Subject: Re: on the wire behaviour of TSO on/off is supposed to be the same yes?

From: Rick Jones <[email-masked]>
Date: Thu, 27 Jan 2005 17:36:18 -0800

David S. Miller wrote:
> On Thu, 27 Jan 2005 16:10:46 -0800
> Rick Jones <[email-masked]> wrote:
> 
> 
> 
>>The other relates to the business of disabling TSO on a connection upon packet loss.
> 
> 
> There cannot possibly any compliance issues resulting from turning
> off an optimization in the face of packet loss.

I was a bit vague - compliance with the benchmark run and report rules, not with 
RFC's.

>>Internet connected systems experience non-trivial packet loss rates and so if TSO 
>>disabled upon packet loss it means a given benchmark result using TSO deviates 
>>even more from reality than one without TSO.
> 
> 
> And running the benchmark over a local gigabit subnet doesn't deviate
> from what Internet connected systems can expect to achieve how-so?

Benchmarking, not logic...

> Oh you mean I really can get 60,000 web or database connections a second
> when the users are over modems half-way across the planet?  Give me a
> break...

If there are enough users :)

> Anyways, see my other posting, we'll be able to keep TSO enabled in
> the face of packet loss, but that is an optimization not a correctness
> fix.

Cool.

rick jones