Re:Intel Brings a Big Fork to a Server CPU Knife Fight
by phonon on Wednesday June 05, 2024 @07:20AM
(#40583610)
Hyperthreading is turned off on m7a/c7a/r7a.
"One of the major differences between M7a instances and the previous generations of instances, such as M6a instances, is their vCPU to physical processor core mapping. Every vCPU on a M7a instance is a physical CPU core. This means there is no Simultaneous Multi-Threading (SMT). By contrast, every vCPU on prior generations such as M6a instances is a thread of a CPU core."
"One of the major differences between M7a instances and the previous generations of instances, such as M6a instances, is their vCPU to physical processor core mapping. Every vCPU on a M7a instance is a physical CPU core. This means there is no Simultaneous Multi-Threading (SMT). By contrast, every vCPU on prior generations such as M6a instances is a thread of a CPU core."
https://aws.amazon.com/ec2/instance-types/m7a/