Re: [PATCH v4 3/3] Docs/mm/damon/design: Document hugepage_mem_bp target metric

From: Gutierrez Asier

Date: Tue Sep 01 2026 - 01:21:19 EST


On 9/1/2026 3:47 AM, SJ Park wrote:
> On Mon, 31 Aug 2026 13:00:26 -0700 Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
Hi,
>
>>
>>
>> On 8/31/26 8:45 AM, Randy Dunlap wrote:
>>> Hi,
>>>
>>> On 8/31/26 7:47 AM, SJ Park wrote:
>>>> From: Asier Gutierrez <gutierrez.asier@xxxxxxxxxxxxxxxxxxx>
>>>>
>>>> Document hugepage_mem_bp metric exposed by sysfs.
>>>>
>>>> Signed-off-by: Asier Gutierrez <gutierrez.asier@xxxxxxxxxxxxxxxxxxx>
>>>> Reviewed-by: SJ Park <sj@xxxxxxxxxx>
>>>> Signed-off-by: SJ Park <sj@xxxxxxxxxx>
>>>> ---
>>>> Documentation/mm/damon/design.rst | 2 ++
>>>> 1 file changed, 2 insertions(+)
>>>>
>>>> diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst
>>>> index aed6cb1cf4831..a8c163475ef2b 100644
>>>> --- a/Documentation/mm/damon/design.rst
>>>> +++ b/Documentation/mm/damon/design.rst
>>>> @@ -713,6 +713,8 @@ mechanism tries to make ``current_value`` of ``target_metric`` be same to
>>>> bp (1/10,000).
>>>> - ``node_eligible_mem_bp``: Scheme target access pattern-eligible memory ratio
>>>> of a node in bp (1/10,000).
>>>> +- ``hugepage_mem_bp``: Total huge page to total used memory ratio in bp
>>>> + (1/10,000).
>>>>
>>>> ``nid`` is optionally required for ``node_mem_used_bp``, ``node_mem_free_bp``,
>>>> ``node_memcg_used_bp``, ``node_memcg_free_bp`` and ``node_eligible_mem_bp`` to
>>>
>>> I've looked thru the entire design.rst file and cannot find anything telling
>>> me (or anyone) what "bp" means. Explain??
>>
>> OK, I found it on the internet. I still think that it would be a
>> good idea to say "basis point" one time (the first time that it is used).
>
> You are right, and I agree. I will add that clarification before the next
> merge window.
>
>>
>>
>> --
>> ~Randy
>
>
> Thanks,
> SJ

SJ, should I submit a new patch to fix design.rst?

--
Asier Gutierrez
Huawei