The IONEDB_ OPCACHE environment variable
can specify the size of the memory cache for the staging-area blobspace
of the client application.
kilobytes
Specifies the value you set for the optical memory cache.
Set the IONEDB_ OPCACHE environment
variable by specifying the size of the memory cache in KB. The specified
size must be equal to or smaller than the size of the system-wide
configuration parameter, OPCACHEMAX.
If
you do not set IONEDB_ OPCACHE, the default cache
size is 128 kilobytes or the size specified in the configuration parameter
OPCACHEMAX. The default for OPCACHEMAX is 0. If you set IONEDB_ OPCACHE to a value of 0, Optical Subsystem does
not use the cache.