I have two laptops with nearly identical hardware specs, both
running Fedora 36 with KDE and completely up-to-date on all software.
Both start in systemd's multi-user.target, KDE starts with a startx
command, Both are running Xorg ($XDG_SESSION_TYPE=""). In non-graphics
mode, their performance seems identical, quite snappy. However, they
do not perform similarly when KDE is running. Starting an application
or opening a new window involves a noticeable delay, sometimes as long
as 20 seconds, even if nothing else is happening at that time.
The only difference I've found thus far is that the slower one does not
have a swap partition. Any suggestions for what else I can check, and
hopefully fix, will be appreciated.
Here's some details on the two machines.
faster one slower one
CPU (4 cores) AMD Ryzen 3 3200U with AMD Ryzen 3 3250U with
Radeon Vega Mobile Gfx Radeon Graphics
Swap zram0, sda3 zram0
fast.com speed 290 Mbps 290 Mbps
bogomips 5190.47 5189.93
MemTotal 3427804 kB 3404868 kB
MemFree 381772 kB 483060 kB
MemAvailable 944388 kB 1007680 kB
Buffers 4 kB 56 kB
Cached 751824 kB 702128 kB
SwapCached 1776 kB 2180 kB
Active 546260 kB 684744 kB
Inactive 1270360 kB 1112104 kB
Active(anon) 99512 kB 189148 kB
Inactive(anon) 971252 kB 907516 kB
Active(file) 446748 kB 495596 kB
Inactive(file) 299108 kB 204588 kB
Unevictable 14676 kB 176 kB
Mlocked 14676 kB 176 kB
SwapTotal 12068856 kB 3404796 kB
SwapFree 11531256 kB 2906364 kB
Dirty 2108 kB 0 kB
Writeback 0 kB 4 kB
AnonPages 1077772 kB 1092708 kB
Mapped 93480 kB 93088 kB
Shmem 2280 kB 2000 kB
KReclaimable 51176 kB 49952 kB
Slab 164444 kB 176112 kB
SReclaimable 51176 kB 49952 kB
SUnreclaim 113268 kB 126160 kB
KernelStack 15904 kB 13064 kB
PageTables 37420 kB 33732 kB
CommitLimit 13782756 kB 5107228 kB
Committed_AS 7497304 kB 6170592 kB
VmallocUsed 520416 kB 527988 kB
Percpu 15488 kB 14464 kB
DirectMap4k 351100 kB 363212 kB
DirectMap2M 3254272 kB 3219456 kB
--
Dave Close, Compata, Irvine CA +1 714 434 7359
dave@xxxxxxxxxxx dhclose@xxxxxxxxxxxxxxxxxx
"Any idiot can face a crisis;
it's the day-to-day living that wears you out." -- Anton Chekhov
