On 11/14/2014 08:05 AM, Joonsoo Kim wrote:
>> What about this scenario, with pageblock order:
>>
>> - record cc->migrate_pfn pointing to pageblock X
>> - isolate_migratepages() skips the pageblock due to e.g. skip bit,
>> or the pageblock being a THP already...
>> - loop to pageblock X+1, last_mig
On Thu, Nov 13, 2014 at 01:47:08PM +0100, Vlastimil Babka wrote:
> On 11/04/2014 01:37 AM, Joonsoo Kim wrote:
> >On Mon, Nov 03, 2014 at 09:12:33AM +0100, Vlastimil Babka wrote:
> >>On 10/27/2014 08:41 AM, Joonsoo Kim wrote:
> >>>On Tue, Oct 07, 2014 at 05:33:39PM +0200, Vlastimil Babka wrote:
> >>
On 11/04/2014 01:37 AM, Joonsoo Kim wrote:
On Mon, Nov 03, 2014 at 09:12:33AM +0100, Vlastimil Babka wrote:
On 10/27/2014 08:41 AM, Joonsoo Kim wrote:
On Tue, Oct 07, 2014 at 05:33:39PM +0200, Vlastimil Babka wrote:
And, I wonder why last_migrated_pfn is set after isolate_migratepages().
Not
On Mon, Nov 03, 2014 at 09:12:33AM +0100, Vlastimil Babka wrote:
> On 10/27/2014 08:41 AM, Joonsoo Kim wrote:
> >On Tue, Oct 07, 2014 at 05:33:39PM +0200, Vlastimil Babka wrote:
> >>The goal of memory compaction is to create high-order freepages through page
> >>migration. Page migration however pu
On 10/27/2014 08:41 AM, Joonsoo Kim wrote:
On Tue, Oct 07, 2014 at 05:33:39PM +0200, Vlastimil Babka wrote:
The goal of memory compaction is to create high-order freepages through page
migration. Page migration however puts pages on the per-cpu lru_add cache,
which is later flushed to per-cpu pc
On Tue, Oct 07, 2014 at 05:33:39PM +0200, Vlastimil Babka wrote:
> The goal of memory compaction is to create high-order freepages through page
> migration. Page migration however puts pages on the per-cpu lru_add cache,
> which is later flushed to per-cpu pcplists, and only after pcplists are
> dr
On 10/07/2014 11:33 AM, Vlastimil Babka wrote:
The goal of memory compaction is to create high-order freepages through page
migration. Page migration however puts pages on the per-cpu lru_add cache,
which is later flushed to per-cpu pcplists, and only after pcplists are
drained the pages can actu
The goal of memory compaction is to create high-order freepages through page
migration. Page migration however puts pages on the per-cpu lru_add cache,
which is later flushed to per-cpu pcplists, and only after pcplists are
drained the pages can actually merge. This can happen due to the per-cpu
ca
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