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Cost Savings Opportunities on AWS using ARM-based Instances

Navdeep Singh Gill | 09 October 2024

Cost Savings Opportunities on AWS using ARM-based Instances
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aws using arm-based instances

Cost Management Overview 

AWS provides drawing several ways of cost savings that include instance proper provisioning, applying discounts offered by Spot or Reserved Instances and using Auto Scaling. Further, optimization of each via varying types of storage solutions provided by AWS including S3 and glacier lower overall costs through matching storage solutions to usage patterns. These strategies will help keep the cost of business affordable if they are to adopt cloud computing while optimizing performance. 

Rise of ARM Architecture  

ARM-based processors including the many in use by AWS in their Graviton line-up are revolutionizing Cloud Computing through efficiency optimization and cost-saving. Moreover, lower power consumption and heat output of ARM make it possible to provide instances up to 40% cheaper compared to those based on x86 processors for AWS. This makes ARM-based instances perfect for any kind of work, helping businesses save a ton of money without compromising on performance. As more applications are optimized for ARM, its role in cloud cost management continues to grow. 

Understanding Instances

AWS Graviton processors are designed and developed by Amazon, based on ARM architecture to derive better performance and cost optimization for the cloud operations. The first-generation hardware introduced ARM architecture to AWS, however, it was the second generation, the Graviton2, that started making tremendous gains in price-performance where AWS noted up to 40% better price-performance compared to x86 instances which is Intel and AMD.

 

The graviton processors enable high performance in many types of applications by offering compute memory and storage scalability. It supports different instance categories including t4g, m6g, c6g, and r6g instances, which are developed for general purpose, computational and memory demands respectively. AWS Graviton3 is now the newest addition to this series and it’s even more advanced and delivers better performance and is more energy efficient making it even more appealing to organizations that want to save costs. 

ARM and x86 are two different forms of processors each with its advantages for computing.  

  • Instruction Set: ARM employs a RISC model of micro architecture which came as a distinct improvement over the traditionally employed CISC model of x86 architecture. This results into the ARM processor performing tasks with fewer number of instructions compared to a complex instruction set architecture.

  • Power Efficiency: The feature that has made ARM processors so popular is its low power consumption, which make it suitable for mobile devices. This means conserving costs in cloud environments for AWS and in extension, coming up with ways to offer its customers lower prices.

  • Cost: ARM-based instances are typically less costly than those of x86 . This is especially advantageous at instances that are highly scalable with applications and workloads that will be relatively cheaper. 

Benefits of Technology

Lower Cost per Instance  

Still, apparently one of the biggest advantages of using ARM cores, like instances on AWS built using Graviton processors, is the lower cost per instance. AWS Graviton2 instances are cheaper by a 40-percent ratio against other traditional x86-based instances not excluding Intel and AMD. This is due to the productivity of ARM architecture and the local modifications that AWS has implemented. Network data transfer cost savings apply to a wide range of instance types, so they are well-suited for broad use, optimized for compute, and memory to memory use-cases respectively.  

Reduced Energy Consumption  

ARM is by its nature power optimized which explains why it’s dominant in the mobile device market. In the cloud, this energy-saving characteristic results in reduced use of power by data centers, therefore substantial energy savings. ARM instances place less demand on the available power supply and create less heat thus cutting costs in cooling and general operation. In so doing, it was able to translate efficiency to its customers through low instance pricing while at the same time running a green footprint.   

 

Performance Considerations 

ARM Instance Performance Based on Different Workload  

For this reason, when you choose instance on AWS with ARM architecture based on Graviton processors, you will be able to get high results in different tasks. Specifically, for mostly web, microservices, containerized applications, the Graviton2 and Graviton3 instances come with a massive performance uplift at a cheaper price than their x86 counterparts.  

  

Product types that can be benefited by the efficient design of ARM Processors include computer center optimization, data analytical, machine learning inference as well as high-performance computing. In these instances one gets competitive processing for compute which provide performance and scalability that is ideal for compute-bound applications.  

  

Memory intensive applications including in-memory data stores (Redis, Memcached), big data processing, ARM based instances offer better memory to CPU compared to its x86 counterpart, meaning that they can process more in less time and with less resource utilization. Due to these architectures, ARM instances are good for many tasks, and particularly for those workflows that use multiple threads.  

