I made a little video to show you that first opening of plama elements like menu, calendar, network is slow, have a lag. The others times you open these elements it's fast. Reproducible: Always Steps to Reproduce: 1. Open a plama elements like menu, calendar, network Actual Results: lag on first opening Expected Results: fast opening
Created attachment 93229 [details] Lag on first opening of plama elements
The first time you open it has to load all the files and compile the JS. We do loading on demand to save memory. We are constantly improving performance, 5.4 will bring a huge boost, so we don't need a specific bug report on this as it will always be improvable.
Ok I hope we can achieve the speed of plasma 4. By the way why there is a such difference between plasma 4 and 5 ?
(In reply to David Edmundson from comment #2) > The first time you open it has to load all the files and compile the JS. We > do loading on demand to save memory. > > We are constantly improving performance, 5.4 will bring a huge boost, so we > don't need a specific bug report on this as it will always be improvable. Would it be possible to compile it before for people with memory or maybe some cache?
I agree, it's still really slow on first openning on plasma 5.4
I tested again Kubuntu 15.10 with plasma 5.4 on a hard install and it's very very slow. The memory saved is about 50MB and I don't think it worth it, especially on system with 3GB or more. Everything feel fast on Plasma 5.4 except that.
I'm sorry to insist with that but can we have a feedback please ? Thank you
>I'm sorry to insist with that but can we have a feedback please ? We are constantly improving performance. It doesn't help to have this as a bug report because it's something we're always improving, it's split over multiple places and there's never a point where it's "done".
Ok but what about preloading all the needed plasmoids to avoid the need to load all the files and compile the JS at the moment you first click on it ? I don't know how it works on plasma 4 but it's fast and it should be at least as fast on the new version of plasma. I would even say that on this next gen plasma it should be faster.
David, any update on this please ? Thank you
No. Sorry
David, Is it possible to add an option to preload all the needed plasmoids and avoid the need to load all the files and compile the JS at the moment you first click on it please ? I think that if the user have a powerful computer, want it to be reactive and there is no technical diificulties, he should be able do to it. Don't you think ? Thanks
I just checked again on Manjaro and the memory saved by not loading some Plasma elements is totally irrelevant. A few MB at most at the price of a really bad first impression and God know that KDE don't need that. I think an option to choose to load everything in memory is even not needed at all. We should load everything by default. I can't understand why a such decision as been made ! Please David, please !
David, I don't want to be annoying but honnestly loading all the files and compile the JS at the first opening to save memory is not a good idea. You said that 5.4 will bring a huge boost but that is not the case. When I click on the clock to display the calendar on my Core i3 w/ SSD almost 2 seconds pass before the calendar is displayed. Every first click on the plasmoids is frustrating. That's insane. Please make plasma load everything on boot or at least give us the option to choose. Thank you a lot for your work.
David have you listen the last Linux Action Show 395 ? They have the same feeling about the desktop. It can be felt sluggish on the first elements opening : https://youtu.be/E02gHmG61ro?t=55m00s https://youtu.be/E02gHmG61ro?t=1h8m25s Again that make bad press and bad feeling about the Plasma 5 desktop for nothing...
David, I will be happy if you can give us your thought here https://forum.kde.org/viewtopic.php?f=289&t=130131
I just tested, for fun, the Nouveau drivers and Plasma 5 is much faster ! It's not as fast as Plasma 4 but it's maybe 2 or 3 times faster than with the Nvidia driver. The lag on first click is not gone but it's very little now (except with the calendar plasmoid).
I'm thinking using KDE again so I wonder if you have changed your mind David to add the possibility to load every needed plasmoid ? Thanks !