Set the Buffer Cache Sizes

Sybase IQ initially sets the size of the main and temporary buffer caches to 16MB and 12MB respectively. Change the default size of the main and temporary buffer caches to accommodate your applications.

Buffer Cache Size Settings

Use these options to set buffer cache sizes.

Settings that change buffer cache sizes

Method

When to use it

How long the setting is effective

-iqmc and -iqtc server switches

Recommended method. Sets cache sizes when the database and server are not running. Allows cache sizes >4GB.

Especially useful for 64-bit platforms, or if cache size database options are set larger than your system can accommodate.

From the time the server is started until it is stopped

Restart the server to change buffer cache sizes. The -iqmc and -iqtc server start-up options only remain in effect while the server is running, so you need to include them every time you restart the server.