Messages in this thread | | | Date | Sun, 15 Sep 2013 09:11:24 +0800 | Subject | Re: [RFC PATCH] mm: numa: adjust hinting fault record if page is migrated | From | Hillf Danton <> |
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Hello Rik
On Sat, Sep 14, 2013 at 11:55 PM, Rik van Riel <riel@redhat.com> wrote: > On 09/14/2013 07:53 AM, Hillf Danton wrote: >> After page A on source node is migrated to page B on target node, hinting >> fault is recorded on the target node for B. On the source node there is >> another record for A, since a two-stage filter is used when migrating pages. >> >> Page A is no longer used after migration, so we have to erase its record. > > What kind of performance changes have you observed with this patch? > > What benchmarks have you run, and on what kind of systems? > Due to no NUMA box, I can not answer you now. I will try best to borrow one next Monday.
Thanks Hillf
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