working in Kubuntu 20 I periodically have big problems with performance : my system practically
stops and I have to waite for some period to resume my work:
More details about my Laptop and OS :
Running top command I see :
top - 09:36:02 up 1:20, 1 user, load average: 9.90, 12.13, 9.24
Tasks: 281 total, 3 running, 278 sleeping, 0 stopped, 0 zombie
%Cpu(s): 54.1 us, 2.6 sy, 0.1 ni, 42.6 id, 0.6 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 7868.7 total, 695.2 free, 6537.1 used, 636.4 buff/cache
MiB Swap: 2055.2 total, 123.8 free, 1931.4 used. 1023.8 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4645 postgres 20 0 2870868 2.0g 4 S 100.0 26.5 77:46.78 kswapd0
4634 master 20 0 2936404 2.0g 4 S 99.3 26.5 77:03.22 kswapd0
1413 root 20 0 394084 54188 24784 R 6.3 0.7 3:45.59 Xorg
4259 master 20 0 2897444 60544 47876 R 5.6 0.8 5:04.03 kwin_x11
4386 master 20 0 357376 39256 25736 S 5.6 0.5 0:16.73 konsole
13146 master 20 0 7216 5700 3496 S 4.0 0.1 0:01.27 htop
4303 master 20 0 698316 11784 3332 S 2.0 0.1 1:55.60 audacious
1461 mysql 20 0 2718356 30808 0 S 0.7 0.4 0:47.92 mysqld
4008 master 9 -11 1412560 4856 3308 S 0.7 0.1 2:15.42 pulseaudio
4010 master 39 19 599640 18312 2252 S 0.7 0.2 0:58.10 tracker-miner-f
4325 master 20 0 757580 12072 5012 S 0.7 0.1 0:28.28 ktorrent
5052 mongodb 20 0 2655964 33524 0 S 0.7 0.4 1:28.78 mongod
28 root 20 0 0 0 0 S 0.3 0.0 0:02.04 ksoftirqd/2
1527 root -51 0 0 0 0 S 0.3 0.0 0:42.88 irq/43-nvidia
5209 master 20 0 6818108 1.3g 28 S 0.3 16.4 12:14.31 java
12347 master 20 0 17016 948 0 R 0.3 0.0 0:01.06 top
13127 root 20 0 0 0 0 I 0.3 0.0 0:00.04 kworker/1:3-events
1 root 20 0 170908 8460 3708 S 0.0 0.1 0:03.72 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp
5 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 netns
I have worked with postgres priorly, but I removed all postgres packages
from my OS and now I have :
$ apt list --installed postgres
Listing... Done
...
$ dpkg -s postgres
dpkg-query: package 'postgres' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
So it is very strange to see postgres in listing of “top” coomand
“master” - that is name of current user
any ideas why so and how that can be fixed?
I have MSI GP70-2PE (GP702PE-426XUA) laptop :
https://prnt.sc/keAH_wqF18tV
https://prnt.sc/uCm6oUaZLDbL
$ uname -a
Linux master-at-home 5.15.0-41-generic #44~20.04.1-Ubuntu SMP Fri Jun 24 13:27:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -d; uname -r; uname -i
Description: Ubuntu 20.04.4 LTS
5.15.0-41-generic
x86_64
$ free
total used free shared buff/cache available
Mem: 8059236 6636260 196608 130344 1226368 998828
Swap: 2104476 1917244 187232
$ kf5-config --version
Qt: 5.12.8
KDE Frameworks: 5.68.0
kf5-config: 1.0
After some tests I see that I have problems with performance(my OS pause for some period like 5-10 seconds)
if in my working Chrome browser(Google Chrome
Version 107.0.5304.110 (Official Build) (64-bit)) I open several tabs.
