Eric Dumazet wrote: > [PATCH] netfilter: Get rid of central rwlock in tcp conntracking > > TCP connection tracking suffers of huge contention on a global rwlock, > used to protect tcp conntracking state. > > As each tcp conntrack state have no relations between each others, we > can switch to fine grained lock. Using an array of spinlocks avoids > enlarging size of connection tracking structures, yet giving reasonable > fanout. > > tcp_print_conntrack() doesnt need to lock anything to read > ct->proto.tcp.state, so speedup /proc/net/ip_conntrack as well. > > nf_conntrack_hash_rnd_initted & nf_conntrack_hash_rnd declared read_mostly > This looks good to me. Rick, would you like to give it a try? I'll convert the remaining conntrack protocols when applying it. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
