From: David S. Miller Date: Sun, 16 Sep 2018 22:30:23 +0000 (-0700) Subject: Merge branch 'act_police-lockless-data-path' X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=50676de486791afa7ce6f90e31d9951f3d4b04d5;p=openwrt%2Fstaging%2Fblogic.git Merge branch 'act_police-lockless-data-path' Davide Caratti says: ==================== net/sched: act_police: lockless data path the data path of 'police' action can be faster if we avoid using spinlocks: - patch 1 converts act_police to use per-cpu counters - patch 2 lets act_police use RCU to access its configuration data. test procedure (using pktgen from https://github.com/netoptimizer): # ip link add name eth1 type dummy # ip link set dev eth1 up # tc qdisc add dev eth1 clsact # tc filter add dev eth1 egress matchall action police \ > rate 2gbit burst 100k conform-exceed pass/pass index 100 # for c in 1 2 4; do > ./pktgen_bench_xmit_mode_queue_xmit.sh -v -s 64 -t $c -n 5000000 -i eth1 > done test results (avg. pps/thread): $c | before patch | after patch | improvement ----+--------------+--------------+------------- 1 | 3518448 | 3591240 | irrelevant 2 | 3070065 | 3383393 | 10% 4 | 1540969 | 3238385 | 110% ==================== Signed-off-by: David S. Miller --- 50676de486791afa7ce6f90e31d9951f3d4b04d5