Re: [RFC PATCH 00/29] Phase 2 of fib_trie updates

David Miller
2015-02-27T21:01:19Z

From: Alexander Duyck <alexander.duyck@gmail.com>
Date: Tue, 24 Feb 2015 21:12:48 -0800

> The problem is that the tnodes are now split over 2 cache lines. As a
> result in order to resize a node, or replace it with the leaf contained
> in the node you end up having to replace the parent of the node as well.

Therefore I still think that batching the rebalancing across all of the
per-device address removals will help a lot here.

This is true with or without your fib_trie modifications.