Re: [PATCH 0/3] Unmapped page cache control (v5)

[Christoph Lameter]

On Sun, 3 Apr 2011, KOSAKI Motohiro wrote:

> 1) Some bios don't have such knob. btw, OK, yes, *I* can switch NUMA off completely
> because I don't have such bios. 2) bios level turning off makes some side effects,
> example, scheduler load balancing don't care numa anymore.

Well then lets add a kernel parameter that switches all NUMA off.
Otherwise: If you just run a kernel build without NUMA support then you have a similar
effect.

Re #2) If you have the system toss processes around the system then the
load balancing heuristics does not bring you any benefit.


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