¶ EC2 Instance Types
¶ Types
¶ 1. General Purpose
General purpose instances provide a balance of compute, memory and networking resources, and can be used for a variety of diverse workloads. These instances are ideal for applications that use these resources in equal proportions such as web servers and code repositories.
• Web servers
• Code repositories.
¶ 2. Compute Optimized
Compute Optimized instances are ideal for compute bound applications that benefit from high performance processors. Instances belonging to this family are well suited for batch processing workloads, media transcoding, high performance web servers, high performance computing (HPC), scientific modeling, dedicated gaming servers and ad server engines, machine learning inference and other compute intensive applications.
• Batch processing workloads
• Media transcoding
• High performance web servers
• High performance computing (HPC)
• Scientific modeling & machine learning
• Dedicated gaming servers
¶ 3. Memory Optimized
Memory optimized instances are designed to deliver fast performance for workloads that process large data sets in memory.
• High performance, relational/non-relational databases
• Distributed web scale cache stores
• In-memory databases optimized for BI (business intelligence)
• Applications performing real-time processing of big unstructured datainformation
¶ 4. Accelerated Computing
Accelerated computing instances use hardware accelerators, or co-processors, to perform functions, such as floating point number calculations, graphics processing, or data pattern matching, more efficiently than is possible in software running on CPUs.
¶ 5. Storage Optimized
torage optimized instances are designed for workloads that require high, sequential read and write access to very large data sets on local storage. They are optimized to deliver tens of thousands of low-latency, random I/O operations per second (IOPS) to applications.
• High frequency online transaction processing (OLTP) systems
• Relational & NoSQL databases
• Cache for in-memory databases (for example, Redis)
• Data warehousing applications
• Distributed file systems
¶ EC2 Example Sizes
Site for comparing EC2 instance offerings: (https://www.ec2instances.info)
¶ EC2 Naming standards
m5.2xlarge
m: instance class
5: generation (AWS improves them over time)
2xlarge: size within the instance class