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 8.362381922sHmm, 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
