https://bugs.kde.org/show_bug.cgi?id=364837
Bug ID: 364837
Summary: High CPU usage when kdenlive window is on top
Product: kdenlive
Version: 15.12.2
Platform: Ubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: User Interface
Assignee: j...@kdenlive.org
Reporter: bobs_spa...@cox.net
When kdenlive is the top window and idle, high CPU utilization occurs as
follows:
compiz:100%
Xorg: 25%.
kdenlive: 15%
Observed on kdenlive 15.12.3 and 16.07.70.
Opening any dialog in kdenlive, e.g. "New" or "Open" dialogs, drops CPU usage
to normal values while those dialogs remain open.
Reproducible: Always
Steps to Reproduce:
1. Start kdenlive.
2. Start "top" in a terminal window.
3. Position the two windows so that both can be seen, with kdenlive having the
focus.
Actual Results:
High CPU utilization as described above.
Expected Results:
Normal idle CPU utilization (typically no task >5%).
Running on a Windows 8.1 host in a Ubuntu VirtualBox VM with 3D acceleration
disabled.
If 3D acceleration is enabled in the VM, then CPU usage is reduced to:
compiz: 17%
Xorg: 12%
kdenlive: 15%
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