Bug 225872

Summary:	when there are lots of huge image files in a folder gwenview fills RAM during thumbnail generation
Product:	[Applications] gwenview	Reporter:	BORGULYA Gábor <bugs2>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	benni, bugs.kde.org
Priority:	NOR	Keywords:	triaged
Version First Reported In:	2.3
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description BORGULYA Gábor 2010-02-08 00:53:45 UTC

Version:            (using KDE 4.3.2)
OS:                Linux
Installed from:    Ubuntu Packages

How to reproduce:
1. prepare a folder with lots of huge image files (I have 520 Gimp xcf files, about 14M each)
2. open the folder with gwenview
3. thumbnails appear slowly one by one, memory gets filled, then swap gets filled
4. openoffice, firefox and finally gwenview are killed by the OS.

Expected behaviour:
Gwenview should prepare the thumbnails using a minimal memory footprint.

The microprocessor usage could be optimised, too. Currently I need to "nice gwenview" otherviwe my system barely responds during thumbnail generation.

Comment 1 Benni Hill 2013-04-03 16:36:08 UTC

Is this still an issue with gwenview 4.10.0 (or newer)?

Comment 2 Henrik Ala-Uotila 2016-12-19 19:30:35 UTC

I ran into this issue recently and looked for existing bugs before filing a new one. This is now occuring both with gwenview 16.08.2 in Fedora 24 as well as gwenview 4.13.1 in Ubuntu 14.04.5.

As soon as I open my phone camera's photo directory(with some 4400 images), gwenview's memory usage starts to grow to the point that the system gets choked and eventually the OOM killer kicks in.

It appears as if browsing a directory loads all thumbnails into RAM regardless of the number of entries within that directory... for now I worked around this limitation by moving the images into smaller subdirectories.

Is there anything else I could provide to help at narrowing down the issue?

Comment 3 Andrew Crouthamel 2018-09-26 22:13:20 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 4 Andrew Crouthamel 2018-10-27 02:47:49 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!