gHacks technology news » JavaScript performance http://www.ghacks.net A technology blog covering software, mobile phones, gadgets, security, the Internet and other relevant areas. Mon, 23 Nov 2009 22:22:46 +0000 http://wordpress.org/?v=2.8.6 en hourly 1 Opera 10 Alpha Passes Acid 3 Test http://www.ghacks.net/2008/12/04/opera-10-alpha-passes-acid-3-test/ http://www.ghacks.net/2008/12/04/opera-10-alpha-passes-acid-3-test/#comments Thu, 04 Dec 2008 12:56:29 +0000 Martin http://www.ghacks.net/?p=8714 A first alpha preview of the upcoming web browser Opera 10 has been released by the Opera development team. Among the most notable difference to previous versions is that the browser is passing the Acid 3 test with a score of 100/100. Opera 10 makes use of the new Presto 2.2 rendering engine which improves speed, performance and security significantly.

The Opera team speaks of a 30% speed increase over the previous version of the rendering engine. A test of the JavaScript performance of Opera 10 revealed astonishing results. Opera 10 completed the
Web Browser Javascript Benchmark in 188ms which is very fast compared to Firefox 3.0.4 which needed 349ms, Safari 3.1.2 with 344ms or Opera 9.52 with 420ms. It’s obviously not fair to compare a development release with web browsers who have already been released but it should give anyone an understanding about the performance increase in this new Opera version.

What else is new in Opera 10? Opera 10 adds a long requested inline spellchecker and an interesting auto-update function which can update Opera automatically whenever a new version has been released.

opera 10

Web developers will like the support of web fonts, SVG and opacity through RGBA and HSLA. The current release schedule aims for a beta in early 2009 and a final release of Opera 10 later that year.

Interested users can download the Opera 10 alpha release for Windows, Linux or Mac.

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]]> http://www.ghacks.net/2008/12/04/opera-10-alpha-passes-acid-3-test/feed/ 12 Test Your Browser’s JavaScript Performance http://www.ghacks.net/2008/10/17/test-your-browsers-javascript-performance/ http://www.ghacks.net/2008/10/17/test-your-browsers-javascript-performance/#comments Fri, 17 Oct 2008 21:53:11 +0000 Martin http://www.ghacks.net/?p=7701 Cnet ran some tests on the JavaScript performance of selected browsers like the latest Firefox version, Firefox beta and Google Chrome builds. JavaScript performance was in the news since Google and the Mozilla Firefox development team announced improvements in JavaScript performance.

Cnet used the SunSpider JavaScript Benchmark to test browser performance of the browsers. There are other factors that have an impact on JavaScript performance like the processing power of the computer system.

The results were that the latest Firefox 3.1 beta with the new JavaScript engine TraceMonkey was the fastest with a score of 2,257, followed by Chrome with 2,904, Firefox 3 beta 1 without TraceMonkey with 4,233, Safari 3.1.2 with 6,351 and Internet Explorer 8 Beta 2 at the end with a score of 9,025.

Cnet failed to test any version of Opera and should probably have tested the latest nightly test of Safari instead. Here are the results that a Windows XP service pack 3 with a Intel 8400 Wolfdale processor and 4 Gigabytes of computer memory.

  • Firefox 3.1 Beta 1 without TraceMonkey- 1800
  • Firefox 3.1 Beta 1 with Tracemonkey 1817
  • Firefox 3.03 – 2139
  • Opera 9.6 – 2736

It’s a bit surprising that Firefox without TraceMonkey was faster than Firefox with it enabled. It could be due to the fact that the portable version of Firefox has been used to run the tests. But the interesting question is, how does your browser compare? You need to run at least two browsers to be able to tell how it compares to the other browser.

Keep in mind that JavaScript performance is not everything and that page loading time is dependent on additional factors.

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