Performance

By default, the Server Engine installation installs a database accelerator called Xtreme I/O (XIO) if the system meets the minimum requirements for XIO. See System Requirements in Advanced Operations Guide.

XIO increases database performance by accelerating disk access time for Pervasive PSQL data files. XIO and the database engine work together transparently-no intervention is required by a user or an application. The larger the data set size compared to the size of the Windows system cache, the more performance improvement XIO provides.

For a custom installation, you can omit XIO if you choose.

XIO provides two utilities for working with the driver: xiomgr and xiostats. Note that, on Windows Vista, you must have administrative privileges to run xiostats.

See Xtreme I/O Driver in Advanced Operations Guide.