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WebKit launched JetStream 2, a new benchmark suite to measure the performance of JavaScript and WebAssembly operations in web browsers recently.

Browser benchmarks were a huge thing back when Google Chrome launched. Google used them to demonstrate how much faster Chrome's JavaScript performance was when compared to Internet Explorer or Firefox, the two main browsers back in the day.

One of the effects was that browser makers started to optimize and improve the performance of JavaScript; this resulted in benchmarks becoming less important as speed improved in browsers.

JetStream 2

JetStream 2 tests JavaScript and WebAssembly performance of web browsers as well as the performance of other functions such as Web Workers. Just hit the start button on the JetStream 2 benchmark website to test the browser.