WebKit Blog

Introducing the WebKit FTL JIT

Designed to bring aggressive C-like optimizations to the largest variety of JavaScript programs.

Concurrent JavaScript: It can work

With the recent addition of SharedArrayBuffer, concurrency is finding its way into the JavaScript language.

Introducing Riptide: WebKit's Retreating Wavefront Concurrent Garbage Collector

The new Riptide garbage collector in WebKit leads to a five-fold improvement in latency in the JetStream/splay-latency test.

Introducing the B3 JIT compiler

WebKit's FTL JIT now uses a new backend on OS X — the Bare Bones Backend, or B3 for short, replaces LLVM as the low-level optimizer.

Unusual speed boost: size matters

One of my concerns last year was that while WebKit was getting faster on common benchmarks, some operations were getting slower as a byproduct of new features and optimizations.

Speculation in JavaScriptCore

This post is all about speculative compilation, or just speculation for short, in the context of the JavaScriptCore virtual machine.

How Web Content Can Affect Power Usage

Users spend a large proportion of their online time on mobile devices, and a significant fraction of the rest is users on untethered laptop computers.

Webkit - Introducing SquirrelFish Extreme

Just three months ago, the WebKit team announced SquirrelFish, a major revamp of our JavaScript engine featuring a high-performance bytecode interpreter.

How WebKit Loads a Web Page