First of all, congratulations for bringing such a nice development to the open
source community.
In order to evaluate the performance of xmlblaster in replacement of an
off-the-shelf product, I modified the HelloWorld.c demo into a simple C client
generating publishOneway as fast as it can .
The client only takes 1.2% of the CPU time on an old HP-UX machine (PA8500 2.0
300 Mhz).
Here is an extract of the client:
for (i=0; i< 10000; i++)
{
xb->publishOneway(xb, &msgUnitArr, &exception);
if (*exception.errorCode != '\0')
{
printf("[HelloWorld] Caught exception in publish errorCode=%s,
message=%s\n",
exception.errorCode, exception.message);
freeXmlBlasterConnectionUnparsed(xb);
exit(1);
}
}
The server rel 1.0.2 runs on a Pentium 4 at 1.2 GHz with JRE 1.4.2_03.
There is no subscription pending.
By using sockets, I was expecting better results than with CORBA
(http://www.xmlblaster.org/performance.html) and obtained a throughput of 400
messages / seconds.
The limit is not the network as the server takes 99% of the CPU time.
When using the standard publish method, the throughput is 310 messages/s.
a) Am I doing something wrong ?
b) Should we expect improvement of throughput in future releases ?
c) Any plan for writing a high performance version of the server in C++ ?
Thanks,
Yves Claereboudt
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