Re: [Xen-users] best practice NUMA config for dom0 ?

[Wei Liu <wei.liu2@xxxxxxxxxx>]

CC Dario who implemented numa placement.

On Tue, May 10, 2016 at 05:40:44PM +0200, Håkon Alstadheim wrote:
> It has been my understanding, without any documentation to back it up,
> that on a Xen server the hypervisor does all then NUMA handling, and
> that linux in dom0 or domU should keep its hands off. Now I notice that
> xl is complaining:
> 
> libxl: notice: libxl_numa.c:499:libxl__get_numa_candidate: NUMA
> placement failed, performance might be affected
> 
> So, given that dom0 is running a fairly recent kernel, and Xen is the
> latest stable (4.6.1), how should I configure the linux kernel for best
> numa handling ? I have two cpu-dies with ram that will benefit from NUMA
> aware allocation.
> 
> 
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