On Feb 22, 2015, at 4:02 PM, Stephen Hemminger <stephen at networkplumber.org> wrote: > Use userspace RCU? or BSD RB_TREE Thanks Stephen, I think the RB_TREE stuff is single threaded mostly. But user-space RCU looks quite good indeed, I didn't know somebody ported it out of the kernel. I'll check it out. Matthew.