Re: [tcpm] TCP tuning

["SCHARF, Michael" <[e-mail]>]

Jerry,

> Actually our data points to the contrary - the average web 
> object and page size have been rising steadily. E.g., the 
> majority of our search responses no longer fit in 3 MSS these days.

OK. I looked at some traffic traces from the year 2008, which might not
be representative any more.

> > In the past, I have played a little bit with an initial 
> window e. g. 
> > of 10 MSS, and that worked surprisingly well.
> 
> Good to know!
> 
> >Also, one could combine a
> > larger initial window with other mechanisms that would reduce the  
> >aggressiveness of the flow startup. Maybe it is indeed time 
> to think  
> >about the Slow-Start once again.
> 
> We are planning to submit an I-D on raising initcwnd to 10MSS before
> 3/1 to be included in the upcoming IETF meeting.

Please note that I used the value of 10 MSS just as an example. I'd
actually expect that doubling the allowed initial window would be
sufficient in order to solve most real-world Slow-Start performance
issues.

Michael