Mostly looking for low latency. >The "good" news is that most bare metal hosts ... Thank you. Will checkout references. The system I'm working on, for the I/

Mostly looking for low latency. >The "good" news is that most bare metal hosts ... Thank you. Will checkout references. The system I'm working on, for the I/O part, will be a rewrite of: https://www.usenix.org/system/files/nsdi19-kalia.pdf https://www.usenix.org/system/files/nsdi19-kalia.pdf The idea there is that not so many UDP packets are lost so, with a little help in congestion and packet loss, you can get UDP speed reliably. DPDK, even on a virtualized NIC like AWS, can enqueue UDP packets in ~500ns if the NIC's TXQ isn't full. So compared to, for example, https://blog.cloudflare.com/how-to-receive-a-million-packets/ https://blog.cloudflare.com/how-to-receive-a-million-packets... you can get a lot more done in a lot less resources than kernel based work. But as I say AWS are virtualized NICs. Which is why I was asking for options for bare metal with regular-old-NICs on the PCI bus. So although developing on AWS spot instances is pretty seamless it seems like it defeats the point of using DPDK which I guess would shine even brighter if the virtualized layer was not in the way. And, no, I have not tried EFA although I've definitely seen it on AWS. Thank you for time and response.