In some cases, increasing the shared memory segment can lead to better network performance.
When the client and Sybase IQ are on the same system, shared memory is the default communication mechanism, not TCP/IP.
When you specify the server command-line option -iqwmem, shared memory is used to provide wired memory.
If the -iqwmem option is used, you need to increase the maximum shared memory segment size parameter in the /etc/system configuration file. Sybase recommends that you specify a configuration for the largest amount of wired memory you expect your system to support.
set shmsys:shminfo_shmmax=0xffffffffNever set shmmax to a value greater than 7/8 of physical memory.
Local connections through shared memory are not supported for Sun Solaris x64 systems. Use standard network connectivity by adding the parameters -host <hostname> and -port <portnumber> to the client connection string.
See the Sybase IQ System Administration Guide for more information on using the -host and -port parameters.