0

I provisioned two i2.8xlarge VMs on AWS, which should have 10G network as it said on the portal.

But when I run iperf3 test (with "-P 64", which means run with 64 TCP connections) on the VMs, it just gave me ~5Gbps throughput. At the same time when running iperf3, the icmp ping latency is relatively high (about 19ms).

//by the way, iperf3 with 1 TCP connection, gave me the best throughput number, which is about 7Gbps.

Do I miss any configuration/setting to my AWS deployment so that I am not able to get the high throughput and reasonable low latency?

Thanks!

Howard Shane
  • 926
  • 13
  • 28
  • 1
    "Do I miss any configuration/setting to my AWS deployment" Probably but as this information isn't in your question no one can answer it. I assume you have read this http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html – Vorsprung May 25 '16 at 13:26
  • Which region are the instances in, and are they in different availability zones? – Michael - sqlbot May 25 '16 at 16:58
  • Thanks - I will try SR-IOV. It is surprise that SR-IOV is not enabled by default. Also I am trying the TCP latency measurement by https://github.com/Microsoft/lagscope – Howard Shane Jul 25 '16 at 21:04

0 Answers0