Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)

[Bernd Eckenfels]

In article <[e-mail]> you wrote:
> On Tue, Jan 30, 2001 at 02:17:57PM -0800, David S. Miller wrote:

>     8.5MB/sec sounds like half-duplex 100baseT.

> No; I'm 100% its  FD; HD gives 40k/sec TCP because of collisions and
> such like.

>     Positive you are running at full duplex all the way to the
>     netapp, and if so how many switches sit between you and this
>     netapp?

> It's FD all the way (we hardwire everything to 100-FD and never trust
> auto-negotiate); I see no errors or such like anywhere.

> There are ... <pause> ... 3 switches between four switches in
> between, mostly linked via GE. I'm not sure if latency might be an
> issue here, is it was critical I can imagine 10 km of glass might be
> a problem but it's not _that_ far...

>   --cw

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