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Git Commits -> Revision ce927e1
Revision ce927e1 by Sergey Sharybin (master) November 28, 2018, 13:41 (GMT) |
Tweaks for threading schedule for Threadripper2 and EPYC The idea is to make main thread and job threads to be scheduled on CPU dies which has direct access to memory (those are NUMA nodes 0 and 2). We also do this for new EPYC CPUs since their NUMA nodes 1 and 3 do have access but only to a higher range DDR slots. By preferring nodes 0 and 2 on EPYC we make it so users with partially filled DDR slots has fast memory access. One thing which is not really solved yet is localization of memory allocation: we do not guarantee that memory is allocated on the closest to the NUMA node DDR slot and hope that memory manager of OS is acting in favor of us. |
Commit Details:
Full Hash: ce927e15e0e3570a02834b6001519a024ca1e2b6
Parent Commit: b3e2c69
Lines Changed: +111, -0