The optimizations of Google Chrome's V8 JavaScript engine in Chrome 28 made asm.js benchmarks more than twice as fast as prior versions of Chrome, although Chrome's V8 does not use ahead-of-time compilation.
Google Chrome的V8 JavaScript引擎在Chrome 28中对asm.js基准测试的性能是以前Chrome版本的两倍以上，尽管Chrome的V8没有使用提前编译。