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Re: [RFC] 2.3.39 zone balancing

On Thu, 13 Jan 2000, Alan Cox wrote:

> > I think that busier machines probably have a larger need
> > for DMA memory than this code fragment will give us. I
> > have the gut feeling that we'll want to keep about 512kB
> > or more free in the lower 16MB of busy machines...
> 
> 2.2.x uses a simple algorithm. Normally allocations come from the
> main pool if it fails we use the DMA pool. That seems to work just
> fine.

Of course, I should have thought of that.

Our `high-to-low' allocation strategy should make
sure that the free pages `propagate down'...

Now we'll only want to build something into kswapd
so that rebalancing the high memory zones is done in
the background.

regards,

Rik
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