Re: [PATCH 0/5] make slab gfp fair

Christoph Lameter
2007-05-17T17:30:39Z

On Thu, 17 May 2007, Peter Zijlstra wrote:

> > 2. It seems to be based on global ordering of allocations which is
> > not possible given large systems and the relativistic constraints
> > of physics. Ordering of events get more expensive the bigger the
> > system is.
> >
> > How does this system work if you can just order events within
> > a processor? Or within a node? Within a zone?
>
> /me fails again..
>
> Its about ensuring ALLOC_NO_WATERMARKS memory only reaches PF_MEMALLOC
> processes, not joe random's pi calculator.

Watermarks are per zone?