[pve-devel] [PATCH] add virtio-vhost-user nic support

[Alexandre DERUMIER]

BTW,

linux kernel guys are working to fill the gap with dpdk, but the road seem to be long

Here an interesting 2016 presentation from netdev conf

http://people.netfilter.org/hawk/presentations/NetDev1.1_2016/net_performance_BoF.pdf

----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "aderumier" <aderumier at odiso.com>
Cc: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mercredi 4 Mai 2016 06:03:06
Objet: Re: [pve-devel] [PATCH] add virtio-vhost-user nic support

> Why bypassing the kernel ?: 
> Current kernel stack have some limitations, around 1mpps (millions packets/s) 
> vs 10mpps for dpdk by cpu core, so for virtual routers and firewall 
> (synflood,udpflood of 64bytes), this is really needed) 

But the OVS bridge still pass all traffic to the kernel, because we use 
in-kernel 
network card drivers? 

Anyways, I guess you have already done some performance benchmarks? Is 
it really faster?