Re: [PATCH 0/4] Swap migration V3: Overview

[Paul Jackson]

Mike wrote:
> Just to be clear, there are at least two distinct requirements for hotplug.
> One only wants to remove a quantity of memory (location unimportant). 

Could you describe this case a little more?  I wasn't aware
of this hotplug requirement, until I saw you comment just now.

The three reasons I knew of for wanting to move memory pages were:
 - offload some physical ram or node (avoid or unplug bad hardware)
 - task migration to another cpuset or moving an existing cpuset
 - various testing and performance motivations to optimize page location

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@xxxxxxx> 1.925.600.0401
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