On 11/29/06, Gerrit Renker <[EMAIL PROTECTED]> wrote:
Quoting Ian McDonald:
|  I think I didn't explain my point well here. You can't change to u32
|  but need to be unsigned int (not u64).
Don't get this: u32 is a 32-bit unsigned value and therefore looks sufficient - 
and you
are proposing `unsigned int' to have easier conversion to skb->len, right?

OK. On 64 bit platform unsigned int = 64 bits and we are passing a 64
bit argument (skb->len) into a 32 bit parameter. We either need to
explicitly typecast or change wherever you have put u32 to unsigned
int.

Arnaldo probably knows which way is better from his experience.


No that is not what I meant. Of course this needs to be done with regard to 
proper conversion - in
particular, X_recv. I am at the moment trying to write this up (time consuming 
task), but the gist
of it is - we could eliminate some problems, such as (i) having to multiply by 
1E12 when computing
X_calc, (ii) get better results when performing direct division. As said, will 
send further information.

OK. Will have a look at it when it arrives.

Would really appreciate if you could at some time have a look at the 
moving-average patch. Have communicated
with Eddie again about it, and using MSS would at the moment be much more 
complicated.

Will look at it tomorrow (along with performance testing existing
changes in tree) as meant to be preparing coursework and working on
PhD today.... Agree MSS is problematic at present without PMTU. My
thoughts were to have moving average and explicit s setting as two
options available to user. If they don't set s then use moving
average. I agree with Eddie that users should be able to define s if
they want to.

Ian
--
Ian McDonald
Web: http://wand.net.nz/~iam4
Blog: http://imcdnzl.blogspot.com
WAND Network Research Group
Department of Computer Science
University of Waikato
New Zealand
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