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Groups > linux.kernel > #1424003
| From | "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes" |
| Date | 2016-06-16 14:30 +0200 |
| Message-ID | <rKEAN-8ja-19@gated-at.bofh.it> (permalink) |
| References | <rJScO-2p8-17@gated-at.bofh.it> <rJScO-2p8-23@gated-at.bofh.it> <rKEAN-8ja-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 the email > thread is that this is suspiciously too high. It is not like I would > be against the revert but having an explanation would be really > appreciated. My understanding is that it's overhead on setting accessed bit: http://lkml.kernel.org/r/20160613125248.GA30109@black.fi.intel.com -- Kirill A. Shutemov
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[PATCH 0/2] Reverts to address unixbench regression "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-06-14 10:50 +0200
[PATCH 1/2] Revert "mm: make faultaround produce old ptes" "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-06-14 10:50 +0200
Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes" Michal Hocko <mhocko@kernel.org> - 2016-06-16 14:30 +0200
Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes" "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-06-16 14:30 +0200
Re: [PATCH 1/2] Revert "mm: make faultaround produce old ptes" Michal Hocko <mhocko@kernel.org> - 2016-06-16 17:20 +0200
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