Something I didn’t see mentioned was that this unequal memory access time also affects pcie I/O. If your thread on CPU A needs to get data in or out of a nic on CPU B, your throughput/latency will be impacted.
We have to explain this to customers of our software all the time, it’s something that’s easy to miss.
We have to explain this to customers of our software all the time, it’s something that’s easy to miss.