Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes"

2016-06-16 Thread Michal Hocko
On Thu 16-06-16 15:27:35, Kirill A. Shutemov wrote: > On Thu, Jun 16, 2016 at 02:20:02PM +0200, Michal Hocko wrote: > > On Tue 14-06-16 11:42:29, Kirill A. Shutemov wrote: > > > This reverts commit 5c0a85fad949212b3e059692deecdeed74ae7ec7. > > > > > > The commit causes ~6% regression in unixbench.

Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes"

2016-06-16 Thread Kirill A. Shutemov
On Thu, Jun 16, 2016 at 02:20:02PM +0200, Michal Hocko wrote: > On Tue 14-06-16 11:42:29, Kirill A. Shutemov wrote: > > This reverts commit 5c0a85fad949212b3e059692deecdeed74ae7ec7. > > > > The commit causes ~6% regression in unixbench. > > Is the regression fully explained? My understanding from

Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes"

2016-06-16 Thread Michal Hocko
On Tue 14-06-16 11:42:29, Kirill A. Shutemov wrote: > This reverts commit 5c0a85fad949212b3e059692deecdeed74ae7ec7. > > The commit causes ~6% regression in unixbench. Is the regression fully explained? My understanding from the email thread is that this is suspiciously too high. It is not like I

[PATCH 1/2] Revert "mm: make faultaround produce old ptes"

2016-06-14 Thread Kirill A. Shutemov
This reverts commit 5c0a85fad949212b3e059692deecdeed74ae7ec7. The commit causes ~6% regression in unixbench. Let's revert it for now and consider other solution for reclaim problem later. Signed-off-by: Kirill A. Shutemov Reported-by: "Huang, Ying" --- include/linux/mm.h | 2 +- mm/filemap.c