How to find out what instance is best for my case?

Question

my first question ever here (my first week with AWS). I'm not sure, if this is even a valid question, but I hope for the help of the community.

We would like to test our software on the AWS cloud world, but we are not sure what instance we should take. we approx. know we need 4GB RAM for each CPU, but our tool need a lot of IO, as it constantly read information in and write the output. 
Is the EBS storage the best option for high read/write frequency? is there an alternative (NVMe)?

What is the best way to test such parameters?

thanks

Assa

Accepted Answer

[Storage Optimized](https://aws.amazon.com/ec2/instance-types/) instances provide the best performance for storage-intensive workloads. I would recommend to start with General Purpose instances with NVMe SSD, e.g, m7gd or m6id.

Answer

In the instance selection box there is a "Get Advice" button which then uses Amazon Q to help you choose an instance type based on four supplied parameters. These parameters are "Use Case, Workload type, Priority & CPU Manufacturers"

This will generate a prompt to Amazon Q and the answer should guide you to a family of instance types that will hopefully be suitable.

This is a great way to get help in choosing from the instance types available.

![Instance Selection Box](/media/postImages/original/IMPMJUlYjxT4CUnisfR4yAjA)

Answer

Hi,

The range of available EC2 instances is quite wide: 600+ at time IIRC.

So, such an article will allow you to better navigate across all possible options to select the best one for your use case: https://www.freecodecamp.org/news/how-to-select-the-right-ec2-instance/

Best,

Didier

How to find out what instance is best for my case?

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