Polling vs. Interrupt

Recently there is news reverberating across the interwebs that Tiny Linux kernel tweak could cut datacenter power use by 30% . The claim is based on this code commit detailed by the paper Kernel vs. User-Level Networking: Don't Throw Out the Stack with the Interrupts . The main idea is to mix the use of polling and interrupt driven I/O to get the best of both worlds. Polling is just busy looping…