Commits
Merge branch 'tunnel_dst_caching' Tom Herbert says: ==================== ipv4: Cache dst in tunnels Version 3 of caching routes in tunnels. Addressed some comments from Eric in this series. There are two patches (variants) in the series: 1) One dst cached for each tunnel. 2) Percpu dst cache per tunnel to avoid false sharing Testing with GRE tunnels on a 32 CPU host with bnx2x (RSS support for GRE) shows a modest improvement in CPU utilization with these patches running 200 TCP_RR netperf clients. Without patches 71.22% CPU utilization 138/180/244 90/95/99% latencies 1.30465e+06 CPU/tps 18318 CPU/tps With patches 69.84% 142/186/249 90/95/99% latencies 1.30827e+06 18732 CPU/tps ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
