We have scheduled scripts running on our system which iterate through 5-10k products, look at the stock situation, update out of stock status and amend a couple of custom fields used for friendly display messages on our web site. If stock is not on hand, the same script also looks at outstanding purchase orders to establish a likely availability date.

I come from the world of PHP and SQL, where a script which takes 5 minutes to run is something which may indicate cause for concern. With our Netsuite system, the above process takes something like 14 instances of the same script repeatedly restarting in order to overcome governance, each running for something like 800-1000 seconds. Daily, we're seeing this process take 4-6 hours.