How to synchronize memory usage in podman-stats and systemd?

[Constantin1489]

Hi, I noticed memory usage of between the container in podman-stats and systemd service(made by podman-generate-systemd ) status is different.

How can I properly synchronize?

42.84MB

$podman stats
af8cfa352332  taskwarrior-webui  0.01%       42.84MB / 12.26GB  0.35%       2.42kB / 430B  0B / 0B     23          959.476ms   0.01%

80.9M

[shelf@localhost ~]$ systemctl --user status container-taskwarrior-webui.service 
● container-taskwarrior-webui.service - Podman container-287516d806e5dec732bb2152568304950343e98c75cd05f8ade36826a2d292e2.service
     Loaded: loaded (/home/shelf/.config/systemd/user/container-taskwarrior-webui.service; enabled; preset: disabled)
     Active: active (running) since Thu 2023-10-26 01:19:24 KST; 2h 19min ago
       Docs: man:podman-generate-systemd(1)
   Main PID: 1801 (conmon)
      Tasks: 16 (limit: 74601)
     Memory: 80.9M
        CPU: 695ms
     CGroup: /user.slice/user-1000.slice/[email protected]/app.slice/container-taskwarrior-webui.service
             ├─1735 /usr/bin/slirp4netns --disable-host-loopback --mtu=65520 --enable-sandbox --enable-seccomp --enable-ipv6 -c -e 3 -r 4 --netns-type=path /run/user/1000/netns/netns-cb5acc65-4f8a-650e-6ae6-68e4fc909e11 tap0
             ├─1738 rootlessport
             ├─1745 rootlessport-child
             ├─1777 /usr/bin/fuse-overlayfs -o "lowerdir=/home/shelf/.local/share/containers/storage/overlay/l/24YP66TL5NQBZOG6ZSFAGPT42L:/home/shelf/.local/share/containers/storage/overlay/l/6OIWR3J24EEIAHQS7UBWPF6XQ4:/home>
             └─1801 /usr/bin/conmon --api-version 1 -c af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0 -u af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0 -r /usr/bin/crun -b /home/shelf/.local/shar>

Oct 26 01:19:23 localhost.localdomain podman[1636]: 2023-10-26 01:19:23.144002301 +0900 KST m=+1.152343622 container create af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0 (image=docker.io/dcsunset/taskwarrior-webui:lates>
Oct 26 01:19:24 localhost.localdomain podman[1636]: 2023-10-26 01:19:24.368842932 +0900 KST m=+2.377184246 container init af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0 (image=docker.io/dcsunset/taskwarrior-webui:latest,>
Oct 26 01:19:24 localhost.localdomain systemd[835]: Started Podman container-287516d806e5dec732bb2152568304950343e98c75cd05f8ade36826a2d292e2.service.
Oct 26 01:19:24 localhost.localdomain podman[1636]: 2023-10-26 01:19:24.649773078 +0900 KST m=+2.658114401 container start af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0 (image=docker.io/dcsunset/taskwarrior-webui:latest>
Oct 26 01:19:24 localhost.localdomain podman[1636]: af8cfa352332489ffaa29c82efd7ecf6e6dbb0d90705be6b559203a7f45bb8a0
Oct 26 01:19:46 localhost.localdomain taskwarrior-webui[1801]: 
Oct 26 01:19:46 localhost.localdomain taskwarrior-webui[1801]: > [email protected] start
Oct 26 01:19:46 localhost.localdomain taskwarrior-webui[1801]: > node ./dist/app.js
Oct 26 01:19:46 localhost.localdomain taskwarrior-webui[1801]: 
Oct 26 01:19:50 localhost.localdomain taskwarrior-webui[1801]: Server listening on http://0.0.0.0:3000

podman info

host:
  arch: amd64
  buildahVersion: 1.29.0
  cgroupControllers:
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.7-1.el9_2.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.7, commit: e6cdc9a4d6319e039efa13e532c1e58b713c904d'
  cpuUtilization:
    idlePercent: 98.67
    systemPercent: 0.67
    userPercent: 0.65
  cpus: 3
  distribution:
    distribution: '"rocky"'
    version: "9.2"
  eventLogger: journald
  hostname: localhost.localdomain
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
  kernel: 5.14.0-284.30.1.el9_2.x86_64
  linkmode: dynamic
  logDriver: journald
  memFree: 9772126208
  memTotal: 12264099840
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.8.4-1.el9_2.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.8.4
      commit: 5a8fa99a5e41facba2eda4af12fa26313918805b
      rundir: /run/user/1000/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    path: /run/user/1000/podman/podman.sock
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-3.el9.x86_64
    version: |-
      slirp4netns version 1.2.0
      commit: 656041d45cfca7a4176f6b7eed9e4fe6c11e8383
      libslirp: 4.4.0
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.2
  swapFree: 2147479552
  swapTotal: 2147479552
  uptime: 2h 53m 12.00s (Approximately 0.08 days)
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  search:
  - docker.io
  - registry.access.redhat.com
  - registry.redhat.io
store:
  configFile: /home/shelf/.config/containers/storage.conf
  containerStore:
    number: 5
    paused: 0
    running: 4
    stopped: 1
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/shelf/.local/share/containers/storage
  graphRootAllocated: 28976349184
  graphRootUsed: 23219818496
  graphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 9
  runRoot: /run/user/1000/containers
  transientStore: false
  volumePath: /home/shelf/.local/share/containers/storage/volumes
version:
  APIVersion: 4.4.1
  Built: 1695770580
  BuiltTime: Wed Sep 27 08:23:00 2023
  GitCommit: ""
  GoVersion: go1.19.10
  Os: linux
  OsArch: linux/amd64
  Version: 4.4.1

This is the service file

# container-287516d806e5dec732bb2152568304950343e98c75cd05f8ade36826a2d292e2.service
# autogenerated by Podman 4.4.1
# Tue Aug 22 20:11:31 KST 2023

[Unit]
Description=Podman container-287516d806e5dec732bb2152568304950343e98c75cd05f8ade36826a2d292e2.service
Documentation=man:podman-generate-systemd(1)
Wants=network-online.target
After=network-online.target
RequiresMountsFor=%t/containers

[Service]
Environment=PODMAN_SYSTEMD_UNIT=%n
Restart=on-failure
TimeoutStopSec=70
ExecStart=/usr/bin/podman run \
	--cidfile=%t/%n.ctr-id \
	--cgroups=no-conmon \
	--rm \
	--sdnotify=conmon \
	--replace \
	-idt \
	-p 8894:80 \
	--name taskwarrior-webui \
	-v /home/shelf/.taskrc:/.taskrc:z \
	-v /home/shelf/.task:/.task:z dcsunset/taskwarrior-webui
ExecStop=/usr/bin/podman stop \
	--ignore -t 10 \
	--cidfile=%t/%n.ctr-id
ExecStopPost=/usr/bin/podman rm \
	-f \
	--ignore -t 10 \
	--cidfile=%t/%n.ctr-id
Type=notify
NotifyAccess=all

[Install]
WantedBy=default.target