On Tue 20-11-18 15:51:32, Oscar Salvador wrote:
> On Tue, 2018-11-20 at 14:43 +0100, Michal Hocko wrote:
> > From: Michal Hocko
> >
> > do_migrate_range has been limiting the number of pages to migrate to
> > 256
> > for some reason which is not documented.
>
> When looking back at old memory-h
On Tue, 2018-11-20 at 14:43 +0100, Michal Hocko wrote:
> From: Michal Hocko
>
> do_migrate_range has been limiting the number of pages to migrate to
> 256
> for some reason which is not documented.
When looking back at old memory-hotplug commits one feels pretty sad
about the brevity of the cha
On 18-11-20 14:43:21, Michal Hocko wrote:
> From: Michal Hocko
>
> do_migrate_range has been limiting the number of pages to migrate to 256
> for some reason which is not documented. Even if the limit made some
> sense back then when it was introduced it doesn't really serve a good
> purpose thes
On 20.11.18 15:25, Michal Hocko wrote:
> On Tue 20-11-18 15:18:41, David Hildenbrand wrote:
> [...]
>> (we could also check for pending signals inside that function if really
>> required)
>
> do_migrate_pages is not the proper layer to check signals. Because the
> loop only isolates pages and that
On Tue 20-11-18 15:18:41, David Hildenbrand wrote:
[...]
> (we could also check for pending signals inside that function if really
> required)
do_migrate_pages is not the proper layer to check signals. Because the
loop only isolates pages and that is not expensive. The most expensive
part is deepe
On 20.11.18 14:43, Michal Hocko wrote:
> From: Michal Hocko
>
> do_migrate_range has been limiting the number of pages to migrate to 256
> for some reason which is not documented. Even if the limit made some
> sense back then when it was introduced it doesn't really serve a good
> purpose these d
From: Michal Hocko
do_migrate_range has been limiting the number of pages to migrate to 256
for some reason which is not documented. Even if the limit made some
sense back then when it was introduced it doesn't really serve a good
purpose these days. If the range contains huge pages then
we break
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