From: Eric Dumazet <[EMAIL PROTECTED]> Date: Thu, 09 Feb 2006 16:16:54 +0100
> I had this idea after reading recent Van Jacobson paper about net channels. > > I'm surprised you see the benefit of net channels (which first assumption is > about the 50-100 ns cost of a memory cache miss) but keep this obvious cache > line ping pong in loopback driver. Loopback is the wrong thing to optimize. We have several efficient mechanisms for local system communications. If you don't necessarily need socket semantics, use pipes (named or unnamed), else you can use AF_UNIX sockets. Van Jacobson shows a 6X improvement for real over the wire communications, and you're arguing over a sub-percentile improvement over loopback. There is a major difference. Patches exactly like your's have been proposed before by the SGI folks in the past, and I'm arguing against it using with the same positions I held at that time. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
