Talkin' Puma and the Rails Performance Workshop with Nate Berkopec

Jan. 15, 2021, 2 p.m. (2 years, 8 months ago)

[00:01:20] Nate tells us a little bit about himself, what he does, and a book he wrote. 

[00:02:18] Nate talks about the Rails Performance workshop he released a month ago.


[00:06:02] Jason asks Nate if he has any plans to go back into the in-person training or if he will keep the current format if it’s showing more advantages.


[00:08:03] If you are interested in learning more about performance, Nate shares advice what you should do.

[00:09:37] Jason announces that today we are basking in the release of Hotwire, and he’s curious from a performance perspective if there are any downsides or any performance benefits to doing HTML over the wire.

[00:19:37] Chris asks Nate to talk about scaling his WebSocket side of things. He also tells us about Puma.


[00:24:11] Nate tells us about Samuel Williams (ioquatix) and his work around the fiber scheduler and he also mentions Ractor being released soon.

[00:26:34] Nate explains the Global VM Lock and he tells us he has an article on his Speedshop blog about this. He also mentions he has a new book coming out in January, and he tells us in your Ruby process there is a “virtual machine” that runs Ruby code.


[00:29:10] Nate explains that Puma has two jobs and Andrew asks Nate if there is anything on the horizon for Puma.

[00:34:10] Nate tells us what it was like traveling the world during the pandemic and what’s it’s like being back home.



Jason Charnes

Chris Oliver

Andrew Mason


Nate Berkopec


Nate Berkopec Twitter


Speedshop Blog

“The Practical Effects of the GVL on Scaling in Ruby” by Nate Berkopec


The Complete Guide To Rails Performance by Nate Berkopec

The Rails Performance Workshop


Hotwire for Rails-GitHub

How to use Hotwire in Rails by Chris Oliver

Samuel Williams ioquatix


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