Re: [PATCH v2 2/4] mm/compaction: stop the isolation when we isolate enough freepage

At 2015/1/31 16:31, Vlastimil Babka wrote: > On 01/31/2015 08:49 AM, Zhang Yanfei wrote: >> Hello, >> >> At 2015/1/30 20:34, Joonsoo Kim wrote: >> >> Reviewed-by: Zhang Yanfei >> >> IMHO, the patch making the free scanner move slower makes both scanners >> meet further. Before this patch, if we is

Re: [PATCH v2 2/4] mm/compaction: stop the isolation when we isolate enough freepage

On 01/31/2015 08:49 AM, Zhang Yanfei wrote: > Hello, > > At 2015/1/30 20:34, Joonsoo Kim wrote: > > Reviewed-by: Zhang Yanfei > > IMHO, the patch making the free scanner move slower makes both scanners > meet further. Before this patch, if we isolate too many free pages and even > after we rele

Re: [PATCH v2 2/4] mm/compaction: stop the isolation when we isolate enough freepage

Hello, At 2015/1/30 20:34, Joonsoo Kim wrote: > From: Joonsoo > > Currently, freepage isolation in one pageblock doesn't consider how many > freepages we isolate. When I traced flow of compaction, compaction > sometimes isolates more than 256 freepages to migrate just 32 pages. > > In this patc

Re: [PATCH v2 2/4] mm/compaction: stop the isolation when we isolate enough freepage

On 01/30/2015 01:34 PM, Joonsoo Kim wrote: > From: Joonsoo > > Currently, freepage isolation in one pageblock doesn't consider how many > freepages we isolate. When I traced flow of compaction, compaction > sometimes isolates more than 256 freepages to migrate just 32 pages. > > In this patch, f

[PATCH v2 2/4] mm/compaction: stop the isolation when we isolate enough freepage

From: Joonsoo Currently, freepage isolation in one pageblock doesn't consider how many freepages we isolate. When I traced flow of compaction, compaction sometimes isolates more than 256 freepages to migrate just 32 pages. In this patch, freepage isolation is stopped at the point that we have mo