Solaris Tunable Parameters Reference Manual

cachefree (Solaris 8 Releases)


The Solaris 8 release changes the way file system pages are cached. These changes subsume the priority paging capability.

Note –

Remove both cachefree and priority_paging settings in the /etc/system file.

The caching changes remove most of the pressure on the virtual memory system resulting from file system activity. Several statistics exhibit new behavior:

  • Page reclaims are higher because pages are now explicitly added to the free list after I/O completes.

  • Free memory is now higher because the free memory count now includes a large component of the file cache.

  • Scan rates are drastically reduced.

Commitment Level


Change History

See cachefree (Solaris 2.6 and Solaris 7 Releases) for more information.