[pve-devel] The network performance future for VMs

[Alexandre DERUMIER]

>>So now my question is if DPDK can be activated also with the Linux stack?.

I need to dig a little more about this.
Intel seem to push the ovs-dpdk in all conferenfece I have see.
(Seem to be easy with vhost-user virtual network card, and this one can't work with linux bridge, because it's userland)


I'm not sure, but maybe dpkg on linux stack can only work with host physical interfaces and not qemu virtual interfaces.



----- Mail original -----
De: "Cesar Peschiera" <brain at click.com.py>
À: "aderumier" <aderumier at odiso.com>
Cc: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mardi 18 Août 2015 21:25:46
Objet: Re: [pve-devel] The network performance future for VMs

Oh, ok. 

In the past, i had problems with DRBD 8.4.5 when OVS is enabled, so i had 
that change my setup from OVS to the Linux stack, after of it, i had no more 
problems with DRBD. 

About of the problem with OVS and DRBD, i did not test in depth the problem 
(in the season of preproduction phase), but if i not bad remember, maybe the 
problem appears when "OVS Intport" is enabled, or maybe only when OVS is 
enabled in the setup. 

I was using PVE 3.3 

So now my question is if DPDK can be activated also with the Linux stack?. 

----- Original Message ----- 
From: "Alexandre DERUMIER" <aderumier at odiso.com> 
To: "Cesar Peschiera" <brain at click.com.py> 
Cc: "pve-devel" <pve-devel at pve.proxmox.com> 
Sent: Tuesday, August 18, 2015 8:57 AM 
Subject: Re: [pve-devel] The network performance future for VMs 


>>So, i would like to ask about of the future of PVE in network performance 
>>terms. 

dpdk will be implemented in openvswitch through vhost-user, 
I'm waiting for ovs 2.4 to look at this. 


----- Mail original ----- 
De: "Cesar Peschiera" <brain at click.com.py> 
À: "pve-devel" <pve-devel at pve.proxmox.com> 
Envoyé: Mardi 18 Août 2015 13:00:59 
Objet: [pve-devel] The network performance future for VMs 

Hi developers of PVE 

I would like to talk about of the network speed for VMs: 

I see in this link (Web official of Red Hat): 
https://videos.cdn.redhat.com/summit2015/presentations/12752_red-hat-enterprise-virtualization-hypervisor-kvm-now-in-the-future.pdf 

In the page 19 of this pdf, i see a interesting info: 
Network Function Virtualization (NFV) 
Throughput and Packets/sec "RHEL7.x + DPDK (Data Plane Development Kit)": 

Millons packets per second: 
KVM = 208 
Docker = 215 
Bare-metal = 218 
HW maximum = 225 

Between KVM and Bare-metal, the difference is little: 10 

Also i see a list of HW NICs compatibility on this link: 
http://dpdk.org/doc/nics 

So, i would like to ask about of the future of PVE in network performance 
terms. 

Best regards 
Cesar 

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