Administering Resource Management in Oracle^® Solaris 11.3

How to Change the Multi-CPU Binding Type

To change the binding type to strong bind, you can use the projmod command to change the value of project.mcb.flags to strong.

Note that you could also delete the project.mcb.flag key, because the value is set to strong by default.

1. Become root or assume an equivalent role.
2. Change the value of project.mcb.flags to strong.

   # projmod -s -K project.mcb.flags=strong new-project
   

   You could also delete the project.mcb.flag key, because the default value is strong.

3. View the project.

   # projects -l new-project
   new-project
           projid : 100
           comment: ""
           users  : (none)
           groups : (none)
           attribs: project.mcb.cpus=0,3-5,9-11
                    project.mcb.flags=strong
       
     

   ---

   Note -  By default, the projmod command only modifies the project configuration file. To apply the changes to the processes in the project, use the –A option.

   # projmod -A new-project
   projmod: Updating project new-project succeeded with following warning message.
   WARNING: We bind the target project to the default pool of the zone because an MCB entry exists.

   The update was successful. However, at least one of the CPUs described in the project.mcb.cpus entry must exist in the system and be online. If a subset of the CPUs do not exist or are not online, these are not bound to, and warnings are printed.

   If you try to apply the attributes of the project to processes, an error message is displayed. For example, this message displays if none of the specified CPUs 17-20 exist.

   ERROR: All of given multi-CPU binding (MCB) ids are not found in the 
   system: project.mcb.cpus=17-20

   ---