Rails memory usage - understanding oink output

Question

I use the oink gem to profile the memory usage of the application, and I get some strange output, I don’t understand.

My homepage loads several apartments using Apartment.where(visible: true)

When I run this request in the console Apartment.where(visible: true).count, I get 8.

But when I load the main page, which should load the same 8 apartments, my Oink magazines say:

Instantiation Breakdown: Total: 180 | Apartment: 47 .....

Do you have any ideas where these additional apartments may appear?

Thanks Uri