Re: [-mm PATCH 8/9] Memory controller add switch to control whattype of pages to limit (v4)

From: Balbir Singh
Date: Mon Aug 13 2007 - 02:18:51 EST


YAMAMOTO Takashi wrote:
>> YAMAMOTO Takashi wrote:
>>>> Choose if we want cached pages to be accounted or not. By default both
>>>> are accounted for. A new set of tunables are added.
>>>>
>>>> echo -n 1 > mem_control_type
>>>>
>>>> switches the accounting to account for only mapped pages
>>>>
>>>> echo -n 2 > mem_control_type
>>>>
>>>> switches the behaviour back
>>> MEM_CONTAINER_TYPE_ALL is 3, not 2.
>>>
>> Thanks, I'll fix the comment on the top.
>>
>>> YAMAMOTO Takashi
>>>
>>>> +enum {
>>>> + MEM_CONTAINER_TYPE_UNSPEC = 0,
>>>> + MEM_CONTAINER_TYPE_MAPPED,
>>>> + MEM_CONTAINER_TYPE_CACHED,
>
> what's MEM_CONTAINER_TYPE_CACHED, btw?
> it seems that nothing distinguishes it from MEM_CONTAINER_TYPE_MAPPED.
>

The important types are currently MEM_CONTAINER_TYPE_MAPPED and MEM_CONTAINER_TYPE_ALL.
I added the types for future use (may be for finer accounting of types, later).

> YAMAMOTO Takashi


--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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