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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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 Posted: Thu May 21, 2020 8:23 pm Post subject: Gentoo consumes much more memory than Ubuntu |
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Dear all,
I have an old PC with 2Gb RAM and I want to use it as a xfce-desktop. I had upgraded Gentoo to actual, had installed xfce and had configured it. I have expected that RAM consumption would be about 300-350 mb after login but it was 500+ mb (free) / 1.1+ gb (ps_mem).
After that I had installed xubuntu 20.04 alongside Gentoo and had configured xfce same way (plugins, panel, autostart, etc). Memory consumption was ~350mb (free) / ~450 (ps_mem).
I think that incorrect kernel config may cause such consumption but I'm not sure. And I don't know what to do to find out what is the cause. Maybe somebody can help me here.
Some data.
emerge --info: https://bpa.st/FDWA
lshw: https://bpa.st/GUBA
lspci -v: https://bpa.st/G4MA
.config: https://pastebin.com/VBsDGjPH
Some memory consumption info.
Gentoo after loading lxdm screen
| Code: |
# free
total used free shared buff/cache available
Mem: 2044372 118816 1714488 2848 211068 1892768
Swap: 7999484 0 7999484
# free -h
total used free shared buff/cache available
Mem: 1,9Gi 115Mi 1,6Gi 2,0Mi 206Mi 1,8Gi
Swap: 7,6Gi 0B 7,6Gi
# ps_mem
Private + Shared = RAM used Program
148.0 KiB + 248.0 KiB = 396.0 KiB init
176.0 KiB + 284.0 KiB = 460.0 KiB bootlogd
184.0 KiB + 308.0 KiB = 492.0 KiB acpid
280.0 KiB + 450.0 KiB = 730.0 KiB fcron
584.0 KiB + 716.0 KiB = 1.3 MiB dhcpcd
364.0 KiB + 1.1 MiB = 1.5 MiB lxdm-binary
640.0 KiB + 1.0 MiB = 1.6 MiB dbus-daemon
912.0 KiB + 2.6 MiB = 3.5 MiB agetty (6)
1.2 MiB + 2.8 MiB = 3.9 MiB console-kit-daemon
2.0 MiB + 2.3 MiB = 4.3 MiB bash
2.1 MiB + 3.1 MiB = 5.2 MiB nmbd
1.9 MiB + 4.5 MiB = 6.4 MiB syslog-ng (2)
3.1 MiB + 3.4 MiB = 6.4 MiB systemd-udevd
2.1 MiB + 4.9 MiB = 7.1 MiB sshd (2)
5.0 MiB + 8.0 MiB = 13.0 MiB NetworkManager
5.7 MiB + 18.2 MiB = 23.9 MiB smbd (4)
12.8 MiB + 14.9 MiB = 27.7 MiB polkitd
28.6 MiB + 44.7 MiB = 73.2 MiB lxdm-greeter-gtk
49.5 MiB + 64.6 MiB = 114.2 MiB Xorg
---------------------------------
295.2 MiB
=================================
|
xubuntu after loading lxdm screen:
| Code: |
# free
total used free shared buff/cache available
Mem: 2033772 176496 1443388 1900 413888 1705476
Swap: 7999484 0 7999484
# free -h
total used free shared buff/cache available
Mem: 1,9Gi 172Mi 1,4Gi 1,0Mi 404Mi 1,6Gi
Swap: 7,6Gi 0B 7,6Gi
# python3 Downloads/ps_mem.py
Private + Shared = RAM used Program
228.0 KiB + 50.5 KiB = 278.5 KiB acpid
204.0 KiB + 101.5 KiB = 305.5 KiB anacron
308.0 KiB + 56.5 KiB = 364.5 KiB agetty
324.0 KiB + 133.5 KiB = 457.5 KiB cron
344.0 KiB + 135.5 KiB = 479.5 KiB rtkit-daemon
348.0 KiB + 272.5 KiB = 620.5 KiB lxdm-binary
464.0 KiB + 158.5 KiB = 622.5 KiB irqbalance
560.0 KiB + 402.5 KiB = 962.5 KiB su
476.0 KiB + 620.0 KiB = 1.1 MiB avahi-daemon (2)
952.0 KiB + 313.0 KiB = 1.2 MiB kerneloops (2)
1.0 MiB + 611.5 KiB = 1.6 MiB systemd-timesyncd
1.4 MiB + 269.5 KiB = 1.6 MiB sudo
1.2 MiB + 662.5 KiB = 1.8 MiB systemd-logind
1.3 MiB + 629.5 KiB = 1.9 MiB accounts-daemon
1.4 MiB + 710.0 KiB = 2.1 MiB dbus-daemon (2)
2.2 MiB + 136.5 KiB = 2.4 MiB rsyslogd
2.2 MiB + 974.5 KiB = 3.1 MiB cupsd
2.8 MiB + 663.5 KiB = 3.5 MiB polkitd
