Quote:
Originally Posted by Atak_Snajpera
Ryzen Threadripper 2990wx uses 4 NUMA nodes and I would like to check if running 4 instances with manually adjusted --numa-pools could improve performance.
Can somebody verify if those are correct switches?
Code:
Instance 1 = --numa-pools "+,-,-,-"
Instance 2 = --numa-pools "-,+,-,-"
Instance 3 = --numa-pools "-,-,+,-"
Instance 4 = --numa-pools "-,-,-,+"
Without any adjustments 5 instances give this
2990wx@3.4GHz(all core turbo) is only 20% faster than 1950@3.4GHz |
well 5 instance just became too low for 1080p source ...
32C/64T for 5 instance for 1080p is more than 6C/12T for each 1080p instance. Unfortunaly, x265 have threading problem at 8 thread (and more) for 1080p source.
If you want really saturate 64 thread CPU, you must use at least 8 instance for 1080p source or at least 2 instance for 2160p source. And perhaps that 8x 1080p instance will saturate RAM with particular CCX connexion (even with quad DDR4 channel).