Enhancements made to Increase the Satisfaction of Applications Built on ARM Architecture  

It shall also be noted that, to unleash the inherent capabilities of ARM-based instances, applications may have to be reworked for ARM architectures. This can mean recompiling code to arm the instruction set and making changes to get as much benefit from ARM’s efficiency for scarce resources.  

  

Current industry-standard programming languages and application development platforms including Python, Java, Node.js and Go are implemented for ARM architecture. Third, there is an option to use CI, for instance, AWS CodeBuild to build applications which work specifically on ARM architecture.  

  

Especially, containerized applications can be benefited from ARM optimization. Bash tools like Docker and Kubernetes help to organize and package applications in order to ensure that ARM-based instances are the same in development and production. Optimizing server and storage applications can lead to further advancements that help these businesses get more performance and efficiency than x86 architectures. 

Use Cases 

Web Servers and Microservices  

Web servers and microservices architecture, as well as ARM based instances, generally, and especially those utilizing AWS Graviton processors are the best match. Due to their optimized resource usage and being highly scalable, implements are good at accommodating web traffic and service requests without complex extra costs.

 

Featuring abundant core and cache capacity and high traffic connectivity, Graviton2 instances are an affordable web application implemented on such platforms as NGINX, Apache, or Node.js; at the same time, web applications requiring high-throughput web servers can benefit from the performance Graviton2 offers. In microservices different kinds of workloads are partitioned into multiple smaller parts, ARM based instances play a crucial role in effective utilization of resources and cut down the costs over a distributed system.    

Data Processing and Analytics  

Thus, for data processing and analytics use cases three generations of ARM-based instances provide higher performance-to-cost ratios. Computational loads that include ETL (Extract, Transform, Load) processing, log parsing, large scale data processing will see benefit from large memory bandwidth and multi-threading in ARM.

 

They are ideal for running data pipelines over frameworks such as Apachel Hadoop or Spark where large data sets can be processed in parallel thereby wearing down on processing time and operation costs. Hence by moving data analytics workloads to Graviton instances, organizations can now process it faster while keeping costs low.  

Containerized Workloads (ECS, EKS)    

The application of ARM based instances is ideal for containerized applications used in services such as the Amazon ECS and Amazon EKS. It is effortless to build containers that can run on the ARM architectures, and indeed many of the most used containers can now be run directly on ARM-based AWS instances as AWS offers multi-architecture images for many of the most usual containers.

 

ARM based instances can significantly optimize the costs of the container structures reducing the amount of hardware infrastructure needed to manage the workload efficiently under the containerised setup. No matter if you are dealing with microservices, batch processes, or serverless applications, ARM-based instances are the optimal and significantly cheaper substitute for x86 hardware.  

Comparing Costs: ARM vs. Intel/AMD 

introduction-icon Pricing Comparison Across Instance Types

When comparing the costs of ARM-based instances (powered by AWS Graviton processors) with Intel and AMDinstances, ARM instances consistently offer better price-performance ratios. For example, Graviton2 instances are priced up to 20% lower than equivalent x86-based instances. This cost difference is especially evident in commonly used instance types such as: 

  • t4g (ARM) vs. t3 (Intel): Like t3 instances, the t4g instances which use ARM architecture, are also multipurpose but cheaper than t3.
  • m6g (ARM) vs. m5 (Intel): it turns out that m6g instances offer up to 40% better price/performance than Intel-based instances for those workloads that do not rely on specialized x86 instructions.
  • c6g (ARM) vs. c5 (Intel): Across all compute instances, the c6g instances, powered by the Graviton processors, are cheaper e and often have similar or superior performance for some tasks, including data processing or high-performance computing. 

Total Cost of Ownership (TCO) Analysis 

Despite the fact that upfront instance pricing gives a priori comparison of costs a more thorough analysis includes the evaluation of TCO. Overall, TCO goes far beyond the cost of the instance and considers aspects as varied as efficiency, electrical consumption, scaling requirements, and, naturally, the cost of maintenance.  

