Date: Mon, 2 Dec 1996 22:41:39 -0700 (MST) From: Nate Williams <nate@mt.sri.com> To: "David S. Miller" <davem@jenolan.rutgers.edu> Cc: hackers@freebsd.org Subject: Re: TCP/IP bandwidth bragging Message-ID: <199612030541.WAA02716@rocky.mt.sri.com> In-Reply-To: <199612030437.XAA18483@jenolan.caipgeneral> References: <199612030323.NAA08269@genesis.atrad.adelaide.edu.au> <199612030437.XAA18483@jenolan.caipgeneral>
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[ Removed the obnoxious Cc:, since everyone removed is already on -hackers anyway. BTW David, the reason they're names are on the Cc list is because they have followed up to the original posting to our mailing list, and since group replies are the 'normal' way of doing email lists they are included in followups. It's not a way of 'ganging' up on you, just the way mailing lists work around here. ] > If I sit down with an embedded > processor system and any sort of network-alive RTOS, I can make > your numbers look sick. How'd you like a negative TCP latency? > It's not hard to do; nor is 100% medium occupancy. > > Are you offering full Unix (or POSIX, or some othe full featured > system) semantics on that system? One of the things I am proud of is > that I can pretty much fill a nice pipe, and retain all of the > semantics of a full system. Take a peek at QNX. You want a full system, or simply a sub-set of it? You want real-time control *AND* the ability to run user-land applications? How about DOS/Windows applications? You want to run the hardware as fast as it will go? It can do it, so yes I can give you at least one 'embedded' system that has most of what Linux has in terms of user-land support (and tons more for kernel support) and still blows the doors of *all* general-purpose x86 boxes. However, it doesn't have 'swapping/paging', which makes it kind of obnoxious for things such as WWW servers and the like. But, when you're trying to guarantee response times and such, paging in from disk is something you generally don't like to do. :( Nate
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