This is called out of band GC. We've been doing it for years in Ruby with Unicorn https://blog.newrelic.com/2013/05/28/unicorn-rawk-kick-gc-out-of-the-band/ htt

This is called out of band GC. We've been doing it for years in Ruby with Unicorn https://blog.newrelic.com/2013/05/28/unicorn-rawk-kick-gc-out-of-the-band/ https://blog.newrelic.com/2013/05/28/unicorn-rawk-kick-gc-ou... However when the ruby community moved to Puma which is based on both processes and threads it was needed less. Not that this is rocket science (it's still far behind the JVM and .NET), I assume a hybrid process/thread model is something that hadn't reached a critical mass in the Python/Django/Flask/Bottle community?