On Tue, 26 Aug 2008, Ilpo Järvinen wrote: > ListenOverflows might explain this (it can't be ListenDrops since it's > equal to ListenOverflows and both get incremented on overflow). Are you > perhaps short on workers at the userspace server? It would be nice to > capture those mibs often enough (eg., once per 1s with timestamps) during > the stall to see what actually gets incremented during the event because > there's currently so much haystack that finding the needle gets impossible > (ListenOverflows 47410) :-). Also, the corresponding tcpdump would be > needed to match the events. Alternatively, you could strace the userspace to see that it keeps accept()'ing the connections. -- i.
