When many clients connect to a c-treeACE Server at the same time using Shared Memory on AIX, overhead in the system calls caused the connections to be establish more slowly than when using TCP/IP.
The logic has been changed to use a Unix domain (file system) socket for transferring data between the client and server when using shared memory on AIX. The Unix domain socket exists as a file named /tmp/ctreedbs/<servername>.logon.