Link roundup #5

"The new shared memory type, called SharedArrayBuffer, is very similar to the existing ArrayBuffer type; the main difference is that the memory represented by a SharedArrayBuffer can be referenced from multiple agents at the same time. (An agent is either the web page’s main program or one of its web workers.) The sharing is created by transferring the SharedArrayBuffer from one agent to another using postMessage..."
— A Taste of JavaScript’s New Parallel Primitives

"Compared to OS-provided locks like pthread_mutex, WTF::Lock is 64 times smaller and up to 180 times faster. Compared to OS-provided condition variables like pthread_cond, WTF::Condition is 64 times smaller. Using WTF::Lock instead of pthread_mutex means that WebKit is 10% faster on JetStream, 5% faster on Speedometer, and 5% faster on our page loading test."
— Locking in WebKit

"uvloop makes asyncio fast. In fact, it is at least 2x faster than nodejs, gevent, as well as any other Python asynchronous framework. The performance of uvloop-based asyncio is close to that of Go programs."
— uvloop: Blazing fast Python networking

"The bias-variance trade-off appears in a lot of different areas of machine learning. All algorithms can be considered to have a certain degree of flexibility and this is certainly not specific to kNN. The goal of finding the sweet spot of flexibility that describes the patterns in the data well but is still generalizable to new data applies to basically all algorithms."
— Misleading modelling: overfitting, cross-validation, and the bias-variance trade-off

"Simple yet flexible JavaScript charting for designers & developers"
— Chart.js