Hi,

I noticed that using s5cmd was slow for me, doing a simple s5cmd ls would take ~20 seconds to start.

I decided to look into and I found why s5cmd was so slow when it ran in my machine, but ran ok in an ec2 instance, well, turns out that by default has a retry of 10 requests. Doing s5cmd -r 0 ls would actually be fast.

After some digging, I found out that it would make 10 requests (throttling included) for getting the credentials. So, it would make 10 calls to 169.254.169.254/latest/api/token and then fallback to 169.254.169.254/latest/meta-data/iam/security-credentials/

Then I Google similar issues and I got this: aws/aws-sdk-go#2972

Maybe it should have a less aggressive retry for getting tokens?