The latest JavaScript Engine in Firefox

Since Google launched Chrome with V8 JavaScript engine
The appetite for engine execution efficiency has been improved again. Many browser developers have racked their brains to improve their JavaScript performance. Opera's latest 10.50 carakan

The engine is said to have exceeded V8, and Firefox developers are not willing to show weakness.

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Users who recently upgraded to Firefox 3.6 have found that their JavaScript speed has been significantly improved, although
There is still a gap between the tracemonkey engine and googel V8. However, this situation is about to change and the Mozilla team is developing a new
The JavaScript Engine jägermonkey is expected to improve the Javascript performance of Firefox to a new level.

Currently, one reason why the Firefox tracemonkey engine has poor performance is that its trace algorithm still has problems.
Is a javascript
But this algorithm cannot be correctly executed when it encounters complex, nested, especially recursive loop statements (see this article for details ).
), Firefox
Therefore, the explain execution method is returned, and the explain execution efficiency is very low.

The Mozilla team is working on this issue. The new jägermonkey engine has shown very positive results in the test, and the final performance improvement may be as high as 30% ~
40%. Mozilla
Dave mandelin is optimistic about this.
He said that when J ägermonkey executes all the sunspider scripts, J äger
The mode is 18% faster than the interpretation mode, which is not considered optimization and improvement in other aspects. Their improvements in the new engine include many aspects.

If you are interested in this
Blog posts
It is worth reading. To put it simply, Firefox, which uses the jägermonkey engine, will be more eye-catching. About Firefox
The latest version of the related files, you can get to this address: http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/
.

Source: http://www.downloadsquad.com/2010/02/27/early-work-on-mozilla-firefox-new-javascript-engine-nets-big-speed-gai/

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