El vie., 14 ago. 2020 a las 16:32, Chris Murphy (<li...@colorremedies.com>)
escribió:
> On Fri, Aug 14, 2020 at 12:42 PM Sergio Belkin <seb...@gmail.com> wrote:
> >
> > 2 comments:
> > - I don't use disk-based swap, only zram.
> > - It happened again, and in this case there is no Virtual Machine nor
> Zoom app running:
> > ago 14 15:08:37 dublin.ireland.home earlyoom[888]: sending SIGTERM to
> process 2052260 uid 1000 "Web Content": badness 322, VmRSS 447 MiB
> > ago 14 15:08:40 dublin.ireland.home earlyoom[888]: process exited after
> 2.7 seconds
> > ago 14 15:12:15 dublin.ireland.home earlyoom[888]: mem avail: 395 of
> 15887 MiB ( 2.49%), swap free: 0 of 4095 MiB ( 0.00%)
> > ago 14 15:12:15 dublin.ireland.home earlyoom[888]: low memory! at or
> below SIGTERM limits: mem 2.52%, swap 10.00%
> > ago 14 15:12:15 dublin.ireland.home earlyoom[888]: sending SIGTERM to
> process 2055755 uid 1000 "Web Content": badness 319, VmRSS 392 MiB
> > ago 14 15:12:17 dublin.ireland.home earlyoom[888]: process exited after
> 2.8 seconds
> > ago 14 15:28:35 dublin.ireland.home earlyoom[888]: mem avail: 371 of
> 15887 MiB ( 2.34%), swap free: 0 of 4095 MiB ( 0.00%)
> > ago 14 15:28:35 dublin.ireland.home earlyoom[888]: low memory! at or
> below SIGTERM limits: mem 2.52%, swap 10.00%
> > ago 14 15:28:35 dublin.ireland.home earlyoom[888]: sending SIGTERM to
> process 2062157 uid 1000 "Web Content": badness 327, VmRSS 553 MiB
> > ago 14 15:28:37 dublin.ireland.home earlyoom[888]: process exited after
> 2.3 seconds
>
>
> What's the workload? What is filling up 4G of swap with inactive
> pages such that none of them are being freed? The usual case is
> available memory is well below the watermark before swap has filled.
> But in this case, it's the opposite.
>
Good question this the output of he last lines of smem -c "name swap" -s
swap -k -t
kaccess 4.1M
kded5 4.5M
cadmus 5.0M
konsole 5.4M
xdg-desktop-por 10.6M
mount.ntfs 26.1M
Xorg 30.0M
mysqld 36.6M
plasmashell 36.9M
packagekitd 239.6M
----------------------------------
547.3M
>
> As sigterm is happening, memory available is still dropping. Some
> process is still taking up more memory, but has low enough badness
> that its not being terminated. It could be one of the exempt
> processes.
>
> >
> > Perhaps this ps_mem snippet is useful:
> > <snip
> > Private + Shared = RAM used Program
> > </snip>
> > ....
> > <snip>
> > 294.8 MiB + 4.7 MiB = 299.4 MiB telegram-desktop.bin
> > 290.3 MiB + 22.1 MiB = 312.4 MiB rocketchat-desktop (5)
> > 323.8 MiB + 9.5 MiB = 333.2 MiB kwin_x11 (9)
> > 344.5 MiB + 1.4 MiB = 345.8 MiB nextcloud
> > 373.2 MiB + 21.2 MiB = 394.4 MiB spotify (5)
> > 416.6 MiB + 1.3 MiB = 417.9 MiB plasma-discover
> > 448.5 MiB + 16.6 MiB = 465.2 MiB MainThread
> > 892.8 MiB + 444.5 KiB = 893.2 MiB packagekitd
> > 1.0 GiB + 8.6 MiB = 1.0 GiB plasmashell
> > 1.9 GiB + 81.0 MiB = 1.9 GiB Web Content (9)
>
> 892M for packagekit? Seems excessive. I wonder what's up with that. It
> is an exempt process. On my current system it's 1/2 that amount, which
> is in turn twice that of GNOME shell. Hmm.
