[mpls-linux-general] mpls-linux performance

[George X. <xil...@ii...>]

Dear all, 

I have made some preliminary tests with mpls on kernel 2.6.35.13 which is the last kernel released for mpls-linux for Kernel 2.6 version. I have noticed the following: 

1. The performance depends on the ethernet card driver and chipset, currently best performance achieved with Broadcom cards
2. The Non-Loss forwarding capability of an LSR router is around 90Mbps for full length UDP packets. The experiments were made with Gigabit cards. 
3. Kernel messages were so often (i had mpls debug disabled) that I had to stop the rsyslogd in order not to spend CPU cycles. 
4. I increased UDP system memory by modifying the kernel defaults under /proc/sys, no change in the actual performance was observed. 

So here comes the question, does anyone have any performance numbers or rules of thumb to propose ? What is the best forwarding performance that  I could expect? 

Best Regards 
George Xilouris  
--



George K. Xilouris
Associate Researcher		
NCSR Demokritos 
Institute of Informatics and Telecommunications 
P.O. Box 60228 
15310, Agia Paraskevi, Greece 

phone: + (30) 210 650 31 08 
fax: + (30) 210 653 21 75 

Web: http://dtlab.iit.demokritos.gr/~xilouris 	
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