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Re: two ideas...

From: <touch@ISI.EDU>
Date: Wed, 29 Nov 1995 14:26:39 -0800
Message-Id: <199511292226.AA21980@ash.isi.edu>
To: sneaker+@CMU.EDU, mogul@pa.dec.com
Cc: www-talk@www0.cern.ch, www-speed@tipper.oit.unc.edu, www-html@www0.cern.ch
>     I have two ideas which I would like to get some feedback on.
>     [...] The second is to implement intelligent pre-fetching for the web.
> 
> You might be interested in looking at Venkata Padmanabhan's MS
> thesis from UC Berkeley, available as
> 	http://www.cs.berkeley.edu/~padmanab/papers/masters-tr.ps
> Venkat used a trace-based simulation to investigate the potential
> performance of prefetching.  Some of this work was done under my
> supervision.
> 
> Apparently some people at Boston University have done similar work,
> since their CS technical Reports page
> 	http://cs-www.bu.edu/techreports/Home.html
> lists
>      95-011 
>      Azer Bestavros ; Carlos Cunha.
>      A Prefetching Protocol Using Client Speculation for the WWW,
>      May 8, 1995.
> However, clicking on the link to this report yields: "Error 403
> Forbidden - by rule" and I have not been able to obtain a copy.
> 
> -Jeff

We've also been looking at Web prefetching, using server-side
speculation.

References are listed on our Web pages:

	http://www.isi.edu/lowlat/

Notably
	"Defining 'High Speed Protocols, Five Challenges & and Example
	That Survives the Challenges," J. Touch, IEEE JSAC Special
	Issue on Applications Enabling Gigabit Networks, Vol.  13, No.
	5, June 1995, pp.  828-835.

	"An Experiment in Latency Reduction,", J. Touch and D. Farber
	IEEE Infocom 1994.

We found that server speculation would decrease latency by 2/3, to 0.7
RTT (yes, below the speed of light) by increasing the BW by 7x. Note
that this RTT is an average per page - it still takes 1 RTT for the
first page...

Joe
----------------------------------------------------------------------
Joe Touch                                                touch@isi.edu
ISI / Project Leader, ATOMIC-2               http://www.isi.edu/~touch
USC / Research Assistant Prof.              http://www.isi.edu/atomic2
Received on Wednesday, 29 November 1995 17:29:37 GMT

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