smallfile

Description

Determines the size threshold of files larger than this value are candidates for no cache retention under the freebehind algorithm.

Large memory systems contain enough memory to cache thousands of 10-Mbyte files without making severe memory demands. However, this situation is highly application dependent.

The goal of the smallfile and freebehind parameters is to reuse cached information, without causing memory shortfalls by caching too much.

Data Type

Signed integer

Default

32,768

Range

0 to 2,147,483,647

Dynamic?

Yes

Validation

None

When to Change

Increase smallfile if an application does sequential reads on medium-sized files and can most likely benefit from buffering, and the system is not otherwise under pressure for free memory. Medium-sized files are 32 Kbytes to 2 Gbytes in size.

Commitment Level

Unstable