Checking top command :
ADDITIVE INFO :
top - 09:51:45 up 3:14, 1 user, load average: 7.34, 5.57, 5.23
Tasks: 301 total, 4 running, 297 sleeping, 0 stopped, 0 zombie
%Cpu(s): 61.6 us, 34.9 sy, 0.1 ni, 0.1 id, 1.7 wa, 0.0 hi, 1.6 si, 0.0 st
MiB Mem : 7868.7 total, 100.8 free, 7443.9 used, 324.0 buff/cache
MiB Swap: 2055.2 total, 0.0 free, 2055.2 used. 52.1 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
105 root 20 0 0 0 0 R 99.7 0.0 10:33.35 kswapd0
4594 postgres 20 0 2739796 2.0g 4 S 87.7 26.5 189:12.95 kswapd0
4600 master 20 0 2739796 2.0g 4 S 87.7 26.5 189:12.88 kswapd0
29923 master 20 0 1130.9g 152848 24240 R 28.2 1.9 0:35.17 chrome
31225 master 20 0 1129.9g 160792 27048 S 21.0 2.0 0:09.57 chrome
29466 master 20 0 32.6g 151208 9024 S 16.5 1.9 1:13.49 chrome
4228 master 20 0 2885688 39104 27792 S 11.3 0.5 9:50.37 kwin_x11
29509 master 20 0 32.6g 137592 33136 R 10.7 1.7 0:20.30 chrome
1451 root 20 0 393956 60220 32332 S 3.9 0.7 8:50.10 Xorg
29510 master 20 0 32.3g 33116 15532 S 2.9 0.4 0:07.57 chrome
4281 master 20 0 698440 8644 2088 S 2.6 0.1 3:26.09 audacious
29898 master 20 0 1129.9g 104228 4544 S 2.6 1.3 0:19.10 chrome
4350 master 20 0 680040 5704 452 S 2.3 0.1 0:34.55 ktorrent
1743 root -51 0 0 0 0 S 1.3 0.0 1:16.11 irq/43-nvidia
25729 master 20 0 6727456 1.2g 60 S 1.3 15.5 14:08.12 java
1456 mysql 20 0 2751124 36824 0 S 1.0 0.5 1:40.25 mysqld
3993 master 9 -11 1412560 3264 1996 S 1.0 0.0 2:03.77 pulseaudio
3995 master 39 19 679268 12188 0 S 1.0 0.2 1:29.31 tracker-miner-f
29637 master 20 0 1129.9g 117124 8056 S 1.0 1.5 0:09.85 chrome
29660 master 20 0 1130.9g 58800 1804 S 1.0 0.7 0:05.92 chrome
7909 master 20 0 353096 14120 7556 S 0.6 0.2 0:13.65 konsole
29797 master 20 0 1129.9g 25512 1452 S 0.6 0.3 0:01.54 chrome
29950 master 20 0 1129.9g 93136 14672 S 0.6 1.2 0:16.82 chrome
31328 master 20 0 1129.9g 40128 5364 S 0.6 0.5 0:01.70 chrome
116 root 0 -20 0 0 0 I 0.3 0.0 0:04.68 kworker/3:1H-kblockd
1062 root 20 0 90708 16944 0 S 0.3 0.2 1:00.03 mount.ntfs-3g
1318 root 20 0 263956 500 4 S 0.3 0.0 0:01.47 php-fpm8.1
1336 root 20 0 1495748 5960 0 S 0.3 0.1 0:08.47 containerd
4231 master 39 19 256.2g 992 0 S 0.3 0.0 0:02.30 baloo_file
4519 master 20 0 324384 1256 0 S 0.3 0.0 0:01.45 http.so
29464 root 20 0 0 0 0 I 0.3 0.0 0:01.22 kworker/2:2-events
29538 master 20 0 1129.9g 19256 3312 S 0.3 0.2 0:00.47 chrome
29935 master 20 0 1129.9g 91480 4348 S 0.3 1.1 0:12.91 chrome
30655 root 20 0 0 0 0 I 0.3 0.0 0:00.57 kworker/0:0-events
30750 master 20 0 1130.9g 68496 5088 S 0.3 0.9 0:05.18 chrome
31357 master 20 0 17000 1644 708 R 0.3 0.0 0:00.08 top
1 root 20 0 169504 1852 144 S 0.0 0.0 0:03.67 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
I see several rows with “chrome”, but most of memory takes by
root, postgres, master - in first 3 lines and I do not know how can I fix it ?
I tried to delete postgres user in command line, but I got error :
sudo deluser postgres
Removing user `postgres' ...
Warning: group `postgres' has no more members.
userdel: user postgres is currently used by process 3976
/usr/sbin/deluser: `/sbin/userdel postgres' returned error code 8. Exiting.
How can I do it ?
Thanks!
