On 7/18/07, Dave Hansen <[EMAIL PROTECTED]> wrote:

 Support for the Collaborative Memory Management Assist (CMMA) in PTF for z/VM 
5.2 APAR VM63856.

That's the other one, sometimes called CMM-2. It's a cool research project.
It requires hardware support as well as Linux kernel changes to allow
Linux memory management share information with VM memory management.
Without the hardware support it might be pretty expensive, depending
on the workload. The idea is that this should do automatic tuning with
no need for knobs to turn.
Last I heard was that "it is possible to construct artificial
workloads in a lab environment that demonstrate it to be very
effective"  But to understand what this means for real business
workload requires proper performance measurements. I have not seen any
measurements published.

Rob

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