Re: [PATCH] memory: arrange to conserve on DMA reservation

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, Jun 16, 2025 at 05:20:45PM +0200, Jan Beulich wrote:
> On 16.06.2025 16:46, Roger Pau Monné wrote:
> > One question I have though, on systems with a low amount of memory
> > (let's say 8GB), does this lead to an increase in domain construction
> > time due to having to fallback to order 0 allocations when running out
> > of non-DMA memory?
> 
> It'll likely be slower, yes, but I can't guesstimate by how much.

Should there be some way to control this behavior then?  I'm mostly
thinking about client systems like Qubes where memory is likely
limited, and the extra slowness to create VMs could become
noticeable?

Thanks, Roger.