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[lwip-devel] Some lwIP performances...

From: Frédéric BERNON
Subject: [lwip-devel] Some lwIP performances...
Date: Thu, 3 May 2007 16:50:31 +0200

I will commit this evenning the last https://savannah.nongnu.org/bugs/?19162 
fix (I will send the last patch file before).

During my tests, I have try to evaluate which max bandwidth I can get in 
output, with UDP on socket layer. The test send full UDP datagrams (1458 bytes) 
on a 100Mbps/Full Duplex Ethernet interface.

With the patch I will propose, I can get ~90Mbps (~57Mbps with current CVS 
release). Even, with some tips, I can even got... 98.2 Mbps!!! To get this last 
8.2Mbps, I have replace the pbuf_alloc(PBUF_TRANSPORT, 0, PBUF_REF) by a local 
variable, and remove the pbuf_free. I will propose a next patch for that...

Do you have some performance measures on your targets ?
Frédéric BERNON 
Chef de projet informatique 
Microsoft Certified Professional 
Tél. : +33 (0)4-67-87-61-10 
Fax. : +33 (0)4-67-70-85-44 
Email : address@hidden 
Web Site : http://www.hymatom.fr 
P Avant d'imprimer, penser à l'environnement

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