NAME

mtune − file format

SYNOPSIS

mtune

DESCRIPTION

The mtune file contains information about all the system tunable parameters.  Each tunable parameter is specified by a single line in the file, and each line contains the following whitespace-separated set of fields:

1.  parameter name: A character string no more than 20 characters long.  It is used to construct the preprocessor "#define’s" that pass the value to the system when it is built. 

2.  default value: This is the default value of the tunable parameter.  If the value is not specified in the stune file, this value will be used when the system is built. 

3.  minimum value: This is the minimum allowable value for the tunable parameter.  If the parameter is set in the stune file, the configuration tools will verify that the new value is equal to or greater than this value. 

4.  maximum value: This is the maximum allowable value for the tunable parameter.  If the parameter is set in the stune file, the configuration tools will check that the new value is equal to or less than this value. 

The file mtune normally resides in /etc/conf/cf.d. However, a user or an add-on package should never directly edit the mtune file to change the setting of a system tunable parameter.  Instead the idtune command should be used to modify or append the tunable parameter to the stune file. 

In order for the new values to become effective, the UNIX system kernel must be rebuilt and the system must then be rebooted. 

SEE ALSO

stune(4). 

idbuild(1M), idtune(1M) in the INTER­ACTIVE UNIX System User’s/System Administrator’s Reference Manual. 

\*U  —  Version 1.0