I'm doing some experiments that are trying to simultaneously scaling the number of CPUs, and the number of processes and encountering getifaddrs() weaknesses.
Others have run into similar things in the past, e.g., http://lists.openwall.net/netdev/2014/01/23/119 and more relevant to my experiment: the findings behind the recent commit a3a77372. In my case, it looks like getifaddrs() doesnt even use the results of IFLA_INET6_STATS or IFLA_INET6_ICMP6STATS- from my scan of glibc, this information is ignored (it only looks at IFLA_STATS). Moreover, if I hack out all of snmp_fold_field() (so that it always returns 0), it helps my cpu utilization and scaling, and no errors are reported. So the question is- who uses IFLA_INET6_STATS/IFLA_INET6_ICMP6STATS? Is this intended for some ND/ripngd etc daemon? Doesnt seem to be documented in rtnetlink(7), and couldnt find any users in glibc, and google did not find any usage. --Sowmini -- 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
