Re: [tcpm] TCP tuning

[rick jones <[e-mail]>]

On Feb 3, 2010, at 11:26 AM, Joe Touch wrote:

>
>
> Jerry Chu wrote:
>> On Wed, Feb 3, 2010 at 7:17 AM, SCHARF, Michael
>> <[e-mail]> wrote:
>>>> This topic seems to be gaining momentum, and the WG should
>>>> take some time considering if there is work here for it.
>>> IMHO there could indeed be room for increasing the initial window.  
>>> If
>>> most data transfers continue to be smaller than 3 MSS, a larger  
>>> initial
>>> window would not necessarily cause harm, as it is seldomly used.  
>>> Still,
>>> this would speed up those data transfers that currently suffer from
>>> Slow-Start.
>>
>> 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.
>
> This should be relevant only for the first response from a given IP
> address; persistent connections should render this moot for subsequent
> requests.

Modulo slow-start after idle.  Such as what one might experience  
between viewing the Nth and N+1st search result page.

rick jones