The CoreMark benchmark can be limited to run on a single vCPU, or execute workloads on multiple vCPUs in parallel. For example, CoreMark tests against various real-world workloads, like list sort and search. We arrived at CoreMark because it is open source, cloud-agnostic, and more representative of general CPU performance than stress-ng. Designed for CPU benchmarking, CoreMark produces a single-number score - the higher the score, the better the performance. We evaluated each cloud’s CPU performance using the CoreMark version 1.0 benchmark. Benchmarking AWS, Azure and GCP with CoreMark Combined with the fact that AMD (and ARM) CPUs use less power, it’s not surprising that major cloud vendors invest significant resources into their AMD offerings. This is especially valuable as applications become more feature-rich, which creates added demand. While single-core performance is important for some types of applications, complex applications - particularly cloud-based ones - benefit from multicore CPUs. This is bad news for Intel, as the industry gravitates toward the idea that more is better. Instead, the AWS custom-built Graviton2 Processor, which uses a 64-bit ARM architecture, came in just ahead of GCP and Azure’s winning machines - both of which ran AMD processors. When we looked at the 16-core CoreMark benchmark performance, none of the winning machines ran Intel processors. Intel swept the board in single-core processing, but when more processing units were added, it faltered.įor the single-core CoreMark runs, all the winning machines ran Intel processors. When we tested dozens of machines across the three clouds, it soon became apparent that what’s inside each machine matters. The CPU benchmark looked at how each cloud provider (AWS, Azure, or Google) performs on single-core and 16-core CPU benchmarks. Intel Excels in Single-Core but Does Not Scale The report is based on benchmarks that reflect real-world applications and workloads, and is designed to help application builders understand where each cloud performs best and which best suits their use case. The 2021 Cloud Report is our third annual report looking at the performance of the top three cloud providers: Amazon Web Services (AWS), Google Cloud Platform (GCP) and Microsoft Azure (Azure). While the report focuses on cloud providers, we also found some interesting takeaways among the three major CPU processors: Intel, AMD and Amazon’s Arm-based Graviton2. We measured performance in terms of CPU, Network, Storage I/O, and an application-level OLTP benchmark. Based on 12 open source benchmarks, the 2021 Cloud Report, produced by Cockroach Labs, evaluated how the machines of cloud providers perform in ways that matter most to CockroachDB workloads. He has an MBA from MIT and a Bachelor's in Computer Science from the University of Michigan.Įffective benchmarks provide valuable, reproducible insights into performance for various types of systems. John cut his teeth as a software engineer at and Microsoft, before moving into product management. John is a Product Manager at Cockroach Labs, where he is creating solutions for modern cloud applications and enterprises.
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