On 06/11/2014 10:16 AM, Joonsoo Kim wrote:
On Wed, Jun 11, 2014 at 11:12:13AM +0900, Minchan Kim wrote:
On Mon, Jun 09, 2014 at 11:26:17AM +0200, Vlastimil Babka wrote:
Unlike the migration scanner, the free scanner remembers the beginning of the
last scanned pageblock in cc->free_pfn. It might
On 06/11/2014 04:12 AM, Minchan Kim wrote:
>@@ -314,6 +315,9 @@ static unsigned long isolate_freepages_block(struct
compact_control *cc,
>int isolated, i;
>struct page *page = cursor;
>
>+ /* Record how far we have got within the block */
>+ *start_pfn
On Wed, Jun 11, 2014 at 11:12:13AM +0900, Minchan Kim wrote:
> On Mon, Jun 09, 2014 at 11:26:17AM +0200, Vlastimil Babka wrote:
> > Unlike the migration scanner, the free scanner remembers the beginning of
> > the
> > last scanned pageblock in cc->free_pfn. It might be therefore rescanning
> > pa
On 06/09/2014 05:26 PM, Vlastimil Babka wrote:
> Unlike the migration scanner, the free scanner remembers the beginning of the
> last scanned pageblock in cc->free_pfn. It might be therefore rescanning pages
> uselessly when called several times during single compaction. This might have
> been usef
On Mon, Jun 09, 2014 at 11:26:17AM +0200, Vlastimil Babka wrote:
> Unlike the migration scanner, the free scanner remembers the beginning of the
> last scanned pageblock in cc->free_pfn. It might be therefore rescanning pages
> uselessly when called several times during single compaction. This migh
On Mon, 9 Jun 2014, Vlastimil Babka wrote:
> Unlike the migration scanner, the free scanner remembers the beginning of the
> last scanned pageblock in cc->free_pfn. It might be therefore rescanning pages
> uselessly when called several times during single compaction. This might have
> been useful
Unlike the migration scanner, the free scanner remembers the beginning of the
last scanned pageblock in cc->free_pfn. It might be therefore rescanning pages
uselessly when called several times during single compaction. This might have
been useful when pages were returned to the buddy allocator afte
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