A New Bytecode Format for JavaScriptCore

In revision r237547 we introduced a new bytecode format for JavaScriptCore (JSC). The goals of the new format were to improve memory usage and allow the bytecode to be cached on disk, while the previous format was optimized for interpreter throughput at the cost of memory usage. In this post, we will start with a quick overview of JSC’s bytecode, key aspects of the old bytecode format and the opti

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JSCのバイトコードの形式が変わってメモリ消費量が減った