In article <3D6EBE50.3090209@candelatech.com> you wrote: > What does it use? And btw, I'd hash get-by-name too. to get a list of interfaces it first tries to read with SIOCGIFCONF a list of all interfaces in a single read into a buffer which has room for 30 entries (and increases the buffer *= 2 in case it was too small). It also linearly reads proc/net/dev and merges the info from there into the list of interfaces from above. Then it does a whole lot of ioctls on the name of that interface to get protocol family dependend info. I think this is the slowest thing. the SIOCGIFCONF used to take a lot of time, cause the buffer was increasing more slowly. Someone could try to use even more aggresive algo. or just use a bigger start value. I havent benchmarked it, but I guess it it the getting of all the protocol params which slows it. Greetings Bernd y - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
