[9363] in www-talk@info.cern.ch
Re: two ideas...
daemon@ATHENA.MIT.EDU (Simon Spero)
Wed Nov 29 23:10:04 1995
Date: Wed, 29 Nov 1995 19:05:26 -0800 (PST)
From: Simon Spero <ses@tipper.oit.unc.edu>
To: touch@ISI.EDU
Cc: marc@ckm.ucsf.edu, www-talk@www0.cern.ch, www-speed@tipper.oit.unc.edu
In-Reply-To: <199511292334.AA22209@ash.isi.edu>
Resent-From: www-talk@w3.org
On Wed, 29 Nov 1995 touch@ISI.EDU wrote:
> I would predict that they would scale to around BW = 7^3, or around
> 350x, and latency would reduce from 2.1 RTT's down to 0.2 RTTs avg
> per request.
>
I grabbed a copy of the Touch and Farber paper cited earlier in this
thread, which seemed to deal with FTP. This described a pre-send selection
algorithm of sending everything in the currently selected directory. The
Boston University system used a simple 1-level probablistic model to pick
the best candidates for pre-send, and used fare less extra bandwidth,
though with a higher probablity of a cache-miss. There's lots of stuff to
tune with speculation.
Simon
