On Sun, Apr 12, 2015 at 11:48:23PM +0900, Minchan Kim wrote:
> Hello Hugh,
>
> On Sat, Apr 11, 2015 at 02:40:46PM -0700, Hugh Dickins wrote:
> > On Wed, 11 Mar 2015, Minchan Kim wrote:
> >
> > > Bascially, MADV_FREE relys on the pte dirty to decide whether
> > > it allows VM to discard the page.
Hello Hugh,
On Sat, Apr 11, 2015 at 02:40:46PM -0700, Hugh Dickins wrote:
> On Wed, 11 Mar 2015, Minchan Kim wrote:
>
> > Bascially, MADV_FREE relys on the pte dirty to decide whether
> > it allows VM to discard the page. However, if there is swap-in,
> > pte pointed out the page has no pte_dirty
On Wed, 11 Mar 2015, Minchan Kim wrote:
> Bascially, MADV_FREE relys on the pte dirty to decide whether
> it allows VM to discard the page. However, if there is swap-in,
> pte pointed out the page has no pte_dirty. So, MADV_FREE checks
> PageDirty and PageSwapCache for those pages to not discard i
On Thu, 9 Apr 2015 08:50:25 +0900 Minchan Kim wrote:
> Bump.
I'm getting the feeling that MADV_FREE is out of control.
Below is the overall rollup of
mm-support-madvisemadv_free.patch
mm-support-madvisemadv_free-fix.patch
mm-support-madvisemadv_free-fix-2.patch
mm-dont-split-thp-page-when-sysc
Bump.
On Wed, Mar 11, 2015 at 10:20:38AM +0900, Minchan Kim wrote:
> Bascially, MADV_FREE relys on the pte dirty to decide whether
> it allows VM to discard the page. However, if there is swap-in,
> pte pointed out the page has no pte_dirty. So, MADV_FREE checks
> PageDirty and PageSwapCache for t
On Tue, Mar 31, 2015 at 12:14:46AM +0300, Cyrill Gorcunov wrote:
> On Mon, Mar 30, 2015 at 05:59:15PM +0900, Minchan Kim wrote:
> > Hi Cyrill,
> >
> > On Mon, Mar 30, 2015 at 11:51:12AM +0300, Cyrill Gorcunov wrote:
> > > On Mon, Mar 30, 2015 at 02:22:50PM +0900, Minchan Kim wrote:
> > > > 2nd des
On Mon, Mar 30, 2015 at 05:59:15PM +0900, Minchan Kim wrote:
> Hi Cyrill,
>
> On Mon, Mar 30, 2015 at 11:51:12AM +0300, Cyrill Gorcunov wrote:
> > On Mon, Mar 30, 2015 at 02:22:50PM +0900, Minchan Kim wrote:
> > > 2nd description trial.
> > ...
> > Hi Minchan, could you please point for which repo
Hi Cyrill,
On Mon, Mar 30, 2015 at 11:51:12AM +0300, Cyrill Gorcunov wrote:
> On Mon, Mar 30, 2015 at 02:22:50PM +0900, Minchan Kim wrote:
> > 2nd description trial.
> ...
> Hi Minchan, could you please point for which repo this patch,
> linux-next?
It was based on v4.0-rc5-mmotm-2015-03-24-17-02
On Mon, Mar 30, 2015 at 02:22:50PM +0900, Minchan Kim wrote:
> 2nd description trial.
...
Hi Minchan, could you please point for which repo this patch,
linux-next?
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2nd description trial.
>From ccfc6c79634f6cec69d8fb23b0e863ebfa5b893c Mon Sep 17 00:00:00 2001
From: Minchan Kim
Date: Mon, 30 Mar 2015 13:43:08 +0900
Subject: [PATCH v2] mm: make every pte dirty on do_swap_page
Bascially, MADV_FREE relys on the dirty bit in page table entry
to decide whether VM
Bascially, MADV_FREE relys on the pte dirty to decide whether
it allows VM to discard the page. However, if there is swap-in,
pte pointed out the page has no pte_dirty. So, MADV_FREE checks
PageDirty and PageSwapCache for those pages to not discard it
because swapped-in page could live on swap cach
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