Re: [patch 2/2] cpusets: add interleave_over_allowed option

Christoph Lameter
2007-10-27T01:26:22Z

On Fri, 26 Oct 2007, Paul Jackson wrote:

> Choice B lets the task calculate its mempolicy mask as if it owned
> the entire system, and express whatever elaborate mempolicy placement
> it might need, when blessed with enough memory nodes to matter.
> The system would automatically scrunch that request down to whatever
> is the current size and placement of the cpuset holding that task.
>
> Given a clean slate, I prefer Choice B.

Yes. We should default to Choice B. Add an option MPOL_MF_RELATIVE to
enable that functionality? A new version of numactl can then enable
that by default for newer applications.