Bug 368310

Summary: Opening widgets animation is delayed about 1s after click
Product: [Plasma] plasmashell Reporter: Piotr Rogowski <piotrekrogowski>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED WORKSFORME    
Severity: normal CC: bshah, nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.7.3   
Target Milestone: 1.0   
Platform: Gentoo Packages   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Plasma strace

Description Piotr Rogowski 2016-09-06 06:51:21 UTC 
Opening widgets (like menu, calendar, quick  search) have delayed animation by approximately 1s.
Window focus is lost immediately after click.



Reproducible: Always

Steps to Reproduce:
1. enable compositing
2. click on program activator (menu)

Actual Results:  
opening animation stats after ~1s delay

Expected Results:  
animation should start immediately

Issue is present only when compositing is enabled
Bug present since i think plasma 5.5
Bug is present on 2 machines, one with intel skylake graphics (modesetting driver), second machine radeon open source driver
Comment 1 Martin Flöser 2016-09-06 08:51:21 UTC 
can you run xev in the background to monitor whether the window actually opens? I'm wondering whether the problem is that the window does open delayed or whether KWin doesn't show it.
Comment 2 Piotr Rogowski 2016-09-06 11:09:47 UTC 
In xev all events are emitted immediately click.
Comment 3 Martin Flöser 2016-11-02 14:46:16 UTC 
Do I understand correctly that the problem is only with Plasma elements?
Comment 4 Piotr Rogowski 2016-11-02 16:02:07 UTC 
correct
Comment 5 Martin Flöser 2016-11-02 16:39:39 UTC 
Reassigning to plasma - opening QtQuick windows is too slow
Comment 6 David Edmundson 2016-11-02 22:36:55 UTC 
There is no artificial delay.

Some things could be faster, and we are constantly improving that, but that's not a specific bug.
Comment 7 Piotr Rogowski 2016-11-03 07:19:27 UTC 
In this issue I cannot observe any increase of cpu, so this is more.
Attaching strace of plasmashell while opening menu.
Additional note: htop report virtual memory allocation at 264G (!)
Comment 8 Piotr Rogowski 2016-11-03 07:20:00 UTC 
Created attachment 101991 [details]
Plasma strace
Comment 9 Piotr Rogowski 2016-11-05 13:35:24 UTC 
Can you take a look on strace and confirm if those EAGAIN are causing this issue?
Comment 10 Nate Graham 2021-03-10 00:17:42 UTC 
Works for me; it's instant now as of Plasma 5.21. Can you re-test? Thanks!
Comment 11 Bug Janitor Service 2021-03-25 04:33:41 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
mark the bug 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 12 Bug Janitor Service 2021-04-09 04:33:31 UTC 
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!