and 4-5 seconds with 5.1.0.0.alpha1+


Actual Results:  
18 seconds with LibO6 and 4-5 seconds with 5.1.0.0.alpha1+

Expected Results:
4-5 seconds


Reproducible: Always

User Profile Reset: No

Additional Info:
Found in
Version: 6.0.0.0.alpha0+
Build ID: a4a182e24d2e3e954831a0a7c70a7299f28950cb
CPU threads: 4; OS: Windows 6.3; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2017-10-18_04:47:29
Locale: nl-NL (nl_NL); Calc: CL

but not in
Version: 5.1.0.0.alpha1+
Build ID: 87ac0b1e75a880a68ecb748bd4b34ae5a3d2ae98
Locale: nl-NL (nl_NL)


User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Comment 1 Xisco Faulí 2017-10-26 23:04:56 UTC 
> Version: 6.0.0.0.alpha0+
> Build ID: a4a182e24d2e3e954831a0a7c70a7299f28950cb
> CPU threads: 4; OS: Windows 6.3; UI render: default; 
> TinderBox: Win-x86@42, Branch:master, Time: 2017-10-18_04:47:29
> Locale: nl-NL (nl_NL); Calc: CL

Out of curiosity, is it a daily build ? Could you please check with LibreOffice 6.0 alpha1+ ? I'm wordering if daily builds are slower than production releases...
Comment 2 Xisco Faulí 2017-10-26 23:06:03 UTC 
OTOH, for this kind of tests, it would be good to try to many times, let's say, 10, and have an average number. Sometimes, it might be slower the first time...
Comment 3 Telesto 2017-10-29 16:51:50 UTC 
(In reply to Xisco Faulí from comment #2)
> OTOH, for this kind of tests, it would be good to try to many times, let's
> say, 10, and have an average number. Sometimes, it might be slower the first
> time...

Repro with:
Versie: 5.3.7.2 
Build ID: 6b8ed514a9f8b44d37a1b96673cbbdd077e24059
CPU Threads: 4; Versie besturingssysteem:Windows 6.2; UI Render: standaard; Layout-Engine: nieuw; 
Locale: nl-NL (nl_NL); Calc: CL

No repro with
Versie: 5.3.7.2 
Build ID: 6b8ed514a9f8b44d37a1b96673cbbdd077e24059
CPU Threads: 4; Versie besturingssysteem:Windows 6.2; UI Render: standaard; Layout-Engine: oud; 
Locale: nl-NL (nl_NL); Calc: CL


Tools -> Options -> Advanced: Expert Configuration search for "TextLayoutEngine" and edit to change "new|old" as needed. (Source: bug 89870 comment 32)
Comment 4 Telesto 2017-10-29 17:05:10 UTC 

*** This bug has been marked as a duplicate of bug 112989 ***
Comment 5 Telesto 2017-11-06 20:05:53 UTC 
Created attachment 137580 [details]
Example file

Only as addition
1. Open attached file
2. Scroll down/up with the page down/page up keys and monitor CPU usage
Comment 6 Xisco Faulí 2019-12-18 14:11:20 UTC 
it takes 4.5 seconds in

Version: 6.5.0.0.alpha0+
Build ID: fb1eac64df88baae9f211d052793773686c0e180
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3; 
Locale: ca-ES (ca_ES.UTF-8); UI-Language: en-US
Calc: threaded

and

7 seconds in

Versión: 6.3.4.2 (x86)
Id. de compilación: 60da17e045e08f1793c57c00ba83cdfce946d0aa
Subprocs. CPU: 1; SO: Windows 6.1; Repres. IU: predet.; VCL: win; 
Configuración regional: es-ES (es_ES); Idioma de IU: es-ES
Calc: threaded

Closing as RESOLVED WORKSFORME