Hi, I think you're right, the nic is not offloading because testing the instances I see a process ksoftirqd/0 with high CPU on compute hosts.
Doing iperf on baremetal I don't see this process with high CPU. Is my assumption right? Thanks On Wed, Jan 21, 2015 at 3:59 PM, Robert van Leeuwen < robert.vanleeu...@spilgames.com> wrote: > >is there a way to improve network performance on my instances with > VXLAN? > >I changed the MTU on physical interfaces to 1600, still performance it's > lower than in baremetal hosts: > > Do you have VXLAN hardware offloading on the NIC? > I think you are hitting the maximum speed you can do encapsulation in > software. > You will need network cards that can do VXLAN offloading to go to similar > speed as hardware (10Gbit). > > Cheers, > Robert van Leeuwen > > >
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