Kernel stack, bypass or RDMA

Metal 08

Choose

A storage client and server share one rack. Each request needs a round trip under 20 µs, and the parts may cost 300 USD/mo. The rack has a 100 USD/mo Ethernet switch. RDMA needs an InfiniBand switch at 500 USD/mo instead. Pick the network stack.

Goals

Not tested yet

99 of 100 requests finish faster than this.What the servers and services cost each month.What the servers and services cost each month.
Choose a design
Kernel TCP stack
Kernel bypass stack
RDMA over InfiniBand