Messages in this thread |  | | | Subject | RE: [PATCH 0/10] af_unix: add multicast and filtering features to AF_UNIX | | From | Eric Dumazet <> | | Date | Thu, 01 Mar 2012 04:59:35 -0800 |
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Le jeudi 01 mars 2012 à 13:50 +0100, Rodrigo Moya a écrit : > the main problem in D-Bus we are trying to solve is the context > switches, since right now, there is a daemon, which listens on a UNIX > socket, and all traffic in the bus goes through it, and then the daemon > has to route the messages it gets on that socket to the corresponding > place(s). So, every time someone sends a message to D-Bus, since all > traffic goes through the daemon, dbus-daemon gets waked-up, which is one > of the biggest bottlenecks we are trying to fix. > > That's why we are thinking about using multicast with socket filters, so > that the daemon only gets traffic it cares about and thus is not waked > up and context switches don't happen when not needed. > > Using message queues, AFAICS, we would have the same problem, as the > daemon would create the message queue and would get all traffic, right? >
This is why I mentioned extensions.
Anyway, if you think multicast sockets is the way to go, then you could setup a virtual network just to be able to use AF_INET multicast.
Thats probably doable without kernel patching.
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