Messages in this thread | | | Subject | Re: [PATCH v9 06/12] mm: zero struct pages during initialization | From | Pasha Tatashin <> | Date | Wed, 4 Oct 2017 08:26:57 -0400 |
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On 10/04/2017 04:45 AM, Michal Hocko wrote: > On Tue 03-10-17 11:22:35, Pasha Tatashin wrote: >> >> >> On 10/03/2017 09:08 AM, Michal Hocko wrote: >>> On Wed 20-09-17 16:17:08, Pavel Tatashin wrote: >>>> 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. > > THen this is just misleading. >
OK, I will re-arrange patches the way you suggested earlier.
Pasha
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