Re: [PATCH 25/25] mm, compaction: Do not direct compact remote memory

2019-01-18 Thread Mel Gorman
On Fri, Jan 18, 2019 at 02:51:00PM +0100, Vlastimil Babka wrote: > On 1/4/19 1:50 PM, Mel Gorman wrote: > > Remote compaction is expensive and possibly counter-productive. Locality > > is expected to often have better performance characteristics than remote > > high-order pages. For small

Re: [PATCH 25/25] mm, compaction: Do not direct compact remote memory

2019-01-18 Thread Vlastimil Babka
On 1/4/19 1:50 PM, Mel Gorman wrote: > Remote compaction is expensive and possibly counter-productive. Locality > is expected to often have better performance characteristics than remote > high-order pages. For small allocations, it's expected that locality is > generally required or fallbacks are

[PATCH 25/25] mm, compaction: Do not direct compact remote memory

2019-01-04 Thread Mel Gorman
Remote compaction is expensive and possibly counter-productive. Locality is expected to often have better performance characteristics than remote high-order pages. For small allocations, it's expected that locality is generally required or fallbacks are possible. For larger allocations such as