Solaris Tunable Parameters Reference Manual

cachefree (Solaris 2.6 and Solaris 7 Releases)

Description

Enables priority paging feature, provided cachefree is greater than lotsfree. This variable is available for systems running the Solaris 2.6 release, with at a minimum, revision 10 of patch 105181 installed, and for systems running the Solaris 7 release. By default, this feature (cachefree equals lotsfree) is disabled.

Data Type

Unsigned long

Default

Value of lotsfree unless priority_paging is set, which means cachefree is 2 times lotsfree

Range

lotsfree to physical memory on system

Units

Pages

Dynamic?

Yes

Validation

If less than lotsfree, it is reset to the value of lotsfree.

When to Change

Should always be enabled unless the system is tight on memory, and does excessive I/O where the contents of the files are needed in the future.

Commitment Level

Obsolete