On Wed, Jan 16, 2019 at 04:00:22PM +0100, Vlastimil Babka wrote:
> On 1/16/19 3:33 PM, Mel Gorman wrote:
> >>> + break;
> >>> + }
> >>> +
> >>> + /*
> >>> + * If low PFNs are being found and discarded then
> >>> +
On 1/16/19 3:33 PM, Mel Gorman wrote:
>>> + break;
>>> + }
>>> +
>>> + /*
>>> +* If low PFNs are being found and discarded then
>>> +* limit the scan as fast searching is finding
>>> +
On Wed, Jan 16, 2019 at 02:15:10PM +0100, Vlastimil Babka wrote:
> >
> > + if (free_pfn < high_pfn) {
> > + update_fast_start_pfn(cc, free_pfn);
> > +
> > + /*
> > +* Avoid if skipped recently. Move
On 1/4/19 1:49 PM, Mel Gorman wrote:
> The migration scanner is a linear scan of a zone with a potentiall large
> search space. Furthermore, many pageblocks are unusable such as those
> filled with reserved pages or partially filled with pages that cannot
> migrate. These still get scanned in the
The migration scanner is a linear scan of a zone with a potentiall large
search space. Furthermore, many pageblocks are unusable such as those
filled with reserved pages or partially filled with pages that cannot
migrate. These still get scanned in the common case of allocating a THP
and the cost
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