Details on how workers prefetch data?

[ptrblck]

@Vinayaka_Hegde

So, 2*8 = 16 number of batches have to be pre loaded .

This would be the case if the default prefetch_factor of 2 is used but note that the 2 is not coming from the batch_size.
You can take a look at this code snippet to see how the prefetch_factor works.