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How waiting in line for your webapp just got nicer Help! Load spikes! Sometimes there is temporarily more traffic than expected (yay!), or maybe you're affected by a third-party dependency slowdown (boo!). Learn how to optimize user experience in these situations.
ActionCable under stress: Finding a DoS vulnerability in Rails 5 WebSockets Apps In this article we will show you how Rails 5.0.0 ActionCable applications on Puma, the new default Rails app server, might be exposed to denial of service by slow clients. We will be using the OS X network shaping tools
The brokenness of the sendfile() system call The sendfile() system call has a bad reputation. In theory it is pretty nice: the system call allows you to send a file over a socket, without having to read out the file and writing to the socket block-by-block. Instead