Re: Minutes from 5/19 CKRM/PAGG discussion

[Peter Williams]

Hubertus Franke wrote:
> One important input the PAGG team could give is some real
> examples where actually multiple associations to different groups
> is required and help us appreciate that position and let us
> see how this would/could be done in CKRM.

One example would be the implementation of CPU sets (or pools) a la 
Solaris where there are named CPU pools to which processors and 
processes are assigned.   Processors can be moved between CPU pools and 
when this happens it is necessary to visit all the processes that are 
assigned to the pools involved (one losing and one gaining the 
processor) and change their CPU affinity masks to reflect the new 
assignment of processors.  PAGG would be ideal for implementing this.

At the same time, a resource management client could be controlling 
resources allocated to processes based on some other criteria such as 
the real user or the application being run without regard to which CPU 
pool they are running in.

Peter
--
Dr Peter Williams, Chief Scientist                peterw@xxxxxxxxxx
Aurema Pty Limited                                Tel:+61 2 9698 2322
PO Box 305, Strawberry Hills NSW 2012, Australia  Fax:+61 2 9699 9174
79 Myrtle Street, Chippendale NSW 2008, Australia http://www.aurema.com


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