Hello Andy,

The answer there is simple: stupidity!

The word is too hard, just say forgetting  :-)

Thanks again
Laurent

-----Message d'origine-----
De : Andy Fleming [mailto:afleming@freescale.com]
Envoye : jeu. 23 fevrier 2006 21:08
A : Laurent Lagrange
Cc : linuxppc-embedded@ozlabs.org; vbordug@ru.mvista.com;
pantelis.antoniou@gmail.com
Objet : Re: Gianfar is slower than fcc_enet on MPC8541 ???



On Feb 23, 2006, at 11:28, Laurent Lagrange wrote:

quoted

Hi everybody,

I tried the below Andy's idea. It works fine.
It is my TCP clients which now slow the traffic.

But I don't know why the default timeouts are so high.
If the traffic is high, the timeout does not fire.
If the traffic is low, the timeout seems too long (???).

The answer there is simple: stupidity!  :)  I just didn't carefully  
test the values for performance when I chose them.  I probably also  
did the math wrong, because I was more concerned about seeing if it  
worked at all.  It's also possible it got set that way to see a  
measurable difference to prove it was working, and then got left as  
the default.  Rest assured, there was not a deliberate reason.  We  
submitted a patch once this performance issue was discovered.