Messages in this thread | | | Subject | Re: [PATCH v9 12/12] mm: stop zeroing memory during allocation in vmemmap | From | Pasha Tatashin <> | Date | Tue, 3 Oct 2017 11:34:25 -0400 |
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On 10/03/2017 09:19 AM, Michal Hocko wrote: > On Wed 20-09-17 16:17:14, Pavel Tatashin wrote: >> vmemmap_alloc_block() will no longer zero the block, so zero memory >> at its call sites for everything except struct pages. Struct page memory >> is zero'd by struct page initialization. >> >> Replace allocators in sprase-vmemmap to use the non-zeroing version. So, >> we will get the performance improvement by zeroing the memory in parallel >> when struct pages are zeroed. > > Is it possible to merge this patch with http://lkml.kernel.org/r/20170920201714.19817-7-pasha.tatashin@oracle.com
Yes, I will do that. It would also require re-arranging [PATCH v9 07/12] sparc64: optimized struct page zeroing optimization to come after this patch.
Pasha
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