On 07/02/15 09:07, Eric Dumazet wrote:
Final step for gact RCU operation :1) Use percpu stats 2) update lastuse only every clock tick 3) Remove spinlock acquisition, as it is no longer needed. Since this is the last contended lock in packet RX when tc gact is used, this gives impressive gain. My host with 8 RX queues was handling 5 Mpps before the patch, and more than 10 Mpps after patch. Tested: On receiver : IP=ip TC=tc dev=eth0 $TC qdisc del dev $dev ingress 2>/dev/null $TC qdisc add dev $dev ingress $TC filter del dev $dev root pref 10 2>/dev/null $TC filter del dev $dev pref 10 2>/dev/null tc filter add dev $dev est 1sec 4sec parent ffff: protocol ip prio 1 \ u32 match ip src 7.0.0.0/8 flowid 1:15 action drop Sender sends packets flood from 7/8 network
Very nice Eric;-> thanks. So now basic accept/drop should be flying ;-> Other really low hanging fruit is act_csum, vlan and skbedit. CCing the respective authors.
Signed-off-by: Eric Dumazet <eduma...@google.com> Cc: Alexei Starovoitov <a...@plumgrid.com> Cc: Jamal Hadi Salim <j...@mojatatu.com>
Acked-by: Jamal Hadi Salim <j...@mojatatu.com> cheers, jamal -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
