View CPU threads and cores for an Amazon EC2 instance (original) (raw)

You can view the CPU options for an existing instance by describing the instance.

Console

To view the CPU options for an instance

Open the Amazon EC2 console athttps://console.aws.amazon.com/ec2/.
In the left navigation pane, choose Instances and select the instance.
On the Details tab, under Host and placement group, find Number of vCPUs.

AWS CLI

To view the CPU options for an instance

aws ec2 describe-instances \
    --instance-ids i-1234567890abcdef0 \
    --query Reservations[].Instances[].CpuOptions

The following is example output. The CoreCount field indicates the number of cores for the instance. The ThreadsPerCore field indicates the number of threads per core.

[
    {
        "CoreCount": 24, 
        "ThreadsPerCore": 2
    }, 
]

PowerShell

To view the CPU options for an instance

Use the Get-EC2Instance cmdlet.

(Get-EC2Instance `
    -InstanceId 'i-1234567890abcdef0').Instances.CpuOptions

The following is example output.

AmdSevSnp CoreCount ThreadsPerCore
--------- --------- --------------
          24        2

Alternatively, to view CPU information, you can connect to your instance and use one of the following system tools:

Windows Task Manager on your Windows instance
The lscpu command on your Linux instance

You can use AWS Config to record, assess, audit, and evaluate configuration changes for instances, including terminated instances. For more information, see Getting Started with AWS Config in the_AWS Config Developer Guide_.

Specify CPU options

AMD SEV-SNP

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