Artur Hefczyc

I am generally happy with the Mac OS X installed on my Macbook. It is quite a good system and in most cases it works as expected.

Sometimes however it drives my crazy. I don't think this is a system created for software developers. At least not for software developers who work on the networking software.

I tried to do final tests over my Tigase Jabber/XMPP Server server and just couldn't do what I needed. One of the tests, called performance test, require sending 1000 messages over concurrent 1000 network connections between the Testsuite and the Tigase server.  Whatever I did, I couldn't successfully open more than 900 concurrent connections. I tried to play with numerous setting, like maximum opened files, file descriptors, tweaking TCP/IP settings, nothing helped.

On Linux I can easily manage to open 60k connections and all works fine without failure. I wonder whether this is kind of a hidden configuration parameter or maybe it is a desktop version of the Mac OS X feature and to open more connections I have to have server version...

Any suggestion or help with forcing Mac OS X to handle more network connections would be very much appreciated. Otherwise I will probably replace the nice system with the system which works...