This is true. As far as I understand, the only issue with memory leaks have been around super long running processes that create cyclical references that cause

This is true. As far as I understand, the only issue with memory leaks have been around super long running processes that create cyclical references that cause refcounting to not "notice" that something is free. I have never had a memory leak problem with a web service, and I wrote* the PHP backend for Grooveshark (45 million monthly users, averaging 2 hours per visit, running on half a dozen front end web servers. Sadly I don't remember RPS figures at this point) *not to take sole credit. I created RPC framework and initial API, and oversaw a small team of very talented engineers who added a significant chunk of the functionality powering Grooveshark over the years