On Fri, Aug 02, 2013 at 02:22:08AM -0400, Johannes Weiner wrote:
> On Thu, Aug 01, 2013 at 11:56:36AM +0900, Minchan Kim wrote:
> > Hi Hannes,
> >
> > On Fri, Jul 19, 2013 at 04:55:25PM -0400, Johannes Weiner wrote:
> > > Each zone that holds userspace pages of one workload must be aged at a
> > >
On Thu, Aug 01, 2013 at 11:56:36AM +0900, Minchan Kim wrote:
> Hi Hannes,
>
> On Fri, Jul 19, 2013 at 04:55:25PM -0400, Johannes Weiner wrote:
> > Each zone that holds userspace pages of one workload must be aged at a
> > speed proportional to the zone size. Otherwise, the time an
> > individual
On Thu, Aug 01, 2013 at 03:58:23PM -0400, Johannes Weiner wrote:
> But we might be able to get away with a small error.
The idea is that there's a small error anyway, because multiple CPUs
can reset it at the same time, while another CPU is decreasing it, so
the decrease sometime may get lost rega
On Thu, Aug 01, 2013 at 05:51:11PM +0200, Andrea Arcangeli wrote:
> On Thu, Aug 01, 2013 at 12:31:34AM -0400, Rik van Riel wrote:
> > On 07/31/2013 10:56 PM, Minchan Kim wrote:
> >
> > > Yes, it's not really slow path because it could return to normal status
> > > without calling significant slow
On Thu, Aug 01, 2013 at 12:31:34AM -0400, Rik van Riel wrote:
> On 07/31/2013 10:56 PM, Minchan Kim wrote:
>
> > Yes, it's not really slow path because it could return to normal status
> > without calling significant slow functions by reset batchcount of
> > prepare_slowpath.
> >
> > I think it's
On 07/31/2013 10:56 PM, Minchan Kim wrote:
Yes, it's not really slow path because it could return to normal status
without calling significant slow functions by reset batchcount of
prepare_slowpath.
I think it's tradeoff and I am biased your approach although we would
lose a little performance
Hi Hannes,
On Fri, Jul 19, 2013 at 04:55:25PM -0400, Johannes Weiner wrote:
> Each zone that holds userspace pages of one workload must be aged at a
> speed proportional to the zone size. Otherwise, the time an
> individual page gets to stay in memory depends on the zone it happened
> to be alloc
On Mon, Jul 29, 2013 at 07:48:21PM +0200, Andrea Arcangeli wrote:
> Hi Johannes,
>
> On Fri, Jul 19, 2013 at 04:55:25PM -0400, Johannes Weiner wrote:
> > diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> > index af1d956b..d938b67 100644
> > --- a/mm/page_alloc.c
> > +++ b/mm/page_alloc.c
> > @@ -18
Hi Johannes,
On Fri, Jul 19, 2013 at 04:55:25PM -0400, Johannes Weiner wrote:
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index af1d956b..d938b67 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -1879,6 +1879,14 @@ zonelist_scan:
> if (alloc_flags & ALLOC_NO_WATERMA
On Thu, 2013-07-25 at 11:10 -0400, Johannes Weiner wrote:
> [ I Cc'd Paul Bolle at pebo...@tiscali.nl as well, his English was
> better from there ]
Namespace collission! That's not me!
Could my double perhaps use another name, like say, Paul Bollee? Or
something even less confusing?
Thanks!
Hi Paul Bolle^W^W Sam Ben^W^W Hush Bensen^W^W Mtrr Patt^W^W Ric
Mason^W^W Will Huck^W^W Simon Jeons^W^W Jaeguk Hanse^W^W Ni zhan
Chen^W^W^W Wanpeng Li
[ I Cc'd Paul Bolle at pebo...@tiscali.nl as well, his English was
better from there ]
On Thu, Jul 25, 2013 at 02:50:54PM +0800, Paul Bolle wrot
On 07/23/2013 04:21 AM, Rik van Riel wrote:
On 07/19/2013 04:55 PM, Johannes Weiner wrote:
@@ -1984,7 +1992,8 @@ this_zone_full:
goto zonelist_scan;
}
-if (page)
+if (page) {
+atomic_sub(1U << order, &zone->alloc_batch);
/*
* page->pfmemallo
On 07/22/2013 05:04 PM, Johannes Weiner wrote:
On Mon, Jul 22, 2013 at 04:21:07PM -0400, Rik van Riel wrote:
On 07/19/2013 04:55 PM, Johannes Weiner wrote:
@@ -1984,7 +1992,8 @@ this_zone_full:
goto zonelist_scan;
}
- if (page)
+ if (page) {
+
On Mon, Jul 22, 2013 at 04:21:07PM -0400, Rik van Riel wrote:
> On 07/19/2013 04:55 PM, Johannes Weiner wrote:
>
> >@@ -1984,7 +1992,8 @@ this_zone_full:
> > goto zonelist_scan;
> > }
> >
> >-if (page)
> >+if (page) {
> >+atomic_sub(1U << order, &zone->alloc_bat
On 07/19/2013 04:55 PM, Johannes Weiner wrote:
@@ -1984,7 +1992,8 @@ this_zone_full:
goto zonelist_scan;
}
- if (page)
+ if (page) {
+ atomic_sub(1U << order, &zone->alloc_batch);
/*
* page->pfmemalloc is set whe
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