[omniORB] Network performance

[Ridgway, Richard (London)]

Taking a punt, SOAP was an order of magnitude slower while co-located?
Why would you not expect the latency increase when going over the LAN?
Simple test below:

%ping localhost
PING ......... 56(84) bytes of data.
64 bytes from ......... icmp_seq=0 ttl=58 time=0.027 ms

%ping neighbouring-machine
PING .......... 56(84) bytes of data.
64 bytes from ............. icmp_seq=0 ttl=58 time=0.535 ms



-----Original Message-----
From: omniorb-list-bounces at omniorb-support.com
[mailto:omniorb-list-bounces at omniorb-support.com] On Behalf Of Default
User
Sent: 09 November 2007 00:24
To: omniorb-list at omniorb-support.com
Subject: [omniORB] Network performance


I've been doing some test on Linux. I'd gathered some latency numbers
for a client/server message passing system, with both co-located on the
same box (localhost endpoint).

I then switched to having the client and server running on different
Linux boxes in our lab, connected via a simple high-speed LAN. The
performance went way down. Average latency for sending a message
increased by an order of magnitude. 

This was certainly unexpected. A SOAP implementation that I was tested
showed almost no change in latency in similar circumstances. Is there
something I've set up incorrectly?



Brian


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