From: David Ahern <dsah...@gmail.com> Date: Thu, 11 Oct 2018 12:44:49 -0600
> I disagree with your overall premise of bpf the end-all hammer. It is a > tool but not the only tool. For starters, you are proposing building the > message, run the filter on it, and potentially back the message up to > drop the recently added piece because the filter does not want it > included. That is still wasting a lot of cpu cycles to build and drop. I > am thinking about scale to 1 million routes -- I do not need the dump > loop building a message for 1 million entries only to drop 99% of them. > That is crazy. I completely agree. Once you've composed the message, the whole point of filtering is lost.