<div dir="ltr">Hi,<div><br></div><div>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.</div><div><br></div><div>Doing iperf on baremetal I don't see this process with high CPU.</div><div><br></div><div>Is my assumption right?</div><div><br></div><div>Thanks</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 21, 2015 at 3:59 PM, Robert van Leeuwen <span dir="ltr"><<a href="mailto:Robert.vanLeeuwen@spilgames.com" target="_blank">Robert.vanLeeuwen@spilgames.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt"><span class="">>is there a way to improve network performance on my instances with VXLAN?
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>I changed the MTU on physical interfaces to 1600, still performance it's lower than in baremetal hosts:
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Do you have VXLAN hardware offloading on the NIC?<br>
I think you are hitting the maximum speed you can do encapsulation in software.<br>
You will need network cards that can do VXLAN offloading to go to similar speed as hardware (10Gbit).<br>
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Cheers,<br>
Robert van Leeuwen<br>
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