Bug 111085 - EDITING: Changing default master slide design slow and CPU hogging
Summary: EDITING: Changing default master slide design slow and CPU hogging
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
(earliest affected)
Hardware: All All
: medium major
Assignee: Not Assigned
Keywords: bibisected, bisected, haveBacktrace, perf
Depends on:
Blocks: Master-Slide
  Show dependency treegraph
Reported: 2017-08-02 15:57 UTC by Telesto
Modified: 2023-04-02 03:24 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Example file (231.60 KB, application/vnd.oasis.opendocument.presentation)
2017-08-02 15:58 UTC, Telesto
Callgrind output from master (8.08 MB, application/x-xz)
2017-08-21 17:33 UTC, Buovjaga
Bibisect log (2.91 KB, text/plain)
2017-10-06 13:48 UTC, Telesto

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Description Telesto 2017-08-02 15:57:59 UTC
Changing default master slide design slow and CPU hogging

Steps to Reproduce:
1. Open the attached file
2. Select all the sheets in the Slide Pane (CTRL+A)
3. Menu Slide -> Slide Master Design
4. Select a slide Design
5. Check Exchange background page & Delete unused backgrounds

Actual Results:  
LibO is unresponsive for a while

Expected Results:
Doesn't seem right to me

Reproducible: Always

User Profile Reset: No

Additional Info:
Build ID: 18f80da7a689ab962735c0f657497b8f1ed4d606
CPU threads: 4; OS: Windows 6.19; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2017-07-28_05:15:48
Locale: nl-NL (nl_NL); Calc: CL

User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Comment 1 Telesto 2017-08-02 15:58:18 UTC
Created attachment 135077 [details]
Example file
Comment 2 Buovjaga 2017-08-21 17:33:38 UTC
Created attachment 135708 [details]
Callgrind output from master


Arch Linux 64-bit, KDE Plasma 5
Build ID: 668ab2e739397e6b095372a1a468bd4f515927b6
CPU threads: 8; OS: Linux 4.12; UI render: default; VCL: kde4; 
Locale: fi-FI (fi_FI.UTF-8); Calc: group
Built on August 20th 2017
Comment 3 Telesto 2017-10-06 13:48:25 UTC
Created attachment 136803 [details]
Bibisect log

$ git bisect good c0829f6dfc7c843aa12d06273011e89d89224de2 is the first bad commit
commit c0829f6dfc7c843aa12d06273011e89d89224de2
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Sun Jul 19 20:25:47 2015 -0700

    source f7ed8b99b628625851fb28ec1a3dead710c8871c

    source f7ed8b99b628625851fb28ec1a3dead710c8871c

:040000 040000 647019972266035e876786cbb62b87588a0e78b3 120e5a8a278b1cb047d878eec8ffe8c03cd317cc M      instdir

author	Caolán McNamara <caolanm@redhat.com>	2015-06-23 15:54:52 (GMT)
committer	Caolán McNamara <caolanm@redhat.com>	2015-06-23 15:57:23 (GMT)
commit f7ed8b99b628625851fb28ec1a3dead710c8871c (patch)
tree 3c1947051b4727e13f8e22f2b518f45e79a5ef60
parent 49002c028da9ca5d7e236ab166104630511b8426 (diff)
allow slide design to affect multiple standard pages
modify this minimally and select all standard pages
selected in the slidesorted, unselect them afterwards
and loop over the selected ones.

This looks like it could do with a rework to disentangle
the master/standard pages stuff, but leave it as is in
this commit


Note: It was broken before, but in a different way. Not all the sheet where converted before; but it was fast. Now it's slow but working fine
Comment 4 Xisco Faulí 2017-10-06 21:43:01 UTC
> Note: It was broken before, but in a different way. Not all the sheet where
> converted before; but it was fast. Now it's slow but working fine

I don't think it's a regression then
Comment 5 QA Administrators 2018-10-07 03:05:34 UTC Comment hidden (obsolete)
Comment 6 Roman Kuznetsov 2018-10-07 11:10:08 UTC
still rerpo in 

Version: (x64)
Build ID: e7d5bad5ae083da12c3ec4a4a8bdc8b42447a242
CPU threads: 4; OS: Windows 10.0; UI render: GL; VCL: win; 
TinderBox: Win-x86_64@42, Branch:master, Time: 2018-10-06_02:55:02
Locale: ru-RU (ru_RU); Calc: threaded

but file-example has 105 (!) slides. I don't know how will be work another presentation software (for example PowerPoint) in this case
Comment 7 QA Administrators 2021-04-01 03:53:26 UTC Comment hidden (obsolete)
Comment 8 QA Administrators 2023-04-02 03:24:06 UTC
Dear Telesto,

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:
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