CPU Chip Topologies - Amazon's Arm-based Graviton2 Against AMD and Intel: Comparing Cloud Compute
CPU Chip Topologies Having explained that the various cloud instances can vary quite dramatically in their hardware configurations even though on paper they have the same delivered “vCPU” count, it would be interesting to dwell a little bit more into the CPU topologies and resulting aspects such as the core-to-core latencies. Frustrated with some inflexible or inaccurate public tools on the matter, I recently had the time to write a new custom microbenchmark for testing synchronisation latencies of CPU cores, exhibiting some of the cache-coherency as well as physical layouts of current designs.
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