Memory use on 64-bit platforms
With 64-bit addressing, you can have larger buffer pools to reduce the amount of I/O operations to obtain data from disks.
Because 64-bit platforms allow for larger memory-address space,
the maximum values for the following memory-related configuration
parameters are larger on 64-bit platforms:
- BUFFERPOOL
- CLEANERS
- DS_MAX_QUERIES
- DS_TOTAL_MEMORY
- LOCKS
- SHMADD
- SHMVIRTSIZE
The machine notes for each 64-bit platform lists the maximum values for these configuration parameters and platform-specific parameters such as SHMMAX. For more information about the configuration parameters, see the IBM® Informix® Administrator's Reference and the chapter on shared memory in the IBM Informix Performance Guide.