Messages in this thread | | | Date | Wed, 21 Mar 2018 15:42:49 +0800 | From | Aaron Lu <> | Subject | Re: [RFC PATCH v2 2/4] mm/__free_one_page: skip merge for order-0 page unless compaction failed |
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On Tue, Mar 20, 2018 at 10:59:16PM -0700, Figo.zhang wrote: > 2018-03-20 21:53 GMT-07:00 Aaron Lu <aaron.lu@intel.com>: > > > On Tue, Mar 20, 2018 at 09:21:33PM -0700, Figo.zhang wrote: > > > suppose that in free_one_page() will try to merge to high order anytime , > > > but now in your patch, > > > those merge has postponed when system in low memory status, it is very > > easy > > > let system trigger > > > low memory state and get poor performance. > > > > Merge or not merge, the size of free memory is not affected. > > > > yes, the total free memory is not impact, but will influence the higher > order allocation.
Yes, that's correct.
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