RE: Linux router performance

Linux Advanced Routing and Traffic Control

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Damjan wrote:
>>> On an AMD Athlon64 3200+ (2 GHz) I was able to saturate 2 PCI-Express
>>> gigabit cards (but that was with 1500 byte packets). Never tried more
>>> although the box has 6 interfaces capable of gigabit, 4 of them attached
>>> via PCI-Express.
>> 
>> But that's _only_ 83333 packets/s isn't it.
>
>Hm. How do you arrive at that result? I get twice the numbers.
>nic a: 1 gbit in -> nic b: 1 gbit out
>nic b: 1 gbit in -> nic a: 1 gbit out
>total 2 gbit
>2 gbit /(1500*8 bit/frame) ~ 160k packets/s
>
>Please note that I did not test with smaller frame sizes, so 1Mp/s
>may be possible (I'll test that if I have some spare time).

I've done some benchmarks on a Sunfire x2100 with 2 port PCI Express
ethernet cards. It switches 800KPPS for 64B packets.

Regards
Mohan

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