[Ci-users] Performance issues on the EC2 T2 nodes

Thu Oct 20 19:46:29 UTC 2022
Michael Hofmann <mhofmann at redhat.com>

Hi František,

On Thu, Oct 20, 2022 at 08:30:23PM +0200, František Šumšal wrote:
> I originally reported it to the CentOS Infra tracker [0] but was
> advised to post it here, since this behavior is, for better or worse,
> expected, or at least that's how the T2 machines are advertised. Is
> there anything that can be done to mitigate this? The only available
> solution would be to move the job back to the metal nodes, but that's
> going against the original issue (and the metal pool is quite limited
> anyway).

T2 instances don't have to be rate limited if you are ready to pay for
it: iiuc the T2 unlimited mode [1] allows you to trade higher CPU
utilization for money.



[1] https://aws.amazon.com/blogs/aws/new-t2-unlimited-going-beyond-the-burst-with-high-performance/

> [0] https://pagure.io/centos-infra/issue/950

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