ORe + L4Linux network performance

Björn Döbel doebel at os.inf.tu-dresden.de
Tue Apr 28 13:06:42 CEST 2009


Hi,

> Could anyone please tell me?
> 1. Did someone measure a L4Linux network performance when ORe is in use? Are
> there any report or paper with results?

No reports, sorry. We did run singe L4Linux instances with ORe on some
100 MBit ethernet cards (that was about 4 years ago) and got very low
drops (<5% if at all) in throughput.

> 2. What about 1 Gbit/s cards (e.g. Intel e1000)? Were they tested?

We tested ORe on e1000 as well as a TG3 NIC built into one of our test
machines. Cannot give you performance numbers for that, though.

> 3. How badly is influence of other running L4Linux processes on network
> performance?

I don't assume there will be any difference to the influence normal
Linux processes have on the network performance. You will get
performance hits if you run several instances of the L4Linux kernel and
ORe needs to multiplex the physical NIC amongst them, but this is
probably expected.

Cheers,
Bjoern
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