On Fri, 7 Dec 2018, Vlastimil Babka wrote:
> >> But *that* in turn makes for other possible questions:
> >>
> >> - if the reason we couldn't get a local hugepage is that we're simply
> >> out of local memory (huge *or* small), then maybe a remote hugepage is
> >> better.
> >>
> >>Note that th
On 12/7/18 8:49 AM, Michal Hocko wrote:
>> But *that* in turn makes for other possible questions:
>>
>> - if the reason we couldn't get a local hugepage is that we're simply
>> out of local memory (huge *or* small), then maybe a remote hugepage is
>> better.
>>
>>Note that this now implies tha
On Thu 06-12-18 20:31:46, Linus Torvalds wrote:
> [ Oops. different thread for me due to edited subject, so I saw this
> after replying to the earlier email by David ]
Sorry about that but I really wanted to make the actual discussion about
semantic clearly distinguished because the thread just gr
On Thu 06-12-18 15:49:04, David Rientjes wrote:
> On Thu, 6 Dec 2018, Michal Hocko wrote:
>
> > MADV_HUGEPAGE changes the picture because the caller expressed a need
> > for THP and is willing to go extra mile to get it. That involves
> > allocation latency and as of now also a potential remote ac
[ Oops. different thread for me due to edited subject, so I saw this
after replying to the earlier email by David ]
On Thu, Dec 6, 2018 at 1:14 AM Michal Hocko wrote:
>
> MADV_HUGEPAGE changes the picture because the caller expressed a need
> for THP and is willing to go extra mile to get it.
Ac
On Thu, 6 Dec 2018, Michal Hocko wrote:
> MADV_HUGEPAGE changes the picture because the caller expressed a need
> for THP and is willing to go extra mile to get it. That involves
> allocation latency and as of now also a potential remote access. We do
> not have complete agreement on the later but
On Wed 05-12-18 16:58:02, Linus Torvalds wrote:
[...]
> I realize that we probably do want to just have explicit policies that
> do not exist right now, but what are (a) sane defaults, and (b) sane
> policies?
I would focus on the current default first (which is defrag=madvise).
This means that we
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