# Nitro System

AWS hardware and software infrastructure for Amazon EC2 that uses dedicated hardware and a lightweight hypervisor.

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## AWS Launches Graviton5-Based EC2 R9g and R9gd Memory-Optimized Instances

DevFeed: [AWS Launches Graviton5-Based EC2 R9g and R9gd Memory-Optimized Instances](<https://devfeed.tech/articles/aws-launches-graviton5-based-ec2-r9g-and-r9gd-memory-optimized-instances-12359.md>)

Original publisher: [Read original article](<https://www.storagereview.com/news/aws-launches-graviton5-based-ec2-r9g-and-r9gd-memory-optimized-instances>)

Author: Harold Fritts

Published: 2026-09-01T18:42:59Z

Content type: news

Language: en

Sources: [StorageReview.com](<https://devfeed.tech/sources/storagereview-com.md>)

Topics: [Amazon Web Services](<https://devfeed.tech/topics/aws.md>), [Amazon EC2](<https://devfeed.tech/topics/amazon-ec2.md>), [Arm](<https://devfeed.tech/topics/arm.md>), [cpu](<https://devfeed.tech/topics/cpu.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>), [Nitro System](<https://devfeed.tech/topics/nitro-system.md>), [virtualization](<https://devfeed.tech/topics/virtualization.md>), [Nitro Isolation Engine](<https://devfeed.tech/topics/nitro-isolation-engine.md>), [Database](<https://devfeed.tech/topics/database.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Formal verification](<https://devfeed.tech/topics/formal-verification.md>)

Tags: [amazon-ec2](<https://devfeed.tech/tags/amazon-ec2.md>), [amazon-eks](<https://devfeed.tech/tags/amazon-eks.md>), [arm](<https://devfeed.tech/tags/arm.md>), [aws](<https://devfeed.tech/tags/aws.md>), [c-plus-plus](<https://devfeed.tech/tags/c-plus-plus.md>), [caching](<https://devfeed.tech/tags/caching.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [database](<https://devfeed.tech/tags/database.md>), [docker](<https://devfeed.tech/tags/docker.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [formal-verification](<https://devfeed.tech/tags/formal-verification.md>), [go](<https://devfeed.tech/tags/go.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [java](<https://devfeed.tech/tags/java.md>), [microservices](<https://devfeed.tech/tags/microservices.md>), [nitro-isolation-engine](<https://devfeed.tech/tags/nitro-isolation-engine.md>), [nitro-system](<https://devfeed.tech/tags/nitro-system.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [nvme](<https://devfeed.tech/tags/nvme.md>), [processors](<https://devfeed.tech/tags/processors.md>), [python](<https://devfeed.tech/tags/python.md>), [time](<https://devfeed.tech/tags/time.md>)

### AI overview

AWS has generally released the Amazon EC2 R9g and R9gd instances, powered by AWS Graviton5 processors. These Arm-based, memory-optimized instances offer higher per-vCPU performance, faster memory, larger cache capacity, and increased networking and Amazon EBS bandwidth for database, caching, analytics, container, and microservices workloads. R9gd adds local NVMe SSD storage for low-latency local capacity. Both families use the AWS Nitro System and Nitro Isolation Engine, with AWS citing formal verification for the isolation properties.

### Source excerpt

AWS has made its Amazon EC2 R9g and R9gd instances generally available, introducing memory-optimized systems powered by AWS Graviton5 processors. The new Arm-based instances target database, caching, analytics, container, and microservices workloads that require high memory bandwidth and improved per-vCPU performance. Compared with Graviton4-based R8g instances, AWS states that R9g can deliver up to 25% The post AWS Launches Graviton5-Based EC2 R9g and R9gd Memory-Optimized Instances appeared first on StorageReview.com.

## The hyperscale blueprint: Why cloud giants prioritize VMs for Kubernetes over bare metal

DevFeed: [The hyperscale blueprint: Why cloud giants prioritize VMs for Kubernetes over bare metal](<https://devfeed.tech/articles/the-hyperscale-blueprint-why-cloud-giants-prioritize-vms-for-kubernetes-over-bare-metal-12238.md>)

Original publisher: [Read original article](<https://platformengineering.org/blog/the-hyperscale-blueprint-why-cloud-giants-prioritize-vms-for-kubernetes-over-bare-metal>)

Author: Jack Wallen

Published: 2026-07-23T05:40:01Z

Content type: article

Language: en

Sources: [Platform Engineering Blog](<https://devfeed.tech/sources/platform-engineering-blog.md>)

Topics: [virtualization](<https://devfeed.tech/topics/virtualization.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Security](<https://devfeed.tech/topics/security.md>), [Amazon Web Services](<https://devfeed.tech/topics/aws.md>), [Nitro System](<https://devfeed.tech/topics/nitro-system.md>), [Multi-tenancy](<https://devfeed.tech/topics/multi-tenancy.md>)

Tags: [aws](<https://devfeed.tech/tags/aws.md>), [containers](<https://devfeed.tech/tags/containers.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [multi-tenancy](<https://devfeed.tech/tags/multi-tenancy.md>), [nitro-system](<https://devfeed.tech/tags/nitro-system.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [security](<https://devfeed.tech/tags/security.md>), [virtual-machines](<https://devfeed.tech/tags/virtual-machines.md>), [virtualization](<https://devfeed.tech/tags/virtualization.md>)

### AI overview

Cloud providers generally run Kubernetes and other containerized workloads on virtual machines rather than bare metal because virtualization offers security, isolation, flexibility, scalability, and near-bare-metal performance. AWS Nitro and Firecracker help reduce virtualization overhead, while bare metal remains reserved for specialized performance or hardware-access requirements.

### Source excerpt

Why do cloud giants use VMs for Kubernetes? Learn why AWS, Azure, and Google prioritize Virtual Machines for containerized workloads over bare metal, focusing on security and scalability.