Bug 407083

Summary:	Multiple video import jobs running at once on a HDD - hurting performance
Product:	[Applications] kdenlive	Reporter:	b3_1987
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED MOVED
Severity:	normal	CC:	julius.kuenzel, nwc, snd.noise
Priority:	NOR
Version First Reported In:	19.04.0
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
URL:	https://invent.kde.org/multimedia/kdenlive/-/issues/986
Latest Commit:		Version Fixed/Implemented In:	21.08
Sentry Crash Report:

Description b3_1987 2019-04-30 10:06:14 UTC

In Kdenlive 18.12, importing multiple files at once (adding them to the project bin) would result in their being imported one by one. In Kdenlive 19.04, they are imported all at once, even when the files are on a HDD - and so the actual import speed is greatly reduced. I suppose this was done to increase the import speed on SSD drives, but on HDDs this actually hurts the import speed.


STEPS TO REPRODUCE
1. Create a new project.
2. Add to the project bin multiple video files that are on a HDD.

OBSERVED RESULT
The import jobs start all at once.

EXPECTED RESULT
On a HDD, the import jobs should be one-by-one (Only one import job running per HDD drive).

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.15.4
KDE Frameworks Version: 5.57.0
Qt Version: 5.12.3
Kernel Version: 4.19.36-1-MANJARO
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 23,3 GiB of RAM


ADDITIONAL INFORMATION

Comment 1 b3_1987 2019-09-28 17:55:39 UTC

This still hasn't been changed in Kdenlive 19.08. It still imports all the video files at once, which leads to a much slower import. It's also time-consuming to import them by hand one-by-one.

Comment 2 farid 2021-03-12 12:11:10 UTC

Thanks for your report, hopefully we'll get to it soon.

Comment 3 farid 2021-03-12 12:35:56 UTC

Expected for 21.08

https://invent.kde.org/multimedia/kdenlive/-/issues/986

Comment 4 farid 2021-03-27 15:25:33 UTC

Thanks for the report we are tracking this issue over at gitlab. Please follow up on it there.

Comment 5 emohr 2021-04-28 10:00:29 UTC

*** Bug 436294 has been marked as a duplicate of this bug. ***

Comment 6 Julius Künzel 2021-05-16 11:48:35 UTC

This should now be fixed. If you want you can test with the nightly appimage (https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/) or nightly flatpak.

Comment 7 farid 2021-06-22 01:36:58 UTC

(In reply to Julius Künzel from comment #6)
> This should now be fixed. If you want you can test with the nightly appimage
> (https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/) or
> nightly flatpak.

marking as fixed in gitlab