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Date: Mon, 12 Feb 2001 16:17:53 -0800
From: Tim Wright <timw@splhi.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "H. Peter Anvin" <hpa@transmeta.com>,
        Werner Almesberger <Werner.Almesberger@epfl.ch>,
        linux-kernel@vger.kernel.org
Subject: Re: LILO and serial speeds over 9600
Message-ID: <20010212161753.B4280@kochanski.internal.splhi.com>
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In-Reply-To: <E14ST3g-000094-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Tue, Feb 13, 2001 at 12:11:01AM +0000
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Yup,
those who fail to learn from TCP are doomed to re-invent it, badly, at the
wrong level <GRIN>.
Seriously, the console subsystem on the Sequent (now IBM) NUMA-Q systems
originally used UDP. It wound up as a serious mess. We changed to TCP.
I'll admit that the NUMA-Q console subsystem does more than what is being
proposed here currently, but it's likely to grow.
In general UDP is only appropriate if you *can* afford to drop data.
Did RDP ever get anywhere ?

Regards,

Tim

On Tue, Feb 13, 2001 at 12:11:01AM +0000, Alan Cox wrote:
> > I'm sure you can.  That doesn't mean it's the right solution.
> 
> And the UDP proposal will be at least as big if it does retransmits, and if
> it doesnt , its junk. It will also need as much buffering, if not the same
> packing trick
> 
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-- 
Tim Wright - timw@splhi.com or timw@aracnet.com or twright@us.ibm.com
IBM Linux Technology Center, Beaverton, Oregon
Interested in Linux scalability ? Look at http://lse.sourceforge.net/
"Nobody ever said I was charming, they said "Rimmer, you're a git!"" RD VI
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