[galangalalgol]

Is there a good comparison of these technologies? I've used dpdk for high rate streaming data and it roughly doubled my throughput over 10GE. I hear people using things like dma over Ethernet, and it sounds like there are several competing technologies. My use case is to get something from phy layer into gpu memory as fast as possible, latency is less important than throughput.

[benou]

What you're looking for is RDMA. It was mostly restricted to Infiniband (IB) back in the days, but nowadays you probably want RoCEv2. You can look at iWARP too but I think nowadays RoCE won.

In any case, the standard software API for RDMA is ibverbs. All adapters supporting RDMA (be it IB, RoCE or iWARP) will expose it. You can get cloud instances with RDMA on AWS and Azure.

[shaklee3]

dpdk has rdma/GPUdirect now as well