[Lse-tech] Re: fix zonelist ordering for NUMA

[<j-n...@ce...>]

Hi,

> > The sorting can be extended to, for example, more fine grained round-robin
> > like Erich suggested. But let's start from the simple one.
> > 
> > Any comments?
> 
> Yeah, it looks ok.

Thank you.

> What I was hoping to do in the patch that ultimately
> gets in:
> 
>   1) make it arch independent
>      this means having arch code populate a SLIT-like table for use by
>      the generic zonelist building code

I would like to hear the comments from people on other arch.
If the same ordering rule can be applicable for others, it's nice.

>   2) handle the cases that Erich talked about a bit better
>   3) some systems have pgdats w/o any CPUs associated with them, they
>      need to be dealt with differently than regular nodes, maybe as
>      extensions to an existing node
> 
> The final routine might look something like (many thanks to pj for
> hitting me with a cluebat about this):

It looks cleaner than mine. I'll try it.

Best regards.
--
NOMURA, Jun'ichi <j-n...@ce...>