No KSM after upgrade to 1.8

[ITN]

After upgrade to 1.8 KSM is not working.

> pveversion -v pve-manager: 1.8-17 (pve-manager/1.8/5948) running kernel: 2.6.35-1-pve pve-kernel-2.6.35-1-pve: 2.6.35-11 pve-kernel-2.6.24-8-pve: 2.6.24-16 qemu-server: 1.1-30 pve-firmware: 1.0-11 libpve-storage-perl: 1.0-17 vncterm: 0.9-2 vzctl: 3.0.26-1pve4 vzdump: 1.2-12 vzprocps: 2.0.11-2 vzquota: 3.0.11-1

How can i (re)install KSM

 

[tom]

looks like you miss some packages, just run:

apt-get update

apt-get install proxmox-ve-2.6.35

 

[ITN]

Thanks for help.
Its look like ksm is installed

pve-manager: 1.8-17 (pve-manager/1.8/5948) running kernel: 2.6.35-1-pve proxmox-ve-2.6.35: 1.8-11 pve-kernel-2.6.35-1-pve: 2.6.35-11 pve-kernel-2.6.24-8-pve: 2.6.24-16 qemu-server: 1.1-30 pve-firmware: 1.0-11 libpve-storage-perl: 1.0-17 vncterm: 0.9-2 vzctl: 3.0.26-1pve4 vzdump: 1.2-12 vzprocps: 2.0.11-2 vzquota: 3.0.11-1 pve-qemu-kvm: 0.14.0-3 ksm-control-daemon: 1.0-5

and running

> /etc/init.d/ksmtuned status KSM control daemon is running..

even so no effect

RAM Speicher (7.79GB/5.27GB)

before upgrade there was roughly 4.2GB

 

[tom]

do you get any pages shared?

See http://pve.proxmox.com/wiki/KSM#KSM_in_action

 

[ITN]

> cat /sys/kernel/mm/ksm/pages_sharing 0

but i have 5 nearly identical WIN2000 VMs and 2 WINXP VMs
there is no CPU-load from the ksmd

 

[tom]

should work. can you poweroff your winxp VM´s and give more RAM to them. any change? you need to wait some time.

 

[ITN]

No, all VMs are used.
But i have start a 3. XP-VM.

> cat /sys/kernel/mm/ksm/pages_sharing 78152

6.3GB... after some time 6.05GB

i stoped the 3. XP-VM

5.05GB... after some time 5.16GB
> cat /sys/kernel/mm/ksm/pages_sharing 78152

Its look like ksm only works for the XP-VMs after the upgrade.
Is that possible?

 

[tom]

KSM works on all KVM guests, but not all guest are the same.

 

[ITN]

Before the upgrade ksm works fine.
Anyone a idea?

 

[tom]

not sure if it helps for you but try the latest KVM 0.14.1 (from pvetest). this version will be moved to the stable repo next week (plan).

 

[ITN]

Ok, i test it, when its stable.
Till later then.

 

[ITN]

...but try the latest KVM 0.14.1...

It works again with KVM 0.14.1.

thnx

 

[vcp_ai]

Same problem here (KSM does not work). With two Wxp identical machines (restarted some times), I get pages_shared = 0 .

I can not find instruction to install a package from pvetest (to try KVM 0.14.1).
Can you point me to these instrucions ??

Best regards

Vicente

 

[dietmar]

I can not find instruction to install a package from pvetest (to try KVM 0.14.1).

We already moved that to the stable repository - just update.

 

[vcp_ai]

We already moved that to the stable repository - just update.

Thanks, will try this afternoon.