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Date: Tue, 7 Jan 2003 04:08:29 -0300
From: Werner Almesberger <wa@almesberger.net>
To: Valdis.Kletnieks@vt.edu
Cc: linux-kernel@vger.kernel.org
Subject: Re: Linux iSCSI Initiator, OpenSource (fwd) (Re: Gauntlet Set NOW!)
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Valdis.Kletnieks@vt.edu wrote:
> That's not the problem. The problem is that TCP slow-start itself (and some of
> the related congestion control stuff) has some issues scaling to the very high
> end.

I'm very well aware of that ;-) But what you wrote was:

> it takes *hours* without a
> packet drop to get the window open *all* the way

Or did you mean "after" instead of "without" ? Or maybe "into
equilibrium" instead of "the window open ..." ? (After all, the
window isn't only open, but it's been blown off its hinges.)

In any case, your statement accurately describes a somewhat
surprising quirk in Linux TCP performance as of only a bit more
than six years ago :)

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina         wa@almesberger.net /
/_http://www.almesberger.net/____________________________________________/
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