I will be retiring from the University of Texas at Austin at the end of March, 2025. Unfortunately that means that this blog site will be shut down, so I am currently working on porting to a new location. The good news is that I will not stop posting on… read more
Single-core memory bandwidth: Latency, Bandwidth, and Concurrency
The Multicore Era Over the past ~15 years, server processors from Intel and AMD have evolved from the early quad-core processors to the current monsters with over 50 cores per socket. The memory subsystems have grown at similar rates, from 3-4 DRAM channels at 1.333 GT/s transfer rates to 8-12… read more
The evolution of single-core bandwidth in multicore systems — update
In April 2023 I posted some results and comments The evolution of single-core bandwidth in multicore processors illustrating the (slow) growth in single-core memory bandwidth over time in Intel and AMD multicore processors. Here is an update to the summary chart, adding the AMD EPYC 4 (“Genoa”) processors. Genoa delivers… read more