Bug 1235033 - High CPU usage by plasmashell while downloading files with Konqueror
Summary: High CPU usage by plasmashell while downloading files with Konqueror
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: plasma-workspace
Version: 22
Hardware: x86_64
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: KDE SIG
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-06-23 20:11 UTC by Giulio 'juliuxpigface'
Modified: 2015-08-12 06:57 UTC (History)
6 users (show)

Fixed In Version: kf5-kdeclarative-5.12.0-2.fc22
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-08-05 22:29:21 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Giulio 'juliuxpigface' 2015-06-23 20:11:28 UTC
Description of problem:
While downloading with Konqueror, the process plasmashell uses a large amount of CPU (about 80%). Since my test system is a kvm-qemu guest, the host's temperatures shift to 95° (according to lm-sensors). I've seen similar values before only while installing via Anaconda.

Please note that perhaps this is a normal behavior, but I'm reporting this since I'm not sure enough.

Version-Release number of selected component (if applicable):
plasma-desktop-5.3.1-6.fc22.x86_64
plasma-workspace-5.3.1-5.fc22.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Try to download a large file via Konqueror (for example, the latest linux kernel tarball).
2. Take a look to CPU usage with top while downloading.

Actual results:
1. There is a high CPU usage by the process plasmashell.

Expected results:
1. plasmashell should not stress the CPU.

Additional info:
Downloading the same package with Firefox, only rises the process 'firefox' to ~15% of CPU usage.

Comment 1 Giulio 'juliuxpigface' 2015-07-12 14:51:48 UTC
One more additional info: this behavior persists even if I pause the download from the taskbar.

The CPU's usage of plasmashell calms down only when the download is actually stopped or completed.

Comment 2 Fedora Update System 2015-07-30 16:01:00 UTC
kf5-kdeclarative-5.12.0-2.fc22 has been submitted as an update for Fedora 22.
https://admin.fedoraproject.org/updates/kf5-kdeclarative-5.12.0-2.fc22

Comment 3 Fedora Update System 2015-07-30 16:03:58 UTC
kf5-kdeclarative-5.12.0-2.fc21 has been submitted as an update for Fedora 21.
https://admin.fedoraproject.org/updates/kf5-kdeclarative-5.12.0-2.fc21

Comment 4 Fedora Update System 2015-07-31 07:57:35 UTC
Package kf5-kdeclarative-5.12.0-2.fc22:
* should fix your issue,
* was pushed to the Fedora 22 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing kf5-kdeclarative-5.12.0-2.fc22'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-12448/kf5-kdeclarative-5.12.0-2.fc22
then log in and leave karma (feedback).

Comment 5 Fedora Update System 2015-08-05 22:29:21 UTC
kf5-kdeclarative-5.12.0-2.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2015-08-12 06:57:58 UTC
kf5-kdeclarative-5.12.0-2.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.