I’m trying to help someone on fedoraforum that has a problem where starting up Dolphin is very slow (like 8 seconds from launching to seeing Dolphin). Their system is completely updated to KDE 6.1.1, they have previews disabled and I can’t seem to find a problem. I have five completely different Fedora 40 systems using KDE 6.1.1 and never have this problem.
Is there a known cause for this? Also if they get into Dolphin and are in a different folder from their Home, and then select Home from Places, they again get the super slow behavior. We had him make a new user account and log into that user as KDE desktop and launch Dolphin from there, it’s super slow even as the new user so it’s not a ~/.config problem since the new user has a clean template for ~/.config/*
I even walked him through using:
strace -C /usr/bin/dolphin /home/<yourusername>/Downloads |& tee /var/tmp/dolphin-dload.log
strace -C /usr/bin/dolphin /home/<yourusername> |& tee /var/tmp/dolphin-home.log
so the Dolphin runs are pointed at /home/username (which opens slow) and /home/username/Downloads (opens fast) to compare the strace reports, bizarrely there was very little time spent in API calls at all:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- -----------------------
20.32 0.015883 7941 2 waitid
13.08 0.010225 1 5864 4910 access
10.70 0.008363 2 3582 1848 openat
8.66 0.006771 4 1489 mmap
7.48 0.005844 1 3732 1986 statx
4.96 0.003877 3 1083 181 futex
4.24 0.003311 1 2317 2020 readlink
3.68 0.002877 1 2101 write
3.64 0.002844 1 1709 read
3.48 0.002724 23 117 ppoll
3.23 0.002522 1 1422 35 newfstatat
2.77 0.002164 1 1794 close
2.68 0.002093 8 260 munmap
1.90 0.001485 4 307 6 ioctl
1.66 0.001294 1 1198 fstat
1.11 0.000865 14 58 poll
In fact that doesn’t look like a normal startup at all (way too few API calls)