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JSON.stringify is a core JavaScript function for serializing data. Its performance directly affects common operations across the web, from serializing data for a network request to saving data to localStorage . A faster JSON.stringify translates to quicker page interactions and more responsive applications. That’s…
In this blog post, we explain two optimizations for WebAssembly that we recently implemented in V8 and that shipped with Google Chrome M137, namely speculative call indirect inlining and deoptimization support for WebAssembly. In combination, they allow us to generate better machine code by making assumptions based…
V8’s end tier optimizing compiler, Turbofan, is famously one of the few large scale production compilers to use Sea of Nodes (SoN). However, since almost 3 years ago, we’ve started to get rid of Sea of Nodes and fall back to a more traditional Control Flow Graph (CFG) Intermediate Representation (IR), which we named…
At V8, we're constantly striving to improve JavaScript performance. As part of this effort, we recently revisited the JetStream2 benchmark suite to eliminate performance cliffs. This post details a specific optimization we made that yielded a significant 2.5x improvement in the async fs benchmark, contributing to a…
