exclude zfs cache from ksm

[efeu]

Hi,
I noticed that while there is heavy load on file transmitions on zfs (like restoring a VM) the ksm process is slowing down the whole system heavily.
I reserved 35GB RAM for zfs, and forsure it's the task of ksm to scan the memory pages, but it should not scan the zfs mem-cache-pages.
Any solution here?

proxmox-ve: 4.3-66 (running kernel: 4.4.6-1-pve)
pve-manager: 4.3-3 (running version: 4.3-3/557191d3)
pve-kernel-4.4.6-1-pve: 4.4.6-48
pve-kernel-4.4.19-1-pve: 4.4.19-66
lvm2: 2.02.116-pve3
corosync-pve: 2.4.0-1
libqb0: 1.0-1
pve-cluster: 4.0-46
qemu-server: 4.0-91
pve-firmware: 1.1-9
libpve-common-perl: 4.0-75
libpve-access-control: 4.0-19
libpve-storage-perl: 4.0-66
pve-libspice-server1: 0.12.8-1
vncterm: 1.2-1
pve-qemu-kvm: 2.6.2-2
pve-container: 1.0-78
pve-firewall: 2.0-31
pve-ha-manager: 1.0-35
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u2
lxc-pve: 2.0.5-1
lxcfs: 2.0.4-pve1
criu: 1.6.0-1
novnc-pve: 0.5-8
zfsutils: 0.6.5.7-pve10~bpo80

 

[wolfgang]

Hi,

AFIK you can only turn it on or off.
There are no settings to exclude application or memory areas.