Ben Greear wrote:
Herbert Poetzl wrote:
On Mon, Jun 26, 2006 at 03:13:17PM -0700, Ben Greear wrote:
yes, that sounds good to me, any numbers how that
affects networking in general (performance wise and
memory wise, i.e. caches and hashes) ...
I'll run some tests later today. Based on my previous tests,
I don't remember any significant overhead.
Here's a quick benchmark using my redirect devices (RDD). Each
RDD comes in a pair...when you tx on one, the pkt is rx'd on the peer.
The idea is that it is exactly like two physical ethernet interfaces
connected by a cross-over cable.
My test system is a 64-bit dual-core Intel system, 3.013 Ghz processor with 1GB RAM.
Fairly standard stuff..it's one of the Shuttle XPC systems.
Kernel is 2.6.16.16 (64-bit).
Test setup is: rdd1 -- rdd2 [bridge] rdd3 -- rdd4
I am using my proprietary module for the bridge logic...and the default
bridge should be at least this fast. I am injecting 1514 byte packets
on rdd1 and rdd4 with pktgen (bi-directional flow). My pktgen is also
receiving the pkts and gathering stats.
This setup sustains 1.7Gbps of generated and received traffic between
rdd1 and rdd4.
Running only the [bridge] between two 10/100/1000 ports on an Intel PCI-E
NIC will sustain about 870Mbps (bi-directional) on this system, so the
virtual devices are quite efficient, as suspected.
I have not yet had time to benchmark the mac-vlans...hopefully later today.
Thanks,
Ben
--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com
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