Microsoft Azure has introduced a new service offering virtual machines (VMs) powered by the Cobalt 100 CPU. This custom-designed CPU was unveiled by Microsoft in November 2023. The Cobalt 100 CPU is based on the greenprints of the Arm Neoverse N2, with ongoing development to enhance its capabilities. Previously, this CPU was exclusively used in Microsoft’s own services, but now it is being made available for external use.
The VMs running on the Cobalt CPU come in three sub-models: Dpsv6 (4:1 memory-to-CPU ratio), Dplsv6 (2:1 memory-to-CPU ratio), and Epsv6 (an extra-large memory option with an 8:1 ratio). Users can choose the appropriate model based on the type of workload they have. Microsoft suggests that the D series is suitable for general-purpose tasks with modest memory requirements, such as small databases. On the other hand, the E series is designed for large databases, data analytics workloads, or tasks that require in-memory caching.
Microsoft claims that VMs utilizing the Cobalt CPU deliver up to 1.4 times better CPU performance compared to previous Arm-based VMs on Azure (specific model not disclosed). Additionally, Java workloads see a 1.5x improvement, while web server workloads experience a 2x boost in performance.
Currently, VMs powered by the Cobalt 100 CPU are available in multiple regions, including Southeast Asia. During the initial period, Microsoft is offering these services for free.
Source: Microsoft
TLDR: Microsoft Azure introduces VMs with Cobalt 100 CPUs for enhanced performance and efficiency. Various sub-models cater to different workload needs, with improved CPU performance and free services during the introductory phase.
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