Limitare l'uso della Ram da parte di ZFS: Difference between revisions

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* Fare reboot, o impostare manualmente:
* Fare reboot, o impostare manualmente:
  echo "1073741824" | sudo tee /sys/module/zfs/parameters/zfs_arc_max
  echo "1073741824" | sudo tee /sys/module/zfs/parameters/zfs_arc_max
* Svuotarla:
  echo 3 > /proc/sys/vm/drop_caches


* Verificare:
* Verificare:
Line 30: Line 33:
*[http://serverfault.com/questions/581669/why-isnt-the-arc-max-setting-honoured-on-zfs-on-linux zfsonlinux - Why isn't the arc_max setting honoured on ZFS on Linux? - Server Fault]
*[http://serverfault.com/questions/581669/why-isnt-the-arc-max-setting-honoured-on-zfs-on-linux zfsonlinux - Why isn't the arc_max setting honoured on ZFS on Linux? - Server Fault]
*[https://bbs.archlinux.org/viewtopic.php?id=171559 Excessive memory use with ZFS [SOLVED sort of] / Networking, Server, and Protection / Arch Linux Forums]
*[https://bbs.archlinux.org/viewtopic.php?id=171559 Excessive memory use with ZFS [SOLVED sort of] / Networking, Server, and Protection / Arch Linux Forums]
*[https://forum.proxmox.com/threads/disable-zfs-arc-or-limiting-it.77845/ (1) Disable ZFS ARC or limiting it | Proxmox Support Forum]

Revision as of 17:41, 13 February 2023

  • Zfs utilizza per la cache in lettura tutt ala Ram disponibile.
  • Se si vuole limitare, scommentare il valore voluto:


cat <<EOFile | sudo tee /etc/modprobe.d/zfs.conf
#1GB
options zfs zfs_arc_max=1073741824
#options zfs zfs_arc_max=2147483648
#options zfs zfs_arc_max=3221225472
#options zfs zfs_arc_max=4294967296
EOFile

cat /etc/modprobe.d/zfs.conf
  • Aggiornare l'initird:
sudo update-initramfs -u -k all
  • Fare reboot, o impostare manualmente:
echo "1073741824" | sudo tee /sys/module/zfs/parameters/zfs_arc_max
  • Svuotarla:
 echo 3 > /proc/sys/vm/drop_caches
  • Verificare:
cat  /sys/module/zfs/parameters/zfs_arc_max

1073741824

Riferimenti

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