Ruby on rails : Best method / approach [on hold]

1. 
   

   find_each is better than instead of all.each

   
   

   find_each() method works in batches of 1000. This means that if I have thousands of records in my database,find_each() will load into memory only 1000 at a time, instead of loading them all at once and possibly overwhelming the server.

   
   


2. 
   

   Sidekiq is supposed to perform better than resque.

   
   

what else?