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References: <07951a6a-bce5-6224-600c-25462b88334d@matrixscience.com>
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From: John <cuorie+proxmox@gmail.com>
Date: Wed, 26 May 2021 09:37:07 -0400
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To: Proxmox VE user list <pve-user@lists.proxmox.com>
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Subject: Re: [PVE-User] swappiness on Debian container
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Not sure this is a best practice, but when creating containers, I set the
swap amount to 0.
-John

On Wed, May 26, 2021 at 7:51 AM Adam Weremczuk <adamw@matrixscience.com>
wrote:

> Hi all,
>
> Proxmox 6.2-6, one of containers (Debian 9.9) is swapping memory even
> though it has plenty of unused RAM left.
>
> I've tried suggestions from:
>
>
> https://askubuntu.com/questions/157793/why-is-swap-being-used-even-though-i-have-plenty-of-free-ram
>
> https://askubuntu.com/questions/192304/changing-swappiness-in-sysctl-conf-doesnt-work-for-me
>
> to change the default 60 to 10, rebooted multiple times but none of them
> is taking an effect.
>
> I've tried switching between privileged / unprivileged container as well
> as enable nesting. Still no joy:
>
> $ sudo sysctl -p
> sysctl: setting key "vm.swappiness": Read-only file system
>
> $ mount
> ms-zfs-pool/subvol-101-disk-0 on / type zfs (rw,xattr,posixacl)
> none on /dev type tmpfs (rw,relatime,size=492k,mode=755)
> proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
> proc on /proc/sys/net type proc (rw,nosuid,nodev,noexec,relatime)
> proc on /proc/sys type proc (ro,nosuid,nodev,noexec,relatime)
> proc on /proc/sysrq-trigger type proc (ro,nosuid,nodev,noexec,relatime)
> sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
> sysfs on /sys type sysfs (ro,nosuid,nodev,noexec,relatime)
> sysfs on /sys/devices/virtual/net type sysfs (rw,relatime)
> sysfs on /sys/devices/virtual/net type sysfs
> (rw,nosuid,nodev,noexec,relatime)
> fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
> proc on /dev/.lxc/proc type proc (rw,relatime)
> sys on /dev/.lxc/sys type sysfs (rw,relatime)
> lxcfs on /proc/cpuinfo type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/diskstats type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/loadavg type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/meminfo type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/stat type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/swaps type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /proc/uptime type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> lxcfs on /sys/devices/system/cpu/online type fuse.lxcfs
> (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
> devpts on /dev/console type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
> devpts on /dev/pts type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1024)
> devpts on /dev/ptmx type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1024)
> devpts on /dev/tty1 type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1024)
> devpts on /dev/tty2 type devpts
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1024)
> tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
> tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
> tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
> tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
> cgroup on /sys/fs/cgroup/systemd type cgroup
> (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
> cgroup on /sys/fs/cgroup/blkio type cgroup
> (rw,nosuid,nodev,noexec,relatime,blkio)
> cgroup on /sys/fs/cgroup/memory type cgroup
> (rw,nosuid,nodev,noexec,relatime,memory)
> cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup
> (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
> cgroup on /sys/fs/cgroup/perf_event type cgroup
> (rw,nosuid,nodev,noexec,relatime,perf_event)
> cgroup on /sys/fs/cgroup/cpuset type cgroup
> (rw,nosuid,nodev,noexec,relatime,cpuset)
> cgroup on /sys/fs/cgroup/hugetlb type cgroup
> (rw,nosuid,nodev,noexec,relatime,hugetlb)
> cgroup on /sys/fs/cgroup/freezer type cgroup
> (rw,nosuid,nodev,noexec,relatime,freezer)
> cgroup on /sys/fs/cgroup/devices type cgroup
> (rw,nosuid,nodev,noexec,relatime,devices)
> cgroup on /sys/fs/cgroup/pids type cgroup
> (rw,nosuid,nodev,noexec,relatime,pids)
> cgroup on /sys/fs/cgroup/rdma type cgroup
> (rw,nosuid,nodev,noexec,relatime,rdma)
> cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup
> (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
> mqueue on /dev/mqueue type mqueue (rw,relatime)
> hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
>
> Any ideas?
>
> Regards,
> Adam
>
>
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