Hi Marek,
On Wed, Nov 21, 2012 at 04:50:45PM +0100, Marek Szyprowski wrote:
> Hello,
>
> On 11/21/2012 2:05 AM, Minchan Kim wrote:
> >On Tue, Nov 20, 2012 at 03:49:35PM +0100, Marek Szyprowski wrote:
> >> Hello,
> >>
> >> On 11/20/2012 1:01 AM, Minchan Kim wrote:
> >> >Hi Marek,
> >> >
> >> >On M
Hello,
On 11/21/2012 2:05 AM, Minchan Kim wrote:
On Tue, Nov 20, 2012 at 03:49:35PM +0100, Marek Szyprowski wrote:
> Hello,
>
> On 11/20/2012 1:01 AM, Minchan Kim wrote:
> >Hi Marek,
> >
> >On Mon, Nov 12, 2012 at 09:59:42AM +0100, Marek Szyprowski wrote:
> >> It has been observed that system te
On Wed, Nov 21, 2012 at 02:07:04PM +0100, Michal Nazarewicz wrote:
> On Wed, Nov 21 2012, Minchan Kim wrote:
> > So your concern is that too many free pages in MIGRATE_CMA when OOM happens
> > is odd? It's natural with considering CMA design which kernel never fallback
> > non-movable page allocati
On Wed, Nov 21 2012, Minchan Kim wrote:
> So your concern is that too many free pages in MIGRATE_CMA when OOM happens
> is odd? It's natural with considering CMA design which kernel never fallback
> non-movable page allocation to CMA area. I guess it's not a your concern.
>
> Let's think below extr
On Tue, Nov 20, 2012 at 03:49:35PM +0100, Marek Szyprowski wrote:
> Hello,
>
> On 11/20/2012 1:01 AM, Minchan Kim wrote:
> >Hi Marek,
> >
> >On Mon, Nov 12, 2012 at 09:59:42AM +0100, Marek Szyprowski wrote:
> >> It has been observed that system tends to keep a lot of CMA free pages
> >> even in ve
On Tue, Nov 20 2012, Marek Szyprowski wrote:
> Right now running out of 'plain' movable pages is the only possibility to
> get movable pages allocated from CMA. On the other hand running out of
> 'plain' movable pages is very deadly for the system, as movable pageblocks
> are also the main fallback
Hello,
On 11/20/2012 1:01 AM, Minchan Kim wrote:
Hi Marek,
On Mon, Nov 12, 2012 at 09:59:42AM +0100, Marek Szyprowski wrote:
> It has been observed that system tends to keep a lot of CMA free pages
> even in very high memory pressure use cases. The CMA fallback for movable
CMA free pages are j
Hi Marek,
On Mon, Nov 12, 2012 at 09:59:42AM +0100, Marek Szyprowski wrote:
> It has been observed that system tends to keep a lot of CMA free pages
> even in very high memory pressure use cases. The CMA fallback for movable
CMA free pages are just fallback for movable pages so if user requires m
On Mon, 19 Nov 2012 16:38:18 +0100
Marek Szyprowski wrote:
> Hello,
>
> On 11/14/2012 11:58 PM, Andrew Morton wrote:
> > On Mon, 12 Nov 2012 09:59:42 +0100
> > Marek Szyprowski wrote:
> >
> > > It has been observed that system tends to keep a lot of CMA free pages
> > > even in very high memory
Hello,
On 11/14/2012 11:58 PM, Andrew Morton wrote:
On Mon, 12 Nov 2012 09:59:42 +0100
Marek Szyprowski wrote:
> It has been observed that system tends to keep a lot of CMA free pages
> even in very high memory pressure use cases. The CMA fallback for movable
> pages is used very rarely, only
On Mon, 12 Nov 2012 09:59:42 +0100
Marek Szyprowski wrote:
> It has been observed that system tends to keep a lot of CMA free pages
> even in very high memory pressure use cases. The CMA fallback for movable
> pages is used very rarely, only when system is completely pruned from
> MOVABLE pages,
It has been observed that system tends to keep a lot of CMA free pages
even in very high memory pressure use cases. The CMA fallback for movable
pages is used very rarely, only when system is completely pruned from
MOVABLE pages, what usually means that the out-of-memory even will be
triggered very
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