2.4 MiB + 1.4 MiB = 3.8 MiB bash (2)
2.5 MiB + 1.9 MiB = 4.3 MiB cups-browsed
4.4 MiB + 162.5 KiB = 4.6 MiB systemd-udevd
4.7 MiB + 1.1 MiB = 5.8 MiB systemd-resolved
5.1 MiB + 864.5 KiB = 5.9 MiB udisksd
2.5 MiB + 3.8 MiB = 6.3 MiB sshd (3)
4.3 MiB + 4.8 MiB = 9.0 MiB systemd (3)
7.4 MiB + 1.9 MiB = 9.3 MiB NetworkManager
9.0 MiB + 1.6 MiB = 10.6 MiB pulseaudio
9.3 MiB + 2.6 MiB = 11.9 MiB networkd-dispat
16.8 MiB + 2.5 MiB = 19.3 MiB lxdm-greeter-gtk
58.7 MiB + 940.5 KiB = 59.6 MiB Xorg
72.0 MiB + 4.8 MiB = 76.8 MiB systemd-journald
---------------------------------
251.6 MiB
=================================
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Gentoo after login to xfce session:
| Code: |
# free
total used free shared buff/cache available
Mem: 2044372 516556 1237628 3220 290188 1492860
Swap: 7999484 0 7999484
# free -h
total used free shared buff/cache available
Mem: 1,9Gi 503Mi 1,2Gi 3,0Mi 283Mi 1,4Gi
Swap: 7,6Gi 0B 7,6Gi
# ps_mem
Private + Shared = RAM used Program
148.0 KiB + 194.0 KiB = 342.0 KiB init
176.0 KiB + 228.0 KiB = 404.0 KiB bootlogd
184.0 KiB + 244.0 KiB = 428.0 KiB acpid
280.0 KiB + 358.0 KiB = 638.0 KiB fcron
352.0 KiB + 480.0 KiB = 832.0 KiB dbus-launch
388.0 KiB + 614.0 KiB = 1.0 MiB lxdm-binary
392.0 KiB + 658.0 KiB = 1.0 MiB lxdm-session
584.0 KiB + 648.0 KiB = 1.2 MiB dhcpcd
652.0 KiB + 672.0 KiB = 1.3 MiB ssh-agent
752.0 KiB + 912.0 KiB = 1.6 MiB gpg-agent
676.0 KiB + 1.0 MiB = 1.7 MiB gvfsd-metadata
792.0 KiB + 1.1 MiB = 1.9 MiB gvfs-mtp-volume-monitor
924.0 KiB + 1.2 MiB = 2.1 MiB xfconfd
1.1 MiB + 1.4 MiB = 2.6 MiB gnome-keyring-daemon
1.2 MiB + 1.5 MiB = 2.7 MiB console-kit-daemon
1.1 MiB + 1.6 MiB = 2.7 MiB gvfs-gphoto2-volume-monitor
1.0 MiB + 1.7 MiB = 2.7 MiB gsettings-helper
900.0 KiB + 1.8 MiB = 2.7 MiB agetty (6)
1.0 MiB + 1.8 MiB = 2.8 MiB gvfs-afc-volume-monitor
960.0 KiB + 1.9 MiB = 2.8 MiB gvfsd
1.2 MiB + 2.3 MiB = 3.5 MiB gvfsd-trash
1.4 MiB + 2.0 MiB = 3.5 MiB dbus-daemon (2)
1.5 MiB + 2.3 MiB = 3.8 MiB upowerd
2.0 MiB + 2.1 MiB = 4.1 MiB bash
1.9 MiB + 2.9 MiB = 4.8 MiB gvfs-udisks2-volume-monitor
2.1 MiB + 2.9 MiB = 5.1 MiB nmbd
1.9 MiB + 4.0 MiB = 5.9 MiB syslog-ng (2)
3.0 MiB + 3.2 MiB = 6.1 MiB systemd-udevd
1.9 MiB + 4.4 MiB = 6.3 MiB sshd (2)
4.6 MiB + 5.7 MiB = 10.3 MiB udisksd
4.7 MiB + 6.1 MiB = 10.8 MiB NetworkManager
5.2 MiB + 6.5 MiB = 11.6 MiB pulseaudio
5.7 MiB + 17.6 MiB = 23.3 MiB smbd (4)
13.2 MiB + 14.0 MiB = 27.2 MiB polkitd
18.7 MiB + 20.8 MiB = 39.6 MiB xfce4-volumed-pulse
18.5 MiB + 22.2 MiB = 40.7 MiB xfce4-notifyd
18.7 MiB + 22.4 MiB = 41.0 MiB panel-15-systra
19.5 MiB + 22.1 MiB = 41.6 MiB xfsettingsd
19.1 MiB + 22.6 MiB = 41.7 MiB xfce4-power-manager
18.9 MiB + 22.8 MiB = 41.7 MiB xfce4-screensaver
18.7 MiB + 23.8 MiB = 42.5 MiB xfce4-clipman
19.4 MiB + 23.3 MiB = 42.6 MiB Thunar
19.6 MiB + 23.4 MiB = 43.1 MiB xfce4-session
20.1 MiB + 23.8 MiB = 43.9 MiB tumblerd
19.0 MiB + 25.3 MiB = 44.3 MiB panel-20-alsa
20.0 MiB + 25.8 MiB = 45.8 MiB xfce4-panel
20.4 MiB + 26.4 MiB = 46.9 MiB panel-2-whisker
20.9 MiB + 27.0 MiB = 47.9 MiB xfwm4
21.5 MiB + 28.6 MiB = 50.0 MiB nm-applet
22.3 MiB + 28.0 MiB = 50.4 MiB panel-19-xkb
26.9 MiB + 34.1 MiB = 61.1 MiB panel-16-weathe
33.6 MiB + 40.6 MiB = 74.2 MiB xfdesktop
58.7 MiB + 61.2 MiB = 120.0 MiB Xorg
---------------------------------
1.1 GiB
=================================
|
xubuntu after login to xfce session:
