https://bugs.kde.org/show_bug.cgi?id=373015
Bug ID: 373015
Summary: With many files selected, viewer is late to start
Product: dolphin
Version: 16.08.2
Platform: openSUSE RPMs
OS: Linux
Status: UNCONFIRMED
Severity: minor
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Sometimes there are many jpeg files in a folder, let us say, thousands.
I start Dolphin and select many of them to view in a photo viewer, let us say,
500 photos. The selection's background changes color. Then I right-click,
select "Open with", select "Gwenview" or other viewer.
Do you think the Gwenview starts?
Instead of the viewer starting and showing me the first picture, a very
intensive disk activity begins. For 500 photos, it lasts 30 seconds. For
thousands of photos, it takes minutes! Likely, during this time thumbnailing or
caching is occurring.
Then only the viewer starts and from there on works correctly.
Besides, there is a few seconds delay after the right click, before the popup
dialog to select the viewer appears.
It wasn't so a year ago or so, with earlier versions of openSUSE. The viewer
there was beginning to show the first image immediately.
The user shall have some control over thumbnailing or caching. I don't want to
wait for minutes until an activity that I don't need is finished. The
thumbnailng or caching can occur during viewing of the first few photos, or
shall be disable-able. I haven't seen any hard drive activity more intense than
this; I am worried about the disk.
My home holder is on a mechanical hard drive. The OS and swap are on a SSD. The
viewer's starting is different when it is started from command line: gwenview
my_pattern*.jpg
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