Messages in this thread | | | Subject | Re: [PATCH v9 06/12] mm: zero struct pages during initialization | From | Pasha Tatashin <> | Date | Tue, 3 Oct 2017 11:22:35 -0400 |
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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.
Pasha
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