[PATCH v9 00/12] complete deferred page initialization · Pavel Tatashin <hidden> · 2017-09-20
[PATCH v9 04/12] sparc64: simplify vmemmap_populate · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 04/12] sparc64: simplify vmemmap_populate · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 04/12] sparc64: simplify vmemmap_populate · Pasha Tatashin <hidden> · 2017-10-03
[PATCH v9 01/12] x86/mm: setting fields in deferred pages · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 01/12] x86/mm: setting fields in deferred pages · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 01/12] x86/mm: setting fields in deferred pages · Pasha Tatashin <hidden> · 2017-10-03
[PATCH v9 05/12] mm: defining memblock_virt_alloc_try_nid_raw · Pavel Tatashin <hidden> · 2017-09-20
[PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap · Michal Hocko <mhocko@kernel.org> · 2017-10-04
[PATCH v9 11/12] arm64/kasan: use kasan_map_populate() · Pavel Tatashin <hidden> · 2017-09-20
[PATCH v9 06/12] mm: zero struct pages during initialization · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 06/12] mm: zero struct pages during initialization · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 06/12] mm: zero struct pages during initialization · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 06/12] mm: zero struct pages during initialization · Michal Hocko <mhocko@kernel.org> · 2017-10-04
Re: [PATCH v9 06/12] mm: zero struct pages during initialization · Pasha Tatashin <hidden> · 2017-10-04
[PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Michal Hocko <mhocko@kernel.org> · 2017-10-04
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Pasha Tatashin <hidden> · 2017-10-04
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Michal Hocko <mhocko@kernel.org> · 2017-10-04
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Pasha Tatashin <hidden> · 2017-10-04
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Michal Hocko <mhocko@kernel.org> · 2017-10-04
Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages · Pasha Tatashin <hidden> · 2017-10-04
[PATCH v9 03/12] mm: deferred_init_memmap improvements · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 03/12] mm: deferred_init_memmap improvements · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 03/12] mm: deferred_init_memmap improvements · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 03/12] mm: deferred_init_memmap improvements · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 03/12] mm: deferred_init_memmap improvements · Michal Hocko <mhocko@kernel.org> · 2017-10-04
[PATCH v9 10/12] x86/kasan: use kasan_map_populate() · Pavel Tatashin <hidden> · 2017-09-20
[PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Mark Rutland <mark.rutland@arm.com> · 2017-10-03
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pasha Tatashin <hidden> · 2017-10-03
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Will Deacon <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Michal Hocko <mhocko@kernel.org> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Will Deacon <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Will Deacon <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Will Deacon <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Will Deacon <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-10-09
Re: [PATCH v9 09/12] mm/kasan: kasan specific map populate function · Pavel Tatashin <hidden> · 2017-10-09
[PATCH v9 07/12] sparc64: optimized struct page zeroing · Pavel Tatashin <hidden> · 2017-09-20
[PATCH v9 02/12] sparc64/mm: setting fields in deferred pages · Pavel Tatashin <hidden> · 2017-09-20
Re: [PATCH v9 02/12] sparc64/mm: setting fields in deferred pages · Michal Hocko <mhocko@kernel.org> · 2017-10-03
Re: [PATCH v9 02/12] sparc64/mm: setting fields in deferred pages · Pasha Tatashin <hidden> · 2017-10-03

Re: [PATCH v9 06/12] mm: zero struct pages during initialization

From: Pasha Tatashin <hidden>
Date: 2017-10-03 15:23:54
Also in: linux-arm-kernel, linux-mm, lkml, sparclinux


On 10/03/2017 09:08 AM, Michal Hocko wrote:

On Wed 20-09-17 16:17:08, Pavel Tatashin wrote:

quoted

Add struct page zeroing as a part of initialization of other fields in
__init_single_page().

This single thread performance collected on: Intel(R) Xeon(R) CPU E7-8895
v3 @ 2.60GHz with 1T of memory (268400646 pages in 8 nodes):

                         BASE            FIX
sparse_init     11.244671836s   0.007199623s
zone_sizes_init  4.879775891s   8.355182299s
                   --------------------------
Total           16.124447727s   8.362381922s

Hmm, this is confusing. This assumes that sparse_init doesn't zero pages
anymore, right? So these number depend on the last patch in the series?

Correct, without the last patch sparse_init time won't change.

Pasha

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