When I press [Super] to show the Activities Overview, it will take many seconds to actually show.
This doesn’t happen when I first start my computer. Not sure if it is a problem of having open windows that have complicated rendering, or a problem of running many applications that altogether use a lot of memory. In all cases, there is a smooth operation in general, but suffer a big lag when showing the Activities Overview.
Are Gnome devs aware of the issue? Are many people experiencing the same?
Yes, swap is in use, as I typically work with many browser tabs open and IDEs.
However, my system is not overloaded; no application that I use is lagging. From my point of view, the Activities Overview definitely shouldn’t lag, it being a high priority for responsiveness.
If this happens with all extensions disabled (you may need to logout and log back in to make sure), you want to install all -debuginfo packages for gnome-shell, mutter, etc. and profile with Sysprof to figure out what’s going on, which would be helpful in a bug report, because it’s been butter-smooth for me here since 46-47 and particularly 48. Check out this guide about Sysprof…
Hi. I have captured one of those delays in Sysprof. I have no experience in Linux system calls, but the names seem to indicate a delay in the graphics driver fetching virtual memory pages. My guess is that those contain the current snapshots of my open windows.
