Re: [PATCH v3] mm/khugepaged: sched to numa node when collapse huge page

[David Hildenbrand]

On 27.04.22 22:48, Andrew Morton wrote:
> On Thu, 17 Mar 2022 02:50:24 -0400 Bibo Mao <maobibo@xxxxxxxxxxx> wrote:
> 
>> collapse huge page will copy huge page from general small pages,
>> dest node is calculated from most one of source pages, however
>> THP daemon is not scheduled on dest node. The performance may be
>> poor since huge page copying across nodes, also cache is not used
>> for target node. With this patch, khugepaged daemon switches to
>> the same numa node with huge page. It saves copying time and makes
>> use of local cache better.
>>
>> With this patch, specint 2006 base performance is improved with 6%
>> on Loongson 3C5000L platform with 32 cores and 8 numa nodes.
>>
> 
> Are there any acks for this one please?

I'll have a look!


-- 
Thanks,

David / dhildenb