Messages in this thread | | | Date | Mon, 03 Mar 2003 09:56:41 -0800 (PST) | Subject | Re: anyone ever done multicast AF_UNIX sockets? | From | "David S. Miller" <> |
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From: Chris Friesen <cfriesen@nortelnetworks.com> Date: Mon, 03 Mar 2003 13:07:45 -0500
Suppose I have a process that waits on UDP packets, the unified local IPC that we're discussing, other unix sockets, and stdin. It's awfully nice if the local IPC can be handled using the same select/poll mechanism as all the other messaging.
So use UDP, you still haven't backed up your performance claims. Experiment, set the SO_NO_CHECK socket option to "1" and see if that makes a difference performance wise for local clients.
But if performance is "so important", then you shouldn't really be shying away from the shared memory suggestion and nothing is going to top that (it eliminates all the copies, using flat out AF_UNIX over UDP only truly eliminates some header processing, nothing more, the copies are still there with AF_UNIX). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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