>
systemctl status packagekit
● packagekit.service - PackageKit Daemon
Loaded: loaded (/usr/lib/systemd/system/packagekit.service; static;
vendor preset: disabled)
Active: active (running) since Thu 2020-07-30 15:40:51 -03; 2 weeks 1
days ago
Main PID: 5393 (packagekitd)
Tasks: 12 (limit: 19015)
Memory: 903.2M
CPU: 9min 6.976s
CGroup: /system.slice/packagekit.service
├─ 5393 /usr/libexec/packagekitd
├─2019772 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/fedora-modular-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019790 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/updates-modular-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019808 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/google-chrome-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019819 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/updates-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019838 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/rpmfusion-free-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019857 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/ring-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019868 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/rpmfusion-free-updates-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
├─2019885 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/fedora-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
└─2019926 gpg-agent --homedir
/var/cache/PackageKit/32/metadata/fedora-cisco-openh264-32-x86_64.tmp/gpgdir
--use-standard-socket --daemon
ago 13 00:52:26 dublin.ireland.home PackageKit[5393]: uid 1000 is trying to
obtain org.freedesktop.packagekit.system-sources-refresh auth
(only_trusted:0)
ago 13 00:52:26 dublin.ireland.home PackageKit[5393]: uid 1000 obtained
auth for org.freedesktop.packagekit.system-sources-refresh
ago 13 00:53:48 dublin.ireland.home PackageKit[5393]: refresh-cache
transaction /2893_cebbbeab from uid 1000 finished with success after 81694ms
ago 13 00:53:49 dublin.ireland.home PackageKit[5393]: get-updates
transaction /2894_ebbbbbee from uid 1000 finished with success after 999ms
ago 13 02:10:12 dublin.ireland.home PackageKit[5393]: get-updates
transaction /2895_cceeeece from uid 1000 finished with success after 208ms
ago 14 00:55:03 dublin.ireland.home PackageKit[5393]: uid 1000 is trying to
obtain org.freedesktop.packagekit.system-sources-refresh auth
(only_trusted:0)
ago 14 00:55:03 dublin.ireland.home PackageKit[5393]: uid 1000 obtained
auth for org.freedesktop.packagekit.system-sources-refresh
ago 14 00:56:36 dublin.ireland.home PackageKit[5393]: refresh-cache
transaction /2896_eaabbbce from uid 1000 finished with success after 92165ms
ago 14 00:56:37 dublin.ireland.home PackageKit[5393]: get-updates
transaction /2897_eebaecab from uid 1000 finished with success after 1062ms
ago 14 01:43:43 dublin.ireland.home PackageKit[5393]: get-updates
transaction /2898_bcabedcb from uid 1000 finished with success after 235ms
Now I've restarted packagekit and it outputs:
● packagekit.service - PackageKit Daemon
Loaded: loaded (/usr/lib/systemd/system/packagekit.service; static;
vendor preset: disabled)
Active: active (running) since Fri 2020-08-14 17:58:31 -03; 44s ago
Main PID: 2073306 (packagekitd)
Tasks: 3 (limit: 19015)
Memory: 11.2M
CPU: 100ms
CGroup: /system.slice/packagekit.service
└─2073306 /usr/libexec/packagekitd
ago 14 17:58:31 dublin.ireland.home systemd[1]: Starting PackageKit
Daemon...
ago 14 17:58:31 dublin.ireland.home PackageKit[2073306]: daemon start
ago 14 17:58:31 dublin.ireland.home systemd[1]: Started PackageKit Daemon.
However swap usage is still high :
free -m
total used free shared buff/cache
available
Mem: 15887 8577 1187 4587 6123
2382
Swap: 4095 3854 241
It's weird, isn't it?
> Well I'll report soon, any idea (remember I have 16 GB of RAM with 4G of
zram-based swap) will be welcome
Very common. The defaults need to serve this use case.
--
Chris Murphy
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--
--
Sergio Belkin
LPIC-2 Certified - http://www.lpi.org
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