Hey Yasir, to use tensorflow prefetch your data needs to be (1) chunked and (2) stored on some server/bucket/network-attached FS. If both conditions are not satisfied, TF prefetch won't help you.
How large is the dataset we're talking about?
That's not that much. You can use the AWS autoscaler and provision a spot g4dn GPU instance with a bit more disk. This should cost you less than 50 cents an hour
Thank you. The data is stored in GCP bucket and it’s about 4k images of 640x640. I’m also using host service clearml.