  • Power Efficiency: ARM instances are notorious for being energy optimized, partly because AWS has to spend less on power and cooling as compared to x86 processors. This cost is then shifted back to customers because Graviton instances consume less power and are more environmentally friendly than those of competitors. 

  • Workload Optimization: For workloads that scale well on ARM architecture, customers can get improved compute and memory density for less, and therefore require less infrastructure. There are fewer instances necessary to perform the same amount of work which goes on to mean further savings in the long run.

  • Scalability: The use of ARM-based instances is traditionally associated with even more opportunities for scaling, so businesses can achieve greater scale and gain even better cost savings compared to x86 equivalents. If expanding through ASG or deployable containers, ARM instances can respond well to demand while minimizing the overall cost. 

Achieving Savings

Right-Sizing ARM Instances   

For use of ARM based instances to further save you need to optimize your instances according to workload. With right-sizing you are able to select the correct instance type and size for your particular workload which will not over allocate resources. AWS has supporting tools such as AWS Compute Optimizer and AWS Cost Explorer for understanding resource wastage and recommending new least-cost Graviton-based instances.  


For example, the web application with the middle traffic might get the benefit of run on t4g types as they are issued for the general workloads while the data processing job can be good for the run on c6g as it is oriented to the compute work. By using a methodology of matching the instance types and sizes with workloads, businesses can simultaneously decrease the cloud costs and ensure performance. 
 

Spot Instances and Savings Plans  

That is why the instances based on ARM can still lower costs by utilizing Spot Instances and Savings Plans. With Spot Instances, you can run applications on unused Amazon EC2 capacity at significantly lower prices compared to On-Demand Instances- up to 90% less. These are suitable for lean or bursty applications including analytics, batch processing or CI/CD where certain degree of interruption is acceptable.  

You can also Save money by purchasing a Savings Plan that offers reduced rates for consistent usage and at first, Spot Instances. Compute Savings Plans can be used on any instance family including Graviton-based instances and allow for instance flexibility across different families and regions while still enabling a lower price. This allows for foundational workloads to be run on ARM-based Savings Plans while still getting the performance benefits of ARM instances from burstable instances for bursts of demand. 

 

Scaling Strategies with Auto Scaling and Elastic Load Balancing 

There are also the fundamentals of an Amazon Web Services economy or solid foundational pillars such as Auto Scaling and Elastic Load Balancing, (ELB) which aim at containing costs through the dynamic scaling of instances. Auto Scaling launches ARM-based instances so that you can readily scale up or down based on extremely heavy or sparse traffic and thereby pay appropriately for the actual computing resources you are using. 


For instance, when the current traffic reaches high levels, one can just use Auto Scaling to bring more of the Graviton2 instances and when traffic is low, Auto Scaling allows terminating instances that are not required to save on costs. This dynamic scaling is helpful in keeping a lean cost structure without the need for outside intervention.
 

Final Thoughts 

Key Takeaways for Optimizing ARM-based Instance for Cost Cutting  

New instances built on ARM architecture at AWS using the Graviton processors provide superior value and performance, further enhanced with a greatly reduced cost. Through such instances, the businesses can be 40% competitive far better than other pc based ones like the of Intel or the AMD x86 based ones.

 

The major areas of saving comprise of using right instance types for the needs, exclusive offers like Spot Instances and Savings Plans, Uses like Auto Scaling and Elastic Load Balancing enable variable resources consumption. ARM instances are best suited when used on applications such as: web servers, microservices, data analytics, and machine learning inference.  

Trends in Moving to ARM on AWS in the Future  

Going forward, there are likely to be an even faster growth in ARM-based instances on AWS as many companies strive to minimize the costs of their cloud operations and enhance performance. As the evolution of Graviton processors remains steadfast with Graviton3 included, ARM will continue to extend the price-performance models to new-wide-ranging compute-hungry applicative workloads as well as AI and ML business loads.

 

Further, as a result of continually increasing use of ARM architectures in software vendor and development applications, the environment surrounding ARM instances will expand, enabling overall systems migration and adoption by businesses through cost-efficient industry advances. Cloud of the future will accommodate an enhanced role of ARM particularly to organizations with inclined interest on performance per centesimal cost on AWS.