On Mon, Apr 03, 2017 at 11:18:19AM +0200, Michal Hocko wrote:
>On Tue 28-03-17 09:11:37, Wei Yang wrote:
>> Hi, masters,
>>
>> # What I found
>>
>> I found the function calc_memmap_size() may not be that accurate to get the
>> pages for memmap.
>>
>> The reason is:
>>
>> > memmap is allocated o
On Tue 28-03-17 09:11:37, Wei Yang wrote:
> Hi, masters,
>
> # What I found
>
> I found the function calc_memmap_size() may not be that accurate to get the
> pages for memmap.
>
> The reason is:
>
> > memmap is allocated on a node base,
> > while the calculation is on a zone base
>
> This appl
Hi, masters,
# What I found
I found the function calc_memmap_size() may not be that accurate to get the
pages for memmap.
The reason is:
> memmap is allocated on a node base,
> while the calculation is on a zone base
This applies both to SPARSEMEM and FLATMEM.
For example, on my laptop with 6
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