Re: [RFC PATCH 3/3] mm: always steal split buddies in fallback allocations

2014-12-08 Thread Minchan Kim
On Thu, Dec 04, 2014 at 06:12:58PM +0100, Vlastimil Babka wrote: > When allocation falls back to another migratetype, it will steal a page with > highest available order, and (depending on this order and desired > migratetype), > it might also steal the rest of free pages from the same pageblock.

Re: [RFC PATCH 3/3] mm: always steal split buddies in fallback allocations

2014-12-08 Thread Mel Gorman
On Thu, Dec 04, 2014 at 06:12:58PM +0100, Vlastimil Babka wrote: > When allocation falls back to another migratetype, it will steal a page with > highest available order, and (depending on this order and desired > migratetype), > it might also steal the rest of free pages from the same pageblock.

Re: [RFC PATCH 3/3] mm: always steal split buddies in fallback allocations

2014-12-08 Thread Vlastimil Babka
On 12/08/2014 08:36 AM, Joonsoo Kim wrote: On Thu, Dec 04, 2014 at 06:12:58PM +0100, Vlastimil Babka wrote: When allocation falls back to another migratetype, it will steal a page with highest available order, and (depending on this order and desired migratetype), it might also steal the rest of

Re: [RFC PATCH 3/3] mm: always steal split buddies in fallback allocations

2014-12-07 Thread Joonsoo Kim
On Thu, Dec 04, 2014 at 06:12:58PM +0100, Vlastimil Babka wrote: > When allocation falls back to another migratetype, it will steal a page with > highest available order, and (depending on this order and desired > migratetype), > it might also steal the rest of free pages from the same pageblock.

[RFC PATCH 3/3] mm: always steal split buddies in fallback allocations

2014-12-04 Thread Vlastimil Babka
When allocation falls back to another migratetype, it will steal a page with highest available order, and (depending on this order and desired migratetype), it might also steal the rest of free pages from the same pageblock. Given the preference of highest available order, it is likely that it wil