On Fri, Dec 4, 2020 at 6:28 PM Vlastimil Babka wrote:
>
> On 12/4/20 5:03 AM, Muchun Song wrote:
> > On Fri, Dec 4, 2020 at 1:37 AM Vlastimil Babka wrote:
> >>
> >> On 12/2/20 1:18 PM, Muchun Song wrote:
> >> > When we free a page whose order is very close to MAX_ORDER and greater
> >> > than
On 12/4/20 5:03 AM, Muchun Song wrote:
> On Fri, Dec 4, 2020 at 1:37 AM Vlastimil Babka wrote:
>>
>> On 12/2/20 1:18 PM, Muchun Song wrote:
>> > When we free a page whose order is very close to MAX_ORDER and greater
>> > than pageblock_order, it wastes some CPU cycles to increase max_order
>> >
On Fri, Dec 4, 2020 at 1:37 AM Vlastimil Babka wrote:
>
> On 12/2/20 1:18 PM, Muchun Song wrote:
> > When we free a page whose order is very close to MAX_ORDER and greater
> > than pageblock_order, it wastes some CPU cycles to increase max_order
> > to MAX_ORDER one by one and check the pageblock
On 12/2/20 1:18 PM, Muchun Song wrote:
> When we free a page whose order is very close to MAX_ORDER and greater
> than pageblock_order, it wastes some CPU cycles to increase max_order
> to MAX_ORDER one by one and check the pageblock migratetype of that page
But we have to do that. It's not the
When we free a page whose order is very close to MAX_ORDER and greater
than pageblock_order, it wastes some CPU cycles to increase max_order
to MAX_ORDER one by one and check the pageblock migratetype of that page
repeatedly especially when MAX_ORDER is much larger than pageblock_order.
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