[pve-devel] [PATCH] add numa options

Alexandre DERUMIER aderumier at odiso.com
Thu Jan 8 07:48:33 CET 2015


>>Anyway, the change was for much better. ... :-)
>>...Many thanks for the patches !!!

In this case, auto numa balancing is doing the job.

(Note that numa: 1, should do exactly the same thing that the 2numa lines)

Great that it's working fine :)

Thanks for the tests !


----- Mail original -----
De: "Cesar Peschiera" <brain at click.com.py>
À: "aderumier" <aderumier at odiso.com>
Cc: "dietmar" <dietmar at proxmox.com>, "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mercredi 7 Janvier 2015 20:47:00
Objet: Re: [pve-devel] [PATCH] add numa options

I have changed the vm config file according your suggestions after of apply 
your patches: 
numa0: memory=124416,policy=bind 
numa1: memory=124416,policy=bind 

And always with: 
... 
sockets: 2 
cores: 20 
cpu: host 
hotplug: 1 
memory: 248832 
tablet: 0 
... 

Anyway, the change was for much better. ... :-) 
...Many thanks for the patches !!! 

----- Original Message ----- 
From: "Alexandre DERUMIER" <aderumier at odiso.com> 
To: "Cesar Peschiera" <brain at click.com.py> 
Cc: "dietmar" <dietmar at proxmox.com>; "pve-devel" <pve-devel at pve.proxmox.com> 
Sent: Wednesday, January 07, 2015 4:59 AM 
Subject: Re: [pve-devel] [PATCH] add numa options 


>>Many thanks for your reply, and please, let me to do a question: 
>>Then, why I have a great difference of performance between the before and 
>>the after of install your patches if i never touched the kernel nor his 
>>configuration? (the patches installed are: pve-qemu-kvm_2.2-2_amd64.deb 
>>and 
>>qemu-server_3.3-5_amd64.deb) 

Maybe qemu 2.2 optimisations ? If you don't have change vm config file, this 
can be the only explain. 


----- Mail original ----- 
De: "Cesar Peschiera" <brain at click.com.py> 
À: "aderumier" <aderumier at odiso.com> 
Cc: "dietmar" <dietmar at proxmox.com>, "pve-devel" <pve-devel at pve.proxmox.com> 
Envoyé: Mardi 6 Janvier 2015 23:53:28 
Objet: Re: [pve-devel] [PATCH] add numa options 

>But that don't mean that physically, the virtual cpus|numa nodes will be 
>mapped to correct physical cpus. 

Many thanks for your reply, and please, let me to do a question: 
Then, why I have a great difference of performance between the before and 
the after of install your patches if i never touched the kernel nor his 
configuration? (the patches installed are: pve-qemu-kvm_2.2-2_amd64.deb and 
qemu-server_3.3-5_amd64.deb) 

Best regards 
Cesar 


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