From: Wesley Eddy <weddy@grc.nasa.gov>
To: Horst von Brand <vonbrand@inf.utfsm.cl>
Cc: netdev@oss.sgi.com, linux-kernel@vger.kernel.org
Subject: Re: TCP rto estimation patch
Date: Fri, 23 Apr 2004 16:44:34 -0400 [thread overview]
Message-ID: <20040423204434.GA7492@grc.nasa.gov> (raw)
In-Reply-To: <200404231735.i3NHZRp3012111@eeyore.valparaiso.cl>
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On Fri, Apr 23, 2004 at 01:35:27PM -0400, Horst von Brand wrote:
>
> Why RTT_ALPHA and RTTVAR_BETA, and not just RTT_BETA? Or even RTO_xxx?
>
Per the spec, alpha is used to compute rtt and beta likewise for rttvar.
> Is there any reason to change them, ever? What happens if you change them?
> Restrictions on values? All this should go with such a patch IMHO (at least
> pointers to relevant discussion).
The information isn't relevant since the patch didn't change them, and if
you were interested in changing the values then simple google search
would return a plethora of research on RTT estimation.
> Must go over it with a fine comb to make sure no unrelated 2 or 3 got
> replaced... out of my league, sorry.
There are stray constants all over the place, which is something that
even freshman computer science students are taught to avoid. This patch
represents a minor improvement to that situation.
-Wes
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next prev parent reply other threads:[~2004-04-23 20:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-23 14:24 TCP rto estimation patch Wesley Eddy
2004-04-23 17:35 ` Horst von Brand
2004-04-23 20:44 ` Wesley Eddy [this message]
2004-04-23 21:06 ` David Stevens
2004-04-23 21:09 ` David S. Miller
2004-04-23 23:19 ` Wesley Eddy
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