top - 11:07:35 up 59 min, 3 users, load average: 4.39, 4.15, 4.04
Tasks: 426 total, 1 running, 424 sleeping, 1 stopped, 0 zombie
%Cpu(s): 13.7 us, 23.1 sy, 0.0 ni, 62.4 id, 0.8 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 6864.2 total, 456.1 free, 4979.5 used, 1794.6 buff/cache
MiB Swap: 7028.0 total, 3855.5 free, 3172.5 used. 1884.7 avail Mem

PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND

237740 uniqued+ 20 0 5307944 2.1g 56644 t 0.0 31.3 4:07.57 deepin-kwin_x11
429856 root 20 0 854460 232676 13824 S 0.0 3.3 0:03.30 gdb
440686 uniqued+ 20 0 3101036 190628 146872 S 6.0 2.7 0:04.57 dde-file-manage
441197 uniqued+ 20 0 2553216 186320 137108 S 1.7 2.7 0:03.95 deepin-deb-inst
437203 uniqued+ 20 0 2495672 167960 120980 S 5.2 2.4 0:04.18 deepin-kwin_x11
253093 uniqued+ 20 0 6751148 156244 82732 S 3.4 2.2 4:21.65 UIThread
237933 uniqued+ 20 0 1455064 137268 87496 S 2.6 2.0 0:26.18 dde-lock

kwin_map.txt

kwin内存占用

发现泄漏时，试试这个

setsid deepin-kwin_x11 --replace &