| Code: |
# free
total used free shared buff/cache available
Mem: 2033772 363072 1176976 2212 493724 1516712
Swap: 7999484 0 7999484
# free -h
total used free shared buff/cache available
Mem: 1,9Gi 354Mi 1,1Gi 2,0Mi 482Mi 1,4Gi
Swap: 7,6Gi 0B 7,6Gi
# python3 Downloads/ps_mem.py
Private + Shared = RAM used Program
204.0 KiB + 48.5 KiB = 252.5 KiB anacron
228.0 KiB + 30.5 KiB = 258.5 KiB acpid
308.0 KiB + 32.5 KiB = 340.5 KiB agetty
324.0 KiB + 70.5 KiB = 394.5 KiB cron
344.0 KiB + 83.5 KiB = 427.5 KiB rtkit-daemon
348.0 KiB + 107.5 KiB = 455.5 KiB lxdm-binary
464.0 KiB + 77.5 KiB = 541.5 KiB irqbalance
692.0 KiB + 17.5 KiB = 709.5 KiB ssh-agent
560.0 KiB + 275.5 KiB = 835.5 KiB su
824.0 KiB + 179.5 KiB = 1.0 MiB gvfs-mtp-volume-monitor
476.0 KiB + 550.0 KiB = 1.0 MiB avahi-daemon (2)
828.0 KiB + 217.5 KiB = 1.0 MiB gpg-agent
952.0 KiB + 167.0 KiB = 1.1 MiB kerneloops (2)
796.0 KiB + 339.5 KiB = 1.1 MiB lxdm-session
996.0 KiB + 141.5 KiB = 1.1 MiB xfconfd
996.0 KiB + 148.5 KiB = 1.1 MiB gvfs-goa-volume-monitor
1.1 MiB + 154.5 KiB = 1.3 MiB gnome-keyring-daemon
1.2 MiB + 161.5 KiB = 1.3 MiB gvfsd-fuse
980.0 KiB + 406.5 KiB = 1.4 MiB gvfsd
1.1 MiB + 272.5 KiB = 1.4 MiB gvfs-gphoto2-volume-monitor
1.3 MiB + 207.5 KiB = 1.5 MiB accounts-daemon
1.0 MiB + 539.5 KiB = 1.5 MiB systemd-timesyncd
1.4 MiB + 182.5 KiB = 1.6 MiB sudo
1.2 MiB + 443.5 KiB = 1.6 MiB gvfsd-trash
1.4 MiB + 423.5 KiB = 1.8 MiB gvfs-afc-volume-monitor
1.2 MiB + 596.5 KiB = 1.8 MiB systemd-logind
2.2 MiB + 91.5 KiB = 2.3 MiB rsyslogd
1.9 MiB + 732.5 KiB = 2.6 MiB polkit-gnome-authentication-agent-1
2.1 MiB + 544.5 KiB = 2.7 MiB gvfs-udisks2-volume-monitor
2.2 MiB + 532.0 KiB = 2.7 MiB dbus-daemon (2)
2.2 MiB + 670.5 KiB = 2.8 MiB cupsd
2.2 MiB + 814.5 KiB = 3.0 MiB xfce4-notifyd
2.9 MiB + 233.5 KiB = 3.1 MiB polkitd
2.1 MiB + 1.4 MiB = 3.5 MiB cups-browsed
2.4 MiB + 1.3 MiB = 3.7 MiB bash (2)
4.4 MiB + 129.5 KiB = 4.5 MiB systemd-udevd
4.5 MiB + 849.5 KiB = 5.4 MiB udisksd
4.4 MiB + 986.5 KiB = 5.4 MiB systemd-resolved
2.4 MiB + 3.7 MiB = 6.0 MiB sshd (3)
6.9 MiB + 1.4 MiB = 8.4 MiB NetworkManager
7.7 MiB + 1.0 MiB = 8.7 MiB panel-5-systray
4.5 MiB + 4.5 MiB = 9.0 MiB systemd (3)
7.8 MiB + 1.2 MiB = 9.0 MiB pulseaudio
8.3 MiB + 967.5 KiB = 9.2 MiB Thunar
8.2 MiB + 1.3 MiB = 9.5 MiB xfce4-screensaver
8.7 MiB + 1.1 MiB = 9.8 MiB xfsettingsd
9.2 MiB + 1.9 MiB = 11.2 MiB networkd-dispat
9.2 MiB + 2.3 MiB = 11.5 MiB panel-6-whisker
11.1 MiB + 797.5 KiB = 11.8 MiB tumblerd
9.5 MiB + 2.7 MiB = 12.2 MiB xfwm4
8.9 MiB + 3.4 MiB = 12.3 MiB panel-10-pulsea
9.4 MiB + 3.1 MiB = 12.6 MiB xfce4-panel
11.1 MiB + 3.7 MiB = 14.8 MiB nm-applet
12.6 MiB + 2.6 MiB = 15.2 MiB panel-15-xkb
13.3 MiB + 2.7 MiB = 16.1 MiB panel-19-weathe
23.0 MiB + 3.5 MiB = 26.4 MiB xfdesktop
20.2 MiB + 7.2 MiB = 27.4 MiB xfce4-session
55.7 MiB + 6.6 MiB = 62.3 MiB Xorg
78.1 MiB + 5.2 MiB = 83.3 MiB systemd-journald
---------------------------------
455.2 MiB
=================================
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Thanks,
Yuri |
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alamahant
Advocate
Joined: 23 Mar 2019
Posts: 3949
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| Posted: Thu May 21, 2020 8:47 pm Post subject: |
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If you add the used memory and the buffer/cached memory in both cases xubuntu seems to comsume more.
| Code: |
503Mi + 283Mi Gentoo=786M
354Mi + 482Mi Xubuntu=836M
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Maybe some "sysctl" tweak or maybe a better kernel .config or a grub parameter for Xubuntu makes for better mem management.
Yet again you cant compare pears and oranges.Xubuntu is systemd and Gentoo is Openrc no?
Xubuntu's tweaking is being performed by a many many people working on it,whereas Gentoo you just configured your self no????
They are bound to have better results even when working on something as controversial as (X)ubuntu...
Please do this:
In Gentoo run:
| Code: |
echo 1 > /proc/sys/vm/drop_caches
echo 2 > /proc/sys/vm/drop_caches
echo 3 > /proc/sys/vm/drop_caches
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And check again memory usage...
However having said all that a minimal level of systemd(systemctl preset-all) can also have surpising low mem consumption I recently discovered..
My stats after having just booted in into my new systemd-xfce Gentoo system:
| Code: |
Tasks: 232 total, 1 running, 231 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.4 us, 0.8 sy, 0.0 ni, 96.7 id, 2.1 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 15897.9 total, 15326.8 free, 321.8 used, 249.3 buff/cache
MiB Swap: 0.0 total, 0.0 free, 0.0 used. 15239.4 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1755 root 20 0 6104 3360 2672 R 3.8 0.0 0:00.03 top
1 root 20 0 12724 8728 5952 S 0.0 0.1 0:01.28 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 20 0 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0-events
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H-events_highpri
7 root 20 0 0 0 0 I 0.0 0.0 0:00.02 kworker/u16:0-events_unbound
8 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq
9 root 20 0 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0
10 root -2 0 0 0 0 S 0.0 0.0 0:00.00 rcuc/0
11 root -2 0 0 0 0 I 0.0 0.0 0:00.03 rcu_preempt
12 root -2 0 0 0 0 S 0.0 0.0 0:00.00 rcub/0
13 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
14 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/0
15 root 20 0 0 0 0 I 0.0 0.0 0:00.01 kworker/0:1-events
16 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
17 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/1
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And the "ps_mem" thingie.
| Code: |
ps_mem
Private + Shared = RAM used Program
232.0 KiB + 394.0 KiB = 626.0 KiB agetty
324.0 KiB + 508.0 KiB = 832.0 KiB syndaemon
660.0 KiB + 690.0 KiB = 1.3 MiB ssh-agent
760.0 KiB + 836.0 KiB = 1.6 MiB gpg-agent
484.0 KiB + 1.1 MiB = 1.6 MiB su
816.0 KiB + 1.1 MiB = 1.9 MiB dbus-launch (2)
644.0 KiB + 1.3 MiB = 1.9 MiB systemd-timesyncd
912.0 KiB + 1.2 MiB = 2.1 MiB xfconfd
956.0 KiB + 1.6 MiB = 2.6 MiB systemd-resolved
1.2 MiB + 1.9 MiB = 3.1 MiB systemd-logind
1.1 MiB + 2.1 MiB = 3.2 MiB gsettings-helper
1.4 MiB + 1.9 MiB = 3.3 MiB upowerd
1.3 MiB + 2.0 MiB = 3.3 MiB systemd-networkd
1.6 MiB + 2.0 MiB = 3.7 MiB gvfsd
2.1 MiB + 2.3 MiB = 4.4 MiB lvmetad
1.9 MiB + 3.0 MiB = 5.0 MiB dbus-daemon (3)
1.3 MiB + 4.1 MiB = 5.4 MiB bash (2)
2.0 MiB + 3.8 MiB = 5.8 MiB lightdm (2)
3.0 MiB + 3.6 MiB = 6.6 MiB systemd-udevd
3.4 MiB + 4.6 MiB = 8.0 MiB gvfs-udisks2-volume-monitor
4.8 MiB + 6.9 MiB = 11.7 MiB polkit-gnome-authentication-agent-1
4.9 MiB + 6.8 MiB = 11.7 MiB xfce4-notifyd
5.1 MiB + 6.8 MiB = 11.9 MiB xfce4-power-manager
5.0 MiB + 7.2 MiB = 12.2 MiB panel-6-systray
5.4 MiB + 7.8 MiB = 13.2 MiB xfce4-session
5.1 MiB + 8.1 MiB = 13.2 MiB panel-14-action
5.6 MiB + 7.9 MiB = 13.5 MiB Thunar
6.1 MiB + 7.4 MiB = 13.5 MiB pulseaudio
5.3 MiB + 8.3 MiB = 13.6 MiB xfce4-screensaver
5.9 MiB + 8.2 MiB = 14.0 MiB xfsettingsd
6.2 MiB + 7.9 MiB = 14.1 MiB udisksd
5.5 MiB + 9.0 MiB = 14.5 MiB panel-9-power-m
5.9 MiB + 10.6 MiB = 16.5 MiB panel-10-notifi
4.8 MiB + 12.0 MiB = 16.8 MiB systemd.bak (3)
7.5 MiB + 11.6 MiB = 19.1 MiB xfce4-panel
14.6 MiB + 15.7 MiB = 30.3 MiB polkitd
13.1 MiB + 20.2 MiB = 33.3 MiB xfce4-terminal
15.9 MiB + 19.0 MiB = 34.9 MiB xfdesktop
15.5 MiB + 28.8 MiB = 44.3 MiB xfwm4
30.4 MiB + 32.1 MiB = 62.5 MiB named
26.9 MiB + 39.4 MiB = 66.3 MiB systemd-journald
34.2 MiB + 45.2 MiB = 79.4 MiB Xorg
---------------------------------
626.5 MiB
=================================
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...And I have bind running also.
No sysctl tweaks.
Just kernel 5.6.10 from kernel.org compiled with an arch .config file.
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dmpogo
Advocate
Joined: 02 Sep 2004
Posts: 3468
Location: Canada
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| Posted: Fri May 22, 2020 2:29 am Post subject: |
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| As you may notice, the difference comes mainly from 'shared' part of the memory, which is almost non-existent in Ubuntu relative to Gentoo. I would actually wonder how shared memory is even counted into the total, since by it is meaning, this is one that the process shared with other. Perhaps somebody could explain what is happening with shared memory here. |
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6920
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| Posted: Fri May 22, 2020 8:37 am Post subject: |
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I'm more used to seeing such wildly inaccurate comparisons being made to windows. Any tool that accounts shared memory separately per process then adds it up arithmetically is incompetently built.
The dangers of trusting random code off of Microsoft hosting services, I guess… |
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Fri May 22, 2020 2:36 pm Post subject: |
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alamahant,
| alamahant wrote: |
If you add the used memory and the buffer/cached memory in both cases xubuntu seems to comsume more.
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I know, but I don't understand why "Used" by Gentoo larger than Ubuntu.
| alamahant wrote: |
Xubuntu's tweaking is being performed by a many many people working on it,whereas Gentoo you just configured your self no????
They are bound to have better results even when working on something as controversial as (X)ubuntu...
|
Yes, I am the only member of my team
But I'm trying to reach better results than I already did
| alamahant wrote: |
Please do this:
In Gentoo run:
| Code: |
echo 1 > /proc/sys/vm/drop_caches
echo 2 > /proc/sys/vm/drop_caches
echo 3 > /proc/sys/vm/drop_caches
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And check again memory usage...
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Before
| Code: |
total used free shared buff/cache available
Mem: 2044376 475548 1288500 3216 280328 1534404
Swap: 7999484 0 7999484
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After
| Code: |
total used free shared buff/cache available
Mem: 2044376 476216 1442960 3216 125200 1535644
Swap: 7999484 0 7999484
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Cache was partially dropped, it is expected behavior, "used" remains the same.
dmpogo, yes, you are right, "private" memory parts are comparable, but shared parts are much different and it is very strange for me to see it.
Ant P. Sorry for it, I was wrong to use summary from ps_mem in my first post. But "private" and "shared" shows interesting and inexplicable (for me) difference. |
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Sun May 24, 2020 4:19 pm Post subject: |
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I had tried gentoo-kernel-bin - nothing ever changed, 500+mb after login.
After that I have tried to boot Gentoo using Ubuntu kernel. I successfully booted and logged in, but memory consumption remains the same.
After that I take 'sysctl -a' from Ubuntu and Gentoo and wrote the script to find difference.
| Code: |
Difference (Ubuntu # Gentoo):
fs.dentry-state=20310 4310 45 0 434 0 # 26106 9548 45 0 2374 0
fs.file-max=9223372036854775807 # 197766
fs.file-nr=6848 0 9223372036854775807 # 3520 0 197766
fs.inode-nr=20972 1417 # 23794 520
fs.inode-state=20972 1417 0 0 0 0 0 # 23794 520 0 0 0 0 0
fs.protected_fifos=1 # 0
fs.protected_regular=2 # 0
fs.quota.syncs=0 # 4
kernel.kptr_restrict=1 # 0
kernel.ns_last_pid=4486 # 3093
kernel.perf_event_max_sample_rate=9000 # 100000
kernel.pid_max=4194304 # 32768
kernel.printk=4 4 1 7 # 1 4 1 7
kernel.printk_devkmsg=on # ratelimit
kernel.pty.nr=1 # 3
kernel.random.boot_id=7fe361fc-c780-4079-81fc-0a7286127eca # 625fe4d8-188d-4fb6-bc6a-4cd71bf17d06
kernel.random.entropy_avail=3364 # 1413
kernel.random.uuid=270b4e7a-84b7-427d-8cd0-421ea5dcab39 # 2a6ecec6-b3fa-4b0e-b4cb-39d50c7d0b2d
kernel.sched_domain.cpu0.domain0.max_newidle_lb_cost=1092651 # 2348
kernel.sched_domain.cpu0.domain1.max_newidle_lb_cost=478376 # 4067
kernel.sched_domain.cpu1.domain0.max_newidle_lb_cost=943327 # 1938
kernel.sched_domain.cpu1.domain1.max_newidle_lb_cost=786815 # 4434
kernel.sched_domain.cpu2.domain0.max_newidle_lb_cost=947187 # 2813
kernel.sched_domain.cpu2.domain1.max_newidle_lb_cost=1163001 # 2548
kernel.sched_domain.cpu3.domain0.max_newidle_lb_cost=1236443 # 3064
kernel.sched_domain.cpu3.domain1.max_newidle_lb_cost=1260546 # 4935
kernel.sysrq=176 # 438
net.core.default_qdisc=fq_codel # pfifo_fast
net.ipv4.conf.all.rp_filter=2 # 0
net.ipv4.conf.default.promote_secondaries=1 # 0
net.ipv4.conf.default.rp_filter=2 # 0
net.ipv4.conf.enp4s0.rp_filter=2 # 0
net.ipv4.conf.lo.promote_secondaries=1 # 0
net.ipv4.ping_group_range=0 2147483647 # 1 0
net.ipv6.conf.all.use_tempaddr=2 # 0
net.ipv6.conf.default.use_tempaddr=2 # 0
net.ipv6.conf.enp4s0.accept_ra=0 # 1
net.ipv6.conf.enp4s0.accept_ra_defrtr=1 # 0
net.ipv6.conf.enp4s0.accept_ra_pinfo=1 # 0
net.ipv6.conf.enp4s0.accept_ra_rtr_pref=1 # 0
net.ipv6.conf.enp4s0.use_tempaddr=2 # 0
net.unix.max_dgram_qlen=512 # 10
vm.user_reserve_kbytes=61705 # 61721
Process finished with exit code 0
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It seems that there is no parameters here that can help me. |
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Banana
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Joined: 21 May 2004
Posts: 1884
Location: Germany
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| Posted: Sun May 24, 2020 5:24 pm Post subject: |
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you can't really compare since the configurations are not the same.
As alamahant already said xubuntu is a ready build. Gentoo you need to do it by yourself. The basic installtion guidlines provide a working gentoo installtion. To create a system which uses less memory you need to tweek on the right places.
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bambus89
n00b
Joined: 24 May 2020
Posts: 6
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| Posted: Sat May 30, 2020 11:08 am Post subject: |
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Something is going wrong in your system. I have installed gentoo with Kernel 5.6.15, full disk encryption and a full blown Plasma desktop and after boot my system needs 550-700 mb fo ram... 
The kernel i use is gentoo-kernel and for initramfs it uses dracut and the .config is the default config enabled all options comes with the kernel... so also full blown...
edit:
free -h:
| Code: |
gesamt benutzt frei gemns. Puffer/Cache verfügbar
Speicher: 15Gi 438Mi 14Gi 164Mi 717Mi 14Gi
Swap: 0B 0B 0B
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ps_mem
| Code: |
Private + Shared = RAM used Program
96.0 KiB + 124.0 KiB = 220.0 KiB start_kdeinit
344.0 KiB + 552.0 KiB = 896.0 KiB lvmetad
460.0 KiB + 978.0 KiB = 1.4 MiB su
656.0 KiB + 1.1 MiB = 1.8 MiB dconf-service
928.0 KiB + 1.8 MiB = 2.7 MiB systemd-timesyncd
1.1 MiB + 1.9 MiB = 3.0 MiB gsettings-helper
1.0 MiB + 2.0 MiB = 3.0 MiB startplasma-x11
1.4 MiB + 1.8 MiB = 3.1 MiB obexd
1.2 MiB + 2.2 MiB = 3.3 MiB systemd-logind
1.4 MiB + 2.1 MiB = 3.5 MiB sudo
1.7 MiB + 2.0 MiB = 3.8 MiB bash
1.6 MiB + 2.3 MiB = 4.0 MiB upowerd
1.9 MiB + 2.1 MiB = 4.0 MiB bluetoothd
2.0 MiB + 2.9 MiB = 4.9 MiB thermald
2.2 MiB + 3.0 MiB = 5.2 MiB dbus-daemon (2)
2.6 MiB + 2.6 MiB = 5.2 MiB dhclient
2.0 MiB + 3.3 MiB = 5.3 MiB sddm
2.1 MiB + 3.5 MiB = 5.7 MiB sddm-helper
2.2 MiB + 4.1 MiB = 6.3 MiB xembedsniproxy
3.2 MiB + 3.2 MiB = 6.4 MiB haveged
2.3 MiB + 4.2 MiB = 6.5 MiB kscreen_backend_launcher
2.4 MiB + 4.4 MiB = 6.8 MiB gmenudbusmenuproxy
3.1 MiB + 4.1 MiB = 7.1 MiB wpa_supplicant
3.4 MiB + 4.3 MiB = 7.7 MiB systemd-udevd
3.7 MiB + 4.2 MiB = 7.8 MiB fish
2.8 MiB + 5.2 MiB = 7.9 MiB plasma_session
4.5 MiB + 6.0 MiB = 10.5 MiB udisksd
4.8 MiB + 7.1 MiB = 11.9 MiB baloo_file
4.1 MiB + 8.0 MiB = 12.1 MiB kactivitymanagerd
4.5 MiB + 9.2 MiB = 13.7 MiB klauncher
6.1 MiB + 8.2 MiB = 14.3 MiB NetworkManager
3.4 MiB + 10.9 MiB = 14.3 MiB systemd (3)
5.9 MiB + 10.1 MiB = 16.0 MiB kglobalaccel5
5.9 MiB + 12.1 MiB = 18.0 MiB org_kde_powerdevil
7.0 MiB + 11.9 MiB = 18.9 MiB kaccess
7.3 MiB + 12.2 MiB = 19.4 MiB kwalletd5
7.5 MiB + 12.7 MiB = 20.2 MiB DiscoverNotifier
7.4 MiB + 12.8 MiB = 20.2 MiB polkit-kde-authentication-agent-1
7.5 MiB + 13.4 MiB = 20.9 MiB ksmserver
10.6 MiB + 12.7 MiB = 23.3 MiB pulseaudio
13.9 MiB + 15.0 MiB = 28.9 MiB polkitd
16.2 MiB + 31.7 MiB = 47.9 MiB kded5
22.7 MiB + 31.5 MiB = 54.2 MiB Xorg
21.5 MiB + 54.0 MiB = 75.5 MiB kdeinit5 (7)
60.8 MiB + 84.4 MiB = 145.2 MiB kwin_x11
75.8 MiB + 93.8 MiB = 169.6 MiB systemd-journald
116.9 MiB + 150.9 MiB = 267.8 MiB plasmashell
---------------------------------
1.1 GiB
=================================
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Neofetch
| Code: |
Memory: 630MiB / 15897MiB
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Banana
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Posts: 1884
Location: Germany
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bambus89
n00b
Joined: 24 May 2020
Posts: 6
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| Posted: Sat May 30, 2020 10:49 pm Post subject: |
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i think there are all options enabled because all my hardware even peripherals works all ootb
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dmpogo
Advocate
Joined: 02 Sep 2004
Posts: 3468
Location: Canada
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| Posted: Sun May 31, 2020 1:08 am Post subject: |
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| bambus89 wrote: | | i think there are all options enabled because all my hardware even peripherals works all ootb |
If you mean, install gentoo-kernel, do make menconfig, save and exit immediately (which generates .config without you having changed anything) as default, then no, not alll options will be enabled. Many defaults are set to 'No' |
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bambus89
n00b
Joined: 24 May 2020
Posts: 6
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| Posted: Sun May 31, 2020 8:41 am Post subject: |
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But i have an i2c touchpad from elan which i can say for some times with the genkernel-kernel install from handbook never worked... and with this kernel i do nothing and just all works out of the box...
edit:
If you mean that i invoke menuconfig then no... i do nothing and this process is fully automated. so maybe the install script does or a default gentoo .config will be loaded... i don't know. And even it is not "Full blown" most of the modules are in. I don't think that is does that much to ram usage...
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Mon Jun 01, 2020 11:31 am Post subject: |
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Finally, I have found the reason!
I have an old videocard, NVIDIA GTX-280 and I use nvidia driver for it (not nouveau).
All the tests that I had posted here before I have done with
| Code: |
# eselect opengl list
Available OpenGL implementations:
[1] nvidia *
[2] xorg-x11
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But after
| Code: |
# eselect opengl set 2
Switching to xorg-x11 OpenGL interface... done
# eselect opengl list
Available OpenGL implementations:
[1] nvidia
[2] xorg-x11 *
# reboot
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I have got
| Code: |
# free
total used free shared buff/cache available
Mem: 2044376 292856 1475296 3244 276224 1717088
Swap: 7999484 0 7999484
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I have repeated it 6 times (3 reboot with nvidia opengl and 3 with xorg-x11 opengl) and result was the same: ~300mb with xorg-x11 and 500+mb with nvidia.
It is looks very, very strange for me. And I totally don't understand what I can do with it.
And in Ubuntu the same nvidia-drivers are used, hm. |
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dmpogo
Advocate
Joined: 02 Sep 2004
Posts: 3468
Location: Canada
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| Posted: Mon Jun 01, 2020 2:01 pm Post subject: |
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So to summarize, using nvidia-drivers on Gentoo leads to extra 200 Mb as compared to Ubiuntu ? xorg-X11 opengl on both Gentoo and Ubuntu behaves the same ?
I'll try to compare it on my machine with old nvidia card. What drivers are you using nvidia-drivers-340 ?
Since you are using nvidia-drivers, in your Gentoo kernel configuration did you clear out Direct Rendering Manager option in "Graphics Support" ? |
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Mon Jun 01, 2020 3:41 pm Post subject: |
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| dmpogo wrote: |
So to summarize, using nvidia-drivers on Gentoo leads to extra 200 Mb as compared to Ubiuntu ?
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yes
| dmpogo wrote: |
xorg-X11 opengl on both Gentoo and Ubuntu behaves the same ?
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Yes, Xubuntu consumes ~350 mb after login regardless the drivers, Gentoo consumes 500+ using nvidia and ~300 using xorg-x11
| dmpogo wrote: |
I'll try to compare it on my machine with old nvidia card. What drivers are you using nvidia-drivers-340 ?
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Thank you!
Yes, I use
| Code: |
[ebuild R ] x11-drivers/nvidia-drivers-340.108:0/340::gentoo USE="X acpi multilib static-libs tools" ABI_X86="(64) -32 (-x32)" 0 KiB
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Unfortunally, it is the last supported version for my old card.
| dmpogo wrote: |
Since you are using nvidia-drivers, in your Gentoo kernel configuration did you clear out Direct Rendering Manager option in "Graphics Support" ?
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Device Drivers / Graphic support
| Code: |
│ │ < > /dev/agpgart (AGP Support) ---- │ │
│ │ [*] VGA Arbitration │ │
│ │ (16) Maximum number of GPUs │ │
│ │ [ ] Laptop Hybrid Graphics - GPU switching support │ │
│ │ < > Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ---- │ │
│ │ [ ] Enable DisplayPort CEC-Tunneling-over-AUX HDMI support │ │
│ │ ARM devices ---- │ │
│ │ ACP (Audio CoProcessor) Configuration ---- │ │
│ │ Frame buffer Devices ---> │ │
│ │ Backlight & LCD device support ---> │ │
│ │ Console display driver support ---> │ │
│ │ [ ] Bootup logo ----
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Device Drivers / Graphic support / Device Drivers / Graphic support
| Code: |
│ │ [*] VGA text console │ │
│ │ [*] Enable Scrollback Buffer in System RAM │ │
│ │ (128) Scrollback Buffer Size (in KB) │ │
│ │ [ ] Persistent Scrollback History for each console by default │ │
│ │ (80) Initial number of console screen columns │ │
│ │ (25) Initial number of console screen rows │ │
│ │ [*] Framebuffer Console support │ │
│ │ [*] Map the console to the primary display device │ │
│ │ [ ] Framebuffer Console Rotation │ │
│ │ [ ] Framebuffer Console Deferred Takeover
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dmpogo
Advocate
Joined: 02 Sep 2004
Posts: 3468
Location: Canada
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| Posted: Tue Jun 02, 2020 4:56 am Post subject: |
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Well one my card is of yours generation, and one is even older - both on 340 drivers
What I am think is that under Gentoo nvidia kernel modules are compiled on a spot during installation, while how they are compiled for Ubuntu, who knows, may be even by Nvidia themselves.
So perhaps Gentoo version is 'more generic' and has some more generous build options, reserving extra space or whatever, maybe part of GPU memory is premapped to RAM (and it is shared, i,e can be used by other processes if needed). While in Ubuntu it is done on as-needed basis. I am just speculating |
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Tue Jun 02, 2020 4:29 pm Post subject: |
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Cool!
It will be very interesting to see memory consumption in your case:)
About nvidia and ubuntu ... may be ... anyway there is any reason for it |
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chugunium
n00b
Joined: 21 May 2020
Posts: 7
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| Posted: Wed Jun 03, 2020 9:00 am Post subject: |
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| dmpogo wrote: |
What I am think is that under Gentoo nvidia kernel modules are compiled on a spot during installation, while how they are compiled for Ubuntu, who knows, may be even by Nvidia themselves.
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I thought about it yesterday, and I have remembered one fact.
When I tested different cases trying to determine the reason of difference in memory consumption, there was the following case: I had copied Xubuntu kernel with modules (nvidia drivers was successfully installed in Xubuntu) to Gentoo and I had booted Gentoo with it. Memory consumption with Xubuntu kernel was the same as with Gentoo kernel - 500+mb (inside Gentoo environment). But inside Xubuntu environment memory consumption was 350-360mb. Interesting fact. So I think that there is a chance that there is some misconfiguration in preferences of my Gentoo system and it is a reason of high memory consumption.
I mean that there is a chance for me to find and fix it. Because if it is a special build for ubuntu, there is no hope |
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Kernel